A possible reason for the strong positive correlation is high levels of rainfall. (fourth option)
What is correlation?Correlation is a measure used in statistics to measure the linear relationship that two variables have.
When two variables have a positive correlation, it means that the two variables move in the same direction. In this question, the number of umbrellas sold increase when water levels in streams increase. An reason for this could be that the increased water levels lead to higher rate of rainfall which would lead to people buying more umbrellas.
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58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 80.8° is added to the data, how does the range change?
Answer:
The original data set would be:
57, 58, 61, 66, 71, 77, 82, 91, 95, 100, 102, 105
So to find the range you would do:
105 - 57 which equals 48.
So the range for the original data set would be 48.
The new data set adding 80.8:
57, 58, 61, 66, 71, 77, 80.8, 82, 91, 95, 100, 102, 105
So to find the range for the new data set you would do:
105 - 57 which would still equal 48.
So the range for the new data set would be 48.
The range for the original and new data set stayed the same.
Step-by-step explanation:
You're welcome.
Answer:
The original data set would be:57, 58, 61, 66, 71, 77, 82, 91, 95, 100, 102, 105So to find the range you would do:105 - 57 which equals 48.So the range for the original data set would be 48.The new data set adding 80.8:57, 58, 61, 66, 71, 77, 80.8, 82, 91, 95, 100, 102, 105So to find the range for the new data set you would do:105 - 57 which would still equal 48.So the range for the new data set would be 48.The range for the original and new data set stayed the same.
Step-by-step explanation: hi everybodyyy!!
Ed is on a road trip. He has already traveled 211 miles and is driving at a rate of 63 miles per hour. Which equation could be used to find how many hours, x, Ed has left in his road trip if he is traveling 638 total miles?
Therefore , the solution of the given problem of linear equation comes out to be 683 = 211 + 63x option c is correct.
A linear equation is precisely what?A straightforward regression curve is created using the equation y=mx+b. The y-intercept is m, and the slope is B. The previous sentence is usually referred regarded as a "mathematical formula integrating multiple variables," even though y or y are different parts. Only two variables are present in bivariate linear equations. There are no known solutions to application issues involving linear equations. Y=mx+b.
Here,
Distance already traveled by Ed 211 miles
Also, Ed is driving at a rate of 63 miles per hour.
Distance Speed × Time
Distance traveled by Ed in x hours = 63x
Total distance traveled by Ed= 211 + 63x
Also, total distance traveled by Ed is 638 miles.
Therefore,
=> 683 = 211 + 63x
or
x =7.49
Thus , option c is correct.
Therefore , the solution of the given problem of linear equation comes out to be 683 = 211 + 63x option c is correct.
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The complete question is "Ed is on a road trip. He has already traveled 211 miles and is driving at a rate of 63 miles per hour. Which equation could be used to find how many hours, x, Ed has left in his road trip if he is traveling 638 total miles? A. 211x + 638 = 63 B. 211x + 63 = 638 C. 63x + 211 = 638 D. 63x + 638 = 211"
Cindy is buying necklaces. This table shows how the cost depends on
the number of necklaces purchased.
Necklaces 9 10 11 12
Cost ($) 18 20 22 24
What is the constant of proportionality of this relationship?
(label optional)
Therefore , the solution of the given problem of unitary method comes out to be $2 for one necklace is constant of proportionality of this relationship.
What is a unitary technique, exactly?After determining the size of a small slice, multiply the quantity by two to complete a task using the unitary technique. The simple expression-based unit variable technique aids in separating a coded item from a given group or collection of groups. 40 pens, for instance, would cost 400 Rs (or $1.01 or 400 pounds). It's possible that one country will have total control over the method employed to do this.
Here,
Given :
Necklaces 9 10 11 12
Cost ($) 18 20 22 24
Cost of one necklace = 18/9 =2
$2 for one necklace.
Therefore , the solution of the given problem of unitary method comes out to be $2 for one necklace is constant of proportionality of this relationship.
