This is a test to see how reliable the source is. (AKA if the answer is correct and how long it takes)

7x+9-2x+8^2-41>2

[tex]10~~ : ~~45\implies \cfrac{10}{45}\implies \cfrac{5\cdot 2}{5\cdot 9}\implies \cfrac{5}{5}\cdot \cfrac{2}{9}\implies \cfrac{2}{9}\implies 2~~ : ~~9[/tex]

Answer:

Below

Step-by-step explanation:

The ENTIRE perimeter of a circle is  pi * d

 a semi circle circumference is 1/2 of this  1/2 pi * d   PLUS the diameter line

               1/2 pi * ( 2 mm)  + 2mm = 5.14 mm

The two numbers are 7/6 and 5 when the sum of two numbers is 3 more than four times the first number.

Let's call the two numbers x and y, where x is the first number and y is the second number.

The problem gives us two equations that relate the two numbers:

[tex]x + y = 3 + 4x\\y - x = 2y - 10[/tex]

We can substitute the expression for y from equation 1 into equation 2:

[tex]y - x = 2(3 + 4x) - 10[/tex]

Expanding the right side and simplifying, we get:

[tex]y - x = 6 + 8x - 10\\y - x = 8x - 4[/tex]

Adding x to both sides:

[tex]y = 9x - 4[/tex]

Substituting this expression for y into equation 1:

[tex]x + (9x - 4) = 3 + 4x[/tex]

Expanding and simplifying the right side:

[tex]10x - 4 = 3 + 4x[/tex]

Subtracting 4x from both sides:

[tex]6x - 4 = 3[/tex]

Adding 4 to both sides:

[tex]6x = 7[/tex]

Dividing both sides by 6:

[tex]x = 7/6[/tex]

Substituting this value of x back into the expression for y:

[tex]y = 9x - 4 = 9 * (7/6) - 4 = 63/6 - 4 = 9 - 4 = 5[/tex]

So the two numbers are 7/6 and 5.

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Answer:

-12

Step-by-step explanation:

Answer: -12

Step-by-step Explanation: 2 times -3= -6, -6 times 2= -12

There are a total of 10 different combinations for each of the four-letter words.

If reiteration is permitted

There are 10 possible combinations for each of the four letters, making a total of 104 four-letter words.

If reiteration is prohibited

The first letter has 10 potential outcomes, followed by 9 for the second, 8 for the third, and 8 for the fourth, for a total of 10 * 9 * 8 * 7 outcomes.

If the first letter must be A, there is only one alternative for that letter and ten possibilities for each of the following three letters, for a total of 103.

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The constant of variation is 62.5 and this means that the bus travel 62.5 miles per hour.

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

We have to given that;

The given relation is,

⇒ y = 62.5x

Where, y represent distance in mile and x represent the time in hour.

We know that;

The proportional relation is defined as;

⇒ y = kx

Where, k is constant of variation.

Hence, By comparing,

The constant of variation is 62.5 and this means that the bus travel 62.5 miles per hour.

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The value of 'x' in the expression (1/2)(4x - 5) + 5/2 = 10 is, x = 5.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, An expression  (1/2)(4x - 5) + 5/2 = 10.

(1/2)(4x - 5) = 10 - 5/2.

(1/2)(4x - 5) = (20 - 5)/2.

(1/2)(4x - 5) = 15/2. ('2' on both sides of the denominator cancels)

4x - 5 = 15.

4x = 20.

x = 5.

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Answer:

(5 , -6) I believe this is the answer because I tried it

The area of triangle NOP is given as follows:

1416 cm².

The area of a triangle, given two side lengths and the angle between them, is given by the multiplication of the side lengths and the sine of the angle between them.

The parameters for this problem are given as follows:

Hence the area of the triangle is given as follows:

A = 92 x 23 x sine of 138 degrees

A = 1416 cm².

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Tthe population of the colony after 2 hours is 64a

From the question, we have the following parameters that can be used in our computation:

Rate = doubles every 20 minutes

Represent the initial population with a

So, we have the following representation

f(t) = a(2)^t

Where t is the number of 20 minutes in the time

The time is given as 2 hours

So, we have

t = 2 hours/20 minutes

Evaluate

t = 6

The function becomes

f(t) = a(2)^6

Evaluate

f(t) = 64a

hence, the population is 64a

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Part 1:

Domain = (-2, -1, 0, 2)

Range = (-4, -2, 2)

Part 2:

Domain = (-4, -2, 1, 4)

Range = (-2, 1, 4)

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

Part 1:

From the function figure:

All the x values are domain and all the y values are codomain.

All the y values that are an image of an x value are called the range.

So,

Domain = (-2, -1, 0, 2)

Range = (-4, -2, 2)

Part 2:

From the table:

All the x values are domain and all the y values are range.

