Answer:
196.1 cm^2
Step-by-step explanation:
The area of a circle is given by Area = πr^2
R is (15.8 cm)/2 = 7.9 cm
Area = (3.14)*(7.0cm)^2
Area = 196.1 cm^2
Answer:
The formula to calculate the area of a circle is given by: A = π * r^2, where r is the radius of the circle.
Given the diameter of 15.8 cm, we can calculate the radius by dividing the diameter by 2: r = 15.8 cm / 2 = 7.9 cm
Plugging the value of the radius into the formula: A = π * 7.9^2 = 3.14 * 62.41 = 196.0794 cm^2
Rounding the answer to the nearest hundredth, the area of the circle with a diameter of 15.8 cm is approximately 196.08 cm^2.
39 · 89 · 89 · 53 · 74
39
·53
·74
·89
Multiply.
39 * 89 * 89 * 53 * 74 * 39 * 53 * 74 * 89
= 16,493,560,000,000,000
Geometry parallel lines (please solve and explain)
Answer:
see explanation
Step-by-step explanation:
∠ 1 and ∠ 2 are corresponding angles and are congruent , then
7x - 27 = 4x + 18 ( subtract 4x from both sides )
3x - 27 = 18 ( add 27 to both sides )
3x = 45 ( divide both sides by 3 )
so
∠ 1 and ∠ 2 = 7x - 27 = 7(15) - 27 = 105 - 27 = 78°
∠ 2 and ∠ 3 are corresponding angles and are congruent , then
∠ 3 = 78°
∠ 3 and ∠ 4 are same- side interior angles and sum to 180° , that is
78 + 4y + 2 = 180
4y + 80 = 180 ( subtract 80 from both sides )
4y = 100 ( divide both sides by 4 )
y = 25
thus
∠ 4 = 4y + 2 = 4(25) + 2 = 100 + 2 = 102°
in conclusion
x = 15 , y = 25 , ∠ 1 = 78° , ∠ 4 = 102°
you're given a six sided die. you're told that rolling an even number is as likely as rolling an odd number. you're told that rolling a 1, 2, or 3 is as likely as rolling a 4, 5, or 6. you're told that rolling a 1 is as likely as rolling a 6. is the probability of rolling a 3 equal to the probability of rolling a 4?
P(A) is the likelihood that a six-sided die will produce an even number when rolled (2, 4, or 6).
P(B) is the likelihood that a six-sided dice will land on four.
P(A) = 3/6 = 1/2
P(B) = 1/6
The probability of rolling an even number followed by a four, or P(C), equals P(A) * P(B) = 1/2*1/6 = 1/12 = 0.083 since events A and B are independent of one another.
With a six-sided die, there is a roughly 0.83*100 or 8.3% probability of rolling an even number (2, 4, or 6), followed by a four.
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The Nature's Preserves jam factory is buying supplies for next month. They make 2 flavors of strawberry jam: Classic Strawberry and Tropical Strawberry. Both flavors use 10 pounds of fresh strawberries in every 16-jar batch. The factory plans to make 4,000 jars of Classic Strawberry jam and 2,400 jars of Tropical Strawberry jam next month. How many tons of strawberries should they order?
The number of tons of strawberries they should order is; 2 Tons
How to solve Algebra Word Problems?The parameters in the question are;
Quantity of flavor used = 10 pounds for every 16-jars
Number of jars of classic strawberry = 4000 jars
Number of jars of Tropical strawberries = 2400 jars
If 16 jars = 10 pounds
Then 4000 jars = 4000 * 10/16 = 2500 pounds
Similarly;
2400 jars = 2400 * 10/16
= 1500 pounds
Total pounds = 2500 + 1500
= 4000 pounds
From conversion factors;
1 pound = 0.0005
Thus;
4000 pounds = 4000 * 0.0005
= 2 pounds
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write a 250-word description of your final hypothesis statement. describe the independent and dependent variables, and describe how you would objectively define a measurable, testable, replaceable, and meaningful hypothesis. how is your hypothesis measurable? how will you test it?
People cannot tell if infrared lights have been turned on in a dark environment. A good method to test this theory is to ask a group of people if an infrared light had been turned on while they were in a room that was lit by infrared radiation.