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g if there is a total of 30 exams and the third quartile has a value of 85, how many test scores are for certain 85 or greater?
7 test scores are 85 or greater according to the given scenario.
The third quartile (Q3) is a measure of central tendency that represents the value separating the lower 75% of a dataset from the upper 25%. In this case, the third quartile has a value of 85, meaning that 75% of the test scores are 85 or lower.
Since there are 30 exams in total, 30 x 0.75 = 22.5 exams have scores of 85 or lower. To find the number of exams with scores of 85 or greater, we subtract the number of exams with scores of 85 or lower from the total number of exams, which is 30 - 22.5 = 7. This means that 7 exams have scores of 85 or greater.
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Please help me with this ?
The supplement of an angle is 36 less than the supplement of the complement of the
angle. What is the measure of the angle? Show your work as clearly as you can!
The measure of the angle is 54 degrees.
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
Let the measure of the angle "x".
The complement of the angle is 90 - x.
The supplement of the complement is 180 - (90 - x) = 90 + x.
The supplement of the angle is 36 less than the supplement of the complement of the angle, so 90 + x - 36 = x.
90 + x - 36 = x
54 = x
So the measure of the angle is 54 degrees.
Hence, the measure of the angle is 54 degrees.
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Nolan is following his family's macaroni and cheese recipe. The recipe calls for 6 cups of shredded
cheese and 4 tablespoons of milk. He wants to make a smaller batch, so he uses only 3 cups of
shredded cheese.
How much milk does Nolan need for this smaller batch?
tablespoons
Answer:2 tablespoons of milk
Step-by-step explanation:
If nolan divides 6 by 2 he gets 3 cups of shredded cheese and to get the same results he would have to divide the milk portion too. 4/2 is 2 so he would need 2 tablespoons of milk.
PLEASE I NEEED HELLLPPPPP ON THUS
Answer:
B
Step-by-step explanation:
Answer:
A. 37/100
Step-by-step explanation:
1. common denominator. so make 3/10 into 30/100.
2. subtract 30/100 from 67/100.
the answer is 37/100
on day 0, there are 500 barteria in a dish. the number of bacteria doubles every day after that. how many bacteria(y) are there after x days?
The number of bacteria that represents y at the end of x days will be [tex]y=(500)(2)^{x}[/tex]
As per the given data on the day 0, there are 500 bacteria in a dish.
The number of bacteria that doubles every day after that.
Here we have to determine that how many bacteria which represent y are there after x number of days.
Therefore, the number of bacteria after every day will form a geometric progression (G.P) with the first term as a = 500 and the common ratio as r = 2
Therefore [tex]\mathrm{a}_3=\mathrm{ar}^2=(500)(2)^2=2000[/tex]
Therefore, the number of bacteria at the end of 2nd day will be 480
[tex]$a_5=a^4=(500)(2)^4=8000[/tex]
And [tex]$\mathrm{a}_{\mathrm{n}+1}=\mathrm{ar}^{\mathrm{n}}[/tex]
[tex]$\mathrm{a}_{\mathrm{n}+1}[/tex] represents y and n represents x
[tex]y=(500)(2)^{\mathrm{x}}[/tex]
Thus the number of bacteria at the end of x days will be [tex](500)(2)^{x}$=y[/tex]
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pls help plssssss
it would really help
The size of the angle YZX is 19.7 degrees.
How to find the angles of a right triangle?A right triangle is a triangle that has one of its angles as 90 degrees. The sum of angles in a triangle is 180 degrees.
Therefore, let's find the angle YZX in the right triangle as follows:
Hence using trigonometric ratios,
sin ∠Z = opposite / hypotenuse
sin ∠Z = 7.5 / 22.3
sin ∠Z = 0.33632286995
∠Z = sin⁻¹ 0.33632286995
∠Z = 19.6530010139
Therefore,
∠YZX = 19.7 degrees.
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resultant rotation angle value?
The angle of rotation if an image is the result of a composition of two reflections across perpendicular lines is 180 degrees
How to determine the angle of rotation of reflection os perpendicular line ?Rotation and reflection are forms of transformation as seen in mathematics. The two are related in some forms.
here, we have,
When a reflection is done on a plane perpendicular to the preimage the image is reflected at the perpendicular plane. This is equal to rotation of an angle 90 degrees.
When the reflection is continued again across the perpendicular line, another reflection is noticed and similar rotation however in this case with respect to the initial image, the rotation is now 180 degrees.
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6. the sun of the digits of a certain two digit number is 6. if the original number is subtracted from the number formed by interchanging the digits, the result is 36. find the original number
let the unit place digit be x and tens place digit be y, therefore, the original number is 15.
then the two-digit number will be 10y + x
and the number formed by interchanging the unit place and tens place digits will be 10x + y
according to the first condition given in the qs i.e, the sum of two digits in the number is 6 that is
x + y = 6
Also given that, if the original number is subtracted from the number formed by interchanging the digits, the result is 36.
i.e 10y +x - 10x -y = 36
9(y-x) = 36
y-x = 36/9
y-x = 4 and x+y = 6
solving both the above equations we will get ,
x= 1 and y = 5
since original number is 10y + x = 10(1) + 5
therefore, the original number is 15.
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the ratio of the measures of the three angles in a triangle is 14:5:11.Use the variable X as the uknown.Solve for X
The value of 'x' in the ratio 14 : 5 : 11 is 6.
What is a triangle?A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.
We know the sum of all the interior angles in a triangle is 180°.
Given, The angles are in the ratio 14 : 5 : 11.
Let, 'x' be the ratio multiplier.
Therefore, 14x + 5x + 11x = 180.
30x = 180.
x = 180/30.
x = 6.
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luann predicted that if a certain number of vehicles passed her by, 42 of them would be suvs. what was that certain number of vehicles she had in mind?
The number of vehicles Luann had in mind is 135.
The calculation of the number of vehicles Luann had in mind is based on the ratio of the number of predicted SUVs to the number of predicted vehicles, and the actual number of SUVs seen by Luann.
First, we know that for every 45 vehicles that pass by, 14 are expected to be SUVs. This means that 14/45 of the vehicles are expected to be SUVs.
Next, we know that Luann saw 42 SUVs pass by. To find the actual number of vehicles that have passed by, we set up a proportion:
14/45 = 42/actual vehicles.We can then solve for the actual number of vehicles by cross-multiplying and dividing:
45 * 42 = 14 * actual vehiclesactual vehicles = 45 * 42 / 14 = 135.So the number of vehicles Luann had in mind is 135.
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Complete Question:
Luann predicted that if a certain number of vehicles passed by her by, 42 of them would be SUVs. What was the certain number of vehicles she had in mind?
Types of Vehicles | Number of vehicles
Car | 6
Truck | 10
SUv | 14
Minivan | 15
someone is interested in studying property tax rates in the united states. he randomly selects 25 homes and looks up their property tax rate. he is interested in studying the center, shape and spread of the data. what type of graph does he make?
He is interested in studying the center, shape and spread of the data. He make histogram graph because it is the best since it demonstrates how the population is distributed.
A histogram is a graph that displays the frequency distribution of a small number of data points for a single variable. Frequently, histograms divide data into several "bins" or "range groups" and tally how many data points are in each bin.
A bar graph uses bars, columns, or strips to display facts, amounts, or numbers in a visual way.
To demonstrate how so much one factor influences others, scatter plots are used to display data points on the a vertical and horizontal axis.
A pie chart, also known as a circle chart, can be used to summarize a set of nominal data or to show the various values of a particular variable.
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The complete question is:
Someone is interested in studying property tax rates in the United States. He randomly selects 25 homes and looks up their property tax rate. He is interested in studying the center, shape and spread of the data. What type of graph does he make?