The experimenter's measurement of the control variable is the independent variable. Independent and dependent variables are the two different categories. These two things might be related in a cause-and-effect manner. The dependent variable is impacted by changes to the independent variable.
Dependent variables are variables that are examined or evaluated as a part of a study.Participants' test scores would be the dependent variable in a study looking at how tutoring affects test results because that is what is being measured.
Two of the most crucial terms in scientific study are "causing" and "effect. It is essential to recognise the independent and dependent variables.A "complex hypothesis" is one that describes a relationship between two or more variables. This equation, as its name implies, has a minimum of two independent variables and a minimum of two dependent variables. These illustrations can aid in your understanding of a challenging theory.
To find out if a theory holds up under inspection, anyone can conduct an experiment. This technique enables you to explain why a theory is unsupported by the evidence. Experimental data, however, can sometimes be interpreted in a nebulous or unclear way.
The amount of sunshine a plant receives determines how large it will become. The dependent variable changes when the independent variable changes. To get valid findings from this experiment, all other factors must be kept constant or under control.
By comparing the probability of the two independent random variables, you may determine their independence. If the collision has no effect on these variables' probabilities, they are regarded as independent.
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Alton estimated that 240 people attended the band concert. The actual count for attendance was 200 people. Find the percent of error.
8%
17%
20%
40%
Answer: 20% would be the answer
Jahdiel is waxing a hardwood floor that has an area of 4 3/8 square yards. He takes a break after waxing 8/9 of the total area of the floor. What is the area, in square yards, that Jahdiel waxed?
The area of the waxed hardwood floor is 35/9 yards square.
What is the area of the rectangle?The formula for area is equal to the product of the length and breadth of the rectangle. Whereas when we speak about the perimeter of a rectangle, it is equal to the sum of all its four sides.
Given here: Total area of the floor = 4³/₈ yards² and he waxed 8/9 part of the total area.
Now 8/9 of the total area is
Waxed area= 8/9×35/8 ( 4³/₈ =35/8)
=35/9
Thus the area in square units that Jahdiel waxed is 35/9 yards²
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a salesperson is paid $300 per week plus 15% commission on her weekly sales of x dollars. find a linear function that represents her total weekly pay w in terms of x.
Answer:
w = 300 + 0.15x
Step-by-step explanation:
Let x = weekly sales
Since there is a fixed remuneration of $300, that will be a constant in the linear equation
15% = 15/100 = 0.15 in decimal
15% commission on x dollars of sales = 0.15x
Therefore total weekly pay, w, in terms of x
w = 300 + 0.15x
what is the probability that the largest pile has 4 cards, the next largest has 3, the next largest has 2, and the smallest has 1 card?
The probability of having a pile with 4 cards, another pile with 3 cards, another pile with 2 cards, and the smallest pile with 1 card is 17.36%.
The probability of a pile having 4 cards, another pile having 3 cards, another pile having 2 cards, and the smallest pile having 1 card can be calculated using the formula [tex]$\frac{n!}{n_1! n_2! n_3! n_4!}$[/tex]. In this case,
n = 10, n1 = 4, n2 = 3, n3 = 2 and n4 = 1.
Therefore, the probability of this particular combination of piles is [tex]$\frac{10!}{4! 3! 2! 1!} \\= \frac{10 \cdot 9 \cdot 8 \cdot 7 \cdot 6 \cdot 5 \cdot 4 \cdot 3 \cdot 2 \cdot 1}{4 \cdot 3 \cdot 2 \cdot 1 \cdot 4 \cdot 3 \cdot 2 \cdot 1 \cdot 2 \cdot 1} \\ = \frac{5040}{288} = 17.36$[/tex].
This means that the probability of having this particular combination of piles is 17.36%.
The probability of having a pile with 4 cards, another pile with 3 cards, another pile with 2 cards, and the smallest pile with 1 card is 17.36%.
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if the station stocks 600 gallons at the start of the week, what is the probability that thry sell more than 250 gallons
The exact probability cannot be determined without additional information such as the average daily sales rate.
To find the probability of selling more than 250 gallons, we need to find the cumulative distribution function (CDF) of the number of gallons sold, which is the probability of selling a certain amount or less. Since the amount sold follows a Poisson distribution with an average of 200 gallons, the CDF can be calculated using the Poisson cumulative distribution function formula:
P(X <= x) = e^(-μ) * (μ^x) / x!
Where μ is the average number of gallons sold and x is the amount sold. To find the probability of selling more than 250 gallons, we subtract the CDF for 250 gallons or less from 1. This gives us the probability of selling more than 250 gallons.
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how can I make him fall in love ?
There's no guaranteed way to make someone fall in love with you.
What is love?Love is a complex and deeply personal emotion that is influenced by a wide range of factors, including a person's upbringing, life experiences, and individual preferences and values.
The best approach is to simply be yourself, be kind and respectful, and let the relationship develop naturally over time. It's important to understand that you cannot control someone else's feelings, and trying to force or manipulate someone into falling in love with you is unlikely to result in a healthy and happy relationship.
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alumni giving rates for a number of universities, calculated as the number of alumni who donated and the number who did not donate in a given year would represent what kind of variable, nominal, ordinal, or scale? what would be an appropriate graph to depict these data?
The alumni giving rates would represent a nominal variable, as it is a categorical variable representing donors and non-donors.
An appropriate graph to depict these data would be a bar graph. The bar graph would show the number of alumni who donated (the numerator) and the number of alumni who did not donate (the denominator) in a given year. The formula for this calculation would be,
Alumni Giving Rate = (Number of Alumni Donors / Total Number of Alumni) x 100
For example, if 10 alumni donors out of 100 total alumni donated, the alumni giving rate would be 10%. The graph would show the percentage of alumni that donated in a given year.given year. The formula for this calculation would be,
Alumni Giving Rate = (Number of Alumni Donors / Total Number of Alumni) x 100
For example, if 10 alumni donors out of 100 total alumni donated, the alumni giving rate would be 10%. The graph would show the percentage
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hospital waiting room times are normally distributed with a mean of 38.12 minutes and a standard deviation of 8.63 minutes. what is the shortest wait time that would still be in the longest 15% of wait times? homework help: 4ve. determining values from normal distributions based on probabilities (links to an external site.) (2:42) 4dc. using normal distributions and probabilities to determine set values docx group of answer choices 49.18 minutes 47.06 minutes 36.49 minutes 29.18 minutes
The correct response is b. 47.06 minutes. the shortest wait time that would still be in the longest 15% of wait times is 47.06 minutes.
A minute is a unit of time equal to 60 seconds and one-sixtieth of an hour. (See leap second; certain uncommon minutes have 59 or 61 seconds.) The minute is acceptable for use with SI units even though it is not a SI unit. In mathematics, time is defined as a continuous and ongoing sequence of events that occur one after another in the past, present, and future. Time can be used to quantify, contrast, or even rank the length of events or the gaps between them. When you say something has to be done, you are emphatically stating that it should happen or be done right away.
Mean, μ[tex]=38.12[/tex]
Standard deviation,σ[tex]=8.63[/tex]
Waiting times that are longer are worse than those that are shorter. Therefore, the 15% of wait times that are the worst fall into this category. The inferred level of confidence is 0.85.
The z value corresponding to the right tail probability of 0.15 is
[tex]z=1.03[/tex]
But
Z= x−μ/σ
x=Z∗σ+μ
[tex]=1.03∗8.63+38.12=47.06[/tex]
The quickest waiting period that would still fall into the worst 15% of waiting periods is 47.06 minutes.
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5. about what percentage of the area under the normal distribution curve falls within 1 standard deviation above and below the mean? 2 standard deviations? 3 standard deviations?
Approximately 68% of the area under the normal distribution curve falls within 1 standard deviation above and below the mean. This is known as the empirical rule, also called the 68-95-99.7 rule.
Approximately 95% of the area under the normal distribution curve falls within 2 standard deviations above and below the mean.
Approximately 99.7% of the area under the normal distribution curve falls within 3 standard deviations above and below the mean.
It's important to note that these values apply to a standard normal distribution (mean = 0, standard deviation = 1). For any normal distribution with a different mean and standard deviation, you can use the standard score (z-score) to transform the data into the standard normal distribution, and then use the standard normal distribution to find probabilities.
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the meese's company claims that you should find an average of 240 240 orange candies in the jumbo bag of 600 600 candies. the orange candies are normally distributed and have a standard deviation of 6 6 candies. if you sampled a number of these bags and found between 225 225 and 250 250 orange pieces, how would you write this interval as a probability?