A. Histogram
B. Bar graphs
C. Scatterplots
D. Pie charts
A function that consists of 5 connected line segments. From left to right, segment 1 begins at the origin and is horizontal, segment 2 goes up, segment 3 goes down, segment 4 goes back up, and segment 5 is horizontal. Select all the intervals over which this function is increasing. Interval 1 Interval 2 Interval 3 Interval 4 Interval 5
Answer:
Step-by-step explanation:19
You can't solve this question without further information of length and slope
Mohamed and Zayed are playing DMZ on Warzone 2.0, during 1 match, Mohamed completes 6 more objectives than Zayed. Together they completed 14 objectives. Write and solve and equation to determine how many objectives each of them completed, write only your answer for each in the boxes below.
Answer:
Mohamed: 8 objectives
Zayed: 6 objectives
7 1/4 rounded to nearest 1/4 hour
The required round of 7 /14 to the nearest 1/4 is itself 7 1/4.
What is rounding of values?The rounding of values is superseding a number with an inexact value that has a more ephemeral, more uncomplicated, or more direct representation.
Here,
7 1/4 rounded to the nearest 1/4 hour is 7 1/4. Rounding to the nearest 1/4 hour means finding the closest 1/4 hour mark, which in this case is 7 1/4 itself.
Thus, the required round of 7 /14 to nearest 1/4 is itself 7 1/4.
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HELP pls will mark you the brainliest. Show your work.
Answer:
A
Step-by-step explanation:
The answers you have are in (x, y) form
Looking at first answer, -3 is the x and -1/2 is the y. We plug in the -3 as the x in each equation and hope to get -1/2.
So for (-3, -1/2)
y = 1/2(-3) + 1 = -3/2 + 1 = -1/2
Now the other equation
y = 3/2(-3) + 4 = -9/2 + 4 = -1/2
Since we got -1/2 as both. which is also the Y coordinate, this must be the answer. If it wasn't, we could keep going through the answer choices doing the same method.
suppose that for budget planning purposes the city in exercise 12 needs a better estimate of the mean daily income from parking fees. a) someone suggests that the city use its data to create a 95% confidence interval instead of the 90% interval first created. how would this interval be better for the city?
A 95% confidence interval is wider than a 90% confidence interval and so provides a better estimate of the population mean.
A confidence interval represents the range of values within which the population mean is estimated to lie with a certain degree of confidence. The wider the interval, the more certain we can be that the population mean lies within it. In other words, a 95% confidence interval provides a better estimate of the population mean than a 90% interval because it is wider and therefore more likely to contain the true population mean.
This increased accuracy is particularly important for the city in their budget planning as it allows them to make more informed decisions based on a more reliable estimate of their expected daily income from parking fees.
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Pls help!
Marco received a gift card. He used it to buy 2 bike lights for $11.50 each. Then he bought a handlebar bag for $18.35. After these purchases, he had $3.65 left on the card.
How much money was on the gift card when Marco received it?
Marco had $ on the card to begin with.
Answer:
Marco had 45 dollars on the card when he received it.
Step-by-step explanation:
two histograms share a horizontal axis indicating the range of the data in the two samples. the first histogram is entirely to the left of the second. which statements are true?
The two statements that are true are that the two histograms have different ranges of data and different distributions of data.
The first statement that is true is that the two histograms have different ranges of data. To calculate the difference in range, you can use the formula Range = Maximum - Minimum, where Maximum is the largest value in the sample, and Minimum is the smallest value in the sample. This means that if the maximum value of the first histogram is, say, 10 and the minimum value of the second histogram is 15, the difference in range between the two histograms is 5. The second statement that is true is that the two histograms have different distributions of data. This can be determined by looking at the shape of the histograms. For example, if the first histogram is clustered around a certain range of values, while the second histogram is more evenly distributed, this would indicate two different distributions.