The probability of finding between 225 and 250 orange pieces in a sample of jumbo bags is 0.7966.
The probability of finding between 225 and 250 orange pieces in a sample of jumbo bags can be written using the standard normal distribution. This is done by calculating the z-score of the interval between 225 and 250 and then calculating the probability of getting a value between the two given points.
The formula for calculating the z-score is (x-μ)/σ, where x is the value of the interval, μ is the mean (240) and σ is the standard deviation (6). The z-score of the given interval is equal to (-2.5 - (-5))/6 = 0.83.
The probability of getting a value between 225 and 250 is equal to the area under the normal curve between the two given points. This area is equal to the cumulative probability of the z-score of 0.83, which is equal to 0.7966.
Therefore, the probability of finding between 225 and 250 orange pieces in a sample of jumbo bags is 0.7966.
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a manufacturer has nine distinct motors in stock, two of which came from a particular supplier. the motors must be divided among three production lines, with three motors going to each line. if the assignment of motors to lines is random, find the probability that both motors from the particular supplier are assigned to the first line.
The probability that both motors from the particular supplier are assigned to the first line is 1/126.
To explain this further, the numerator of the equation is the number of ways to choose two motors from the nine available, and the denominator is the number of ways to assign the nine motors to the three production lines. The denominator is calculated by multiplying the number of ways to assign three motors to the first line, three motors to the second line, and three motors to the third line. This is why the denominator is 3C2*3C2*3C2, which simplifies to 126.
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The number of visitors at the aquarium was 3 times the number of visitors at the art museum. There were 1,500 visitors at the aquarium. Solve the equation 3m = 1,500 to find the number of visitors m at the art museum.
Answer:
m=500
Step-by-step explanation:
do 1,500 divided by 3
A number that is greater than 2 1/3 and less then 2 2/5
Answer: 2 21/60
Step-by-step explanation:
2 21/60 is greater than 2 and 1/3 because is you multiply each number by 20, you would get 2 20/60. If you take 2/5 and multiply each by 12, you would get 24/60. This means that 2 21/60, 2 22/60, and 2 23/60 would be greater than 2 1/3 and less than 2 2/5.
Simplify the expression.
768x^8y^5
O A. 42³y32²
O B. 2xy² √2x
OC. 4x²y3y
O D. 4x²y3x²y
Answer:
4y^4√3x^2y
Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
Please answer ASAP!!
Suppose your office gives you $200 to buy computer disks. The 550-MB disks cost $7 each. The 650-MB disks cost $8 each. Write the inequality that describes how many of each kind of disk you can buy.
Answer:
7x + 8y ≤ 200
Step-by-step explanation:
Let's say x is the number of 550-MB disks and y is the number of 650-MB disks. Then, the cost of x 550-MB disks is 7x dollars, and the cost of y 650-MB disks is 8y dollars.
The total cost cannot exceed $200, so we have:
7x + 8y ≤ 200
This inequality represents the maximum number of disks of each type that can be bought with the budget of $200.
math math math mathh!
will give brainliest
Answer:
3/7
Step-by-step explanation:
Answer: 3/7
Step-by-step explanation:
Which equation can NOT be used to find the value of x?
Responses
11x + 25x + 9x = 180
11x + 25x + 9x = 180, EndFragment,
11x + 25x = 180
11x + 25x = 180, EndFragment,
11x + 34x = 180
11x + 34x = 180, EndFragment,
36x + 9x = 180
An equation which can not be used to find the value of x include the following: B. 11x + 25x = 180.
What is a triangle?In Mathematics, a triangle can be defined as a two-dimensional (2D) geometric shape that comprises three (3) sides, three (3) vertices and three (3) angles only.
Furthermore, the sum of the angles in a triangle is equal to 180. This ultimately implies that, we would sum up all of the angles as follows;
m∠D + m∠E + m∠F = 180
Substituting the given parameters into the mathematical expression, we have the following;
(11x)° + (25x)° + (9x°) = 180°
(36x)° + (9x°) = 180° or (11x)° + (34x°) = 180°
45x = 180
x = 4.
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Using the triangle sum theorem, the equation that can NOT be used to find x is:
11x + 25x = 180
How to Use the Triangle Sum Theorem to Create an Equation?The triangle sum theorem says that all interior angles of a triangle is always equal to 180 degrees.
Therefore, to solve for the value of x, the equation below can be created by adding all angles in the triangle which gives 180 degrees:
11x + 25x + 9x = 180
36x + 9x = 180
45x = 180
x = 180/45
x = 4
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Determine what would happen to the volume of a square based right pyramid if the original dimensions of the base of 10 feet by 10 feet reduced to one fifth. The height of the pyramid is 12 feet.
The volume of the new square-based right pyramid will be reduced by 96%.
What is volume?Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space occupied within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity.
Given a square-based right pyramid,
and base dimensions are 10 feet by 10 feet
base length = 10 feet
height = 12 feet
the volume of a square-based right pyramid is given by,
V = 1/3b²h
V = 1/3(10)²(12)
V = 400 cubic feet
and if the dimensions of the base are reduced to one-fifth,
The new dimensions for the base is 10/5 feet by 105 feet
base length = 2 feet
and no change in height, h = 12 feet
v = 1/3b²h
v = 1/3(2)²(12)
v = 16 cubic feet
change in volume = V - v
change in volume = 400 - 16
change in volume = 384 cubic feet
percent change in volume = 100*384/400
percent change in volume = 96%
Hence the volume is reduced by 96%.
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a man runs at the speed of 10km how much will take to cover 1,75km how much time does he save if he increases his speed to 10,4km/h the covering the same distance
By increasing his speed to 10.4 km/h, he saves 0.175 - 0.16875 = 0.00625 hours or 0.375 minutes.
What is Unit of Measurement?A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
If a man runs at the speed of 10 km/h, it will take him 1.75 / 10 = 0.175 hours or 10.5 minutes to cover 1.75 km.
If he increases his speed to 10.4 km/h, it will take him 1.75 / 10.4 = 0.16875 hours or 10.13 minutes to cover the same distance.
So, by increasing his speed to 10.4 km/h, he saves 0.175 - 0.16875 = 0.00625 hours or 0.375 minutes.
Hence, by increasing his speed to 10.4 km/h, he saves 0.175 - 0.16875 = 0.00625 hours or 0.375 minutes.
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What is the equation of the function
shown by the graph? Show your work.
-8
-4
Ay
8
4
O
-4
-8
4
8
XA
The equation of the line graph is y = -3/8x + 5/2
Equation of a line graphA line is defined as the shortest distance between two points. The equation of a line in slope intercept form is expressed as:"
y = mx + b where:
m is the slope
b is the intercept
Using the coordinate points (-4, 4) and (4, 1)
Slope = 1-4/4-(-4)
Slope = -3/8
Determine the y-intercept
1 = -3/8(4) + b
1 = -3/2 + b
b = 1 + 3/2
b = 5/2
The required equation of the graph is y= -3/8x + 5/2
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Order these numbers from least to greatest.
4 7/11, 37/8, 4.427, 4.42
The order of the numbers from least to greatest is as follows:
4.427 , 4.42 , 4.325 , 4.63
What is a decimal number?A decimal number is a number that consists of a whole number and a fractional part separated by a point. For example – 3.5, 6.79, 78.32, etc.
Given here: The numbers containing fractions and decimal numbers.
To get a clarity on the magnitude of the numbers, let's convert every fraction to decimal numbers
Thus 4⁷/₁₁=4.63
37/8=4.625
Hence, The order of the numbers from least to greatest is as follows:
4.427 , 4.42 , 4.325 , 4.63
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on a recent shopping trip, you see a sale advertising 5 pairs of socks and 2 pairs of shoes for $100. write an equation using x to represent the cost of socks and y to represent the cost of shoes.
Write an equation using x to represent the cost of socks and y to represent the cost of shoes is 5x+2y=100.
As according algebra, an equations is a statement that illustrates the equivalence of two mathematical expressions. For instance, the two equations 3x + 5 and 14, which are separated by the 'equal' sign, make up the equation 3x + 5 = 14. a formula that illustrates the relationship between the two expressions on either side of a sign. Every equation is a formula. Not all equations have formulas. It is the purpose of equations to be solved for a variable. We analyze formulas. An expression is made up of a number, a variable, or a combination of a number, a variable, and operation symbols. Two expressions are combined into one equation by using the equal symbol.