So, in summary, the two statements that are true are that the two histograms have different ranges of data and different distributions of data.
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Every rectangle with four congruent sides is a square. true or false
Answer: false
Step-by-step explanation:
Find the slope number 11
to get the slope of any straight line, we simply need two points off of it, let's use those two in the picture below.
[tex](\stackrel{x_1}{-2}~,~\stackrel{y_1}{-5})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{3}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{3}-\stackrel{y1}{(-5)}}}{\underset{\textit{\large run}} {\underset{x_2}{4}-\underset{x_1}{(-2)}}} \implies \cfrac{3 +5}{4 +2} \implies \cfrac{ 8 }{ 6 } \implies \cfrac{4 }{ 3 }[/tex]
Graph the first four terms in the sequence 12, 6, 3, 1
According to the information, the correct way to graph this sequence is by putting the numbers 1, 2, 3, 4 as x coordinates... Then the coordinates would be (1,12), (2,6), (3,3 ) and (4,1).
How to graph the sequence?To graph the sequence we must establish an additional coordinate for each of the values. In this case we can put the value of 1, 2, 3, 4...
According to the above, the coordinates would be as follows:
(1,12)(2,6)(3,3)(4.1)Additionally, this graph would be a geometric sequence because it expresses values that are decreasing and is not a constant.
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You and 5 friends are going to see a movie. Each movie ticket costs $8. Complete the equation to show which operation to use and how much all the movie tickets will cost. Then complete the sentence to explain your reasoning.
Answer:
your total is $48
Step-by-step explanation:
8*6 (you plus five friends so six tickets and 8 dollars per ticket)
8 times 6 is 48
(Systems of Linear Equations LC) How many solutions does the system of linear equations represented in the graph have? Coordinate plane with one line that passes through the points 0 comma 3 and 3 comma 4 and another line that passes through the points 0 comma negative 2 and 3 comma negative 1. One solution at (−2, 0) One solution at (0, −2) No solution Infinitely many solutions
The solution is Option C.
The system of equations have no solutions as they are parallel lines
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of first line be A
Let the equation of second line be B
Let the first point be P ( 0 , 3 )
Let the second point be Q ( 3 , 4 )
Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Substituting the values in the equation , we get
Slope m = ( 4 - 3 ) / ( 3 - 0 )
Slope m = 1/3
Now , the equation of line A is
y - y₁ = m ( x - x₁ )
y - 3 = ( 1/3 ) ( x - 0 )
y - 3 = ( 1/3 )x
Adding 3 on both sides of the equation , we get
y = ( 1/3 )x + 3 be equation (1)
And , the third point is R ( 0 , -2 )
Let the fourth point be S ( 3 , -1 )
Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Substituting the values in the equation , we get
Slope m = ( -1 - ( -2 ) ) / ( 3 - 0 )
Slope m = 1/3
Now , the equation of line A is
y - y₁ = m ( x - x₁ )
y - ( -2 ) = ( 1/3 ) ( x - 0 )
y + 2 = ( 1/3 )x
Subtracting 2 on both sides of the equation , we get
y = ( 1/3 )x - 2 be equation (1)
Hence , the equations have the same slope as m = 1/3 and they are parallel lines
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What is the area of the shape for the quilt block?
94 1/2 in²
166 1/2 in²
189 in²
333 In²
Answer:
166 1/2 in²
Step-by-step explanation:
The area of the quilt block= area of rectangel ABCD + area of right angled triangle AEF
=length*breath + 1/2*base* height
=16*9+1/2*6*7.5
=166.5 which also means 166 1/2 in²
Evaluate the expression if: a= 5 and b= -4
-20a+10b-15
eeeeeeeeeeeeeeeee3eeeeee
Answer:
23e+3
Step-by-step explanation:
Answer:
Step-by-step explanation:
What is 22.3 × 1.8 ?
Answer:
40.14
Step-by-step explanation:
Answer: 40.14
Step-by-step explanation:
40.14