Let the cost of sock be $x.
Let the cost of shoes be $y.
According to question
[tex]5x+2y=100[/tex]
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what is the answer?
My teacher never explained this to me
The value of sinθ for the condition is 0.822.
What are trigonometric functions?Simply put, trigonometric functions—also referred to as circular functions—are the functions of a triangle's angle. This means that these trig functions provide the relationship between the angles and sides of a triangle. Sine, cosine, tangent, cotangent, secant, and cosecant are the fundamental trigonometric functions.
Given the identity cos²θ + sin²θ = 1
and cosθ = 0.57 where 0 < θ < π/2
the value of θ varies from 0 to π/2 which means θ is in the first quadrant.
substitute the value in identity,
cos²θ + sin²θ = 1
(0.57)² + sin²θ = 1
sin²θ = 1 -0.3249
sinθ = √0.6751
sinθ = 0.8216
or sinθ = 0.822
Hence the value of sinθ is 0.822.
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probability rules 16 parts are examined for defects. it is found that 10 are good, 4 have minor defects, and 2 have major defects. two parts are chosen at random from the 16 without replacement, that is, the first part chosen is not returned to the mix before the second part is chosen. notice, then, that there will be only 15 possible choices for the second part. question at position 12 12 3 points question at position 12 what is the probability that both are good?
The required probability for the parts which are examined for defects are ;
1. Probability of both the parts are good is equal to 0.375.
2. Probability represents exactly one part has major defect is 0.2333.
Total number of parts to be examined for defects = 16
Number of good parts = 10
Number of parts with minor defects = 4
Number of parts with major defects = 2
Number of parts to be chosen at random without replacement = 2
Total number of outcomes = ¹⁶C₂
= (16!) / ( 16 - 2 )!2!
= 120
1. Probability of both the parts to be good
Number of favourable outcomes = ¹⁰C₂
= 10! / (8!)(2!)
= 45
Required Probability = 45 / 120
= 0.375
2. Probability of exactly one major defect
Number of favourable outcomes= ²C₁ × ¹⁴C₁
= 2 × 14
= 28
Required Probability = 28/ 120
= 0.2333
Therefore, the probability of both are good is 0.375 and probability of exactly one major defect is 0.2333.
The above question is incomplete, the complete question is:
'16 parts are examined for defects. It is found that 10 are good, 4 have minor defects, and 2 have major defects. Two parts are chosen at random from the 16 without replacement; that is; the first part chosen is not returned to the mix before the second part is chosen:
1. What is the probability that both parts are good?
2. What is the probability that exactly one part has major defect?'
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Does the frequency distribution appear to have a normal distribution? explain.
Choose the correct answer below.
A. Yes, because the frequencies start low, proceed to one or two high frequencies, then decrease to a low frequency, and the distribution is approximately symmetric.
B. No, because the frequencies start low, proceed to one or two high frequencies, then decrease to a low frequency, and the distribution is not symmetric.
C. Yes, because the frequencies start low, proceed to one or two high frequencies, then increase to a maximum, and the distribution is not symmetric.
D. No, because the frequencies start low, proceed to one or two high frequencies, then decrease to a low frequency, and the distribution is approximately symmetric.
The frequency distribution looks to have a normal distribution because (A) the frequencies start off low, rise to one or two high frequencies, then fall to a low frequency, and the distribution is fairly symmetric.
What is a frequency distribution?Frequency tables or charts are used to represent frequency distributions. Frequency distributions can display the proportion of observations or the actual number of observations that fall inside each range.
The distribution is known as a relative frequency distribution in the latter case.
Frequency distribution that is cumulative.
Frequency distribution relative. distribution of the relative cumulative frequency.
Measurements of position and central tendency (mean, median, mode) Dispersion metrics (range, variance, standard deviation) How much symmetry or asymmetry there is (skewness) The peakedness or flatness (kurtosis).
Because the frequencies begin low, rise to one or two high frequencies, then fall to a low frequency, and the distribution is roughly symmetric, the frequency distribution appears to have a normal distribution.
Therefore, the frequency distribution looks to have a normal distribution because (A) the frequencies start off low, rise to one or two high frequencies, then fall to a low frequency, and the distribution is fairly symmetric.
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