So,

Domain = (-4, -2, 1, 4)

Range = (-2, 1, 4)

Thus,

The domain and range are given above.

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Answer:

The total average decrease in the stock after 8 weeks is -10 - 8 = -2 dollars.

Step-by-step explanation:

Answer:

you count from the top to the bottem

Answer:

2a+4+b+d

Step-by-step explanation:

a+a= 2a

4+0=4

b+0=b

c+0=c

d+0=c

Answer:

x= 10.2 when rounded to nearest tenth

[tex]~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] ~\dotfill\\\\ \left( \cfrac{1}{3^2} \right)^{-1}\implies \left( \cfrac{3^2}{1} \right)^{+1}\implies 3^2\implies 9[/tex]

The coordinates of another point with the same y-value are (10, 10).

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

f(x) = |x|

For (-10, 10)

i.e,

x = -10

f(-10) = |-10| = 10

So,

(-10, 10) is on the graph.

Now,

For x = 10,

f(10) = |10| = 10

This means,

(10, 10) is also on the graph.

We see that,

(-10, 10) and (10, 10) has the same y-value.

Thus,

The coordinates of another point are (10, 10).

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Answer: The Y intercept is 50 and it represents where the temperature starts.

Step-by-step explanation: The Y intercept is basically where the line is touching on the y line.

Answer:

[tex]\frac{1}{9}[/tex] or 11.11%

Step-by-step explanation:

P(A) = probability of an event

f = favored outcomes

N = number of total outcomes

[tex]P(A)=\frac{f}{N}[/tex]

In this equation there is one favored income, when the first counter is blue and the second one is green. There are also nine total outcomes. This means that the equation necessary is:

[tex]P(A)=\frac{1}{9}[/tex]

The probability that Mike takes a blue counter and then Ellie takes a green counter is [tex]\frac{1}{9}[/tex] or around 11.11%

Let's call the number of hours spent on a job as "h". Then, the fee charged to the client can be represented as a function of "h" as follows:

f(h) = 30h + 40

This means that for any value of "h" (representing the number of hours spent on a job), the function f(h) gives the corresponding fee charged to the client.

Function notation is a mathematical notation used to express a mathematical function, which assigns a unique output to each input of a set. The function is represented by a symbol, usually a letter (such as f or g), followed by a variable in parentheses.

For example, the function f(x) = x^2 assigns the value x^2 to the input x. The input is usually referred to as the argument of the function. The function notation is commonly used in calculus, algebra, and other branches of mathematics.

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Step-by-step explanation:

So it's...

[tex] \frac{5\pi}{4} - \frac{\pi}{4} [/tex]

Since the denominators are the same (both of the fractions have 4 on the bottom), you can do simple subtraction to the top while keeping the bottom 4

[tex]5\pi - \pi = 4\pi[/tex]

Which means the answer is

[tex] \frac{4\pi}{4} [/tex]

The length of the stone walkway would be 536.64 inches.

To find the length of the stone walkway, the landscaper needs to determine the length of the diagonal of the rectangular lawn.

The length of the diagonal can be calculated using the Pythagorean theorem:

[tex]d^2 = l^2 + w^2[/tex]

Where d is the length of the diagonal, l is the length of the rectangle, and w is the width of the rectangle.

So to find the length of the walkway, the landscaper would need to know the length and width of the rectangular lawn.

Suppose a landscaper wants to place a stone walkway from one corner of a rectangular lawn that is 40 feet long and 20 feet wide to the opposite corner.

Using the Pythagorean theorem, we can calculate the length of the diagonal:

[tex]d^2 = 40^2 + 20^2[/tex]

[tex]d^2 = 1600 + 400[/tex]

[tex]d^2 = 2000[/tex]

[tex]d =\sqrt{2000}[/tex]

[tex]d = 44.72 feet[/tex]

Rounding to the nearest inch, the length of the stone walkway would be 44.72 * 12 = 536.64 inches, which can be rounded to 536 inches.

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The number of permutations for the remaining hours is 6 hours.

Permutation is a mathematical concept that refers to the arrangement of objects or elements in a specific order. It is used to find the number of possible combinations of a given set of elements.

Let's assume that she takes exactly three hours of classes on Monday, two on Thursday, and one on Friday. Now, we have three hours left for Tuesday, Wednesday, and the rest of the week.

To find the number of permutations for the remaining hours, we can use the permutation formula, which is:

P(n, r) = n! / (n-r)!

Where n is the total number of items and r is the number of items being selected. In this case, n = 3 (hours left for Tuesday, Wednesday, and the rest of the week) and r = 3 (hours being selected).

So, the number of permutations for the remaining hours is:

P(3, 3) = 3! / (3-3)! = 6

Now, we have found the number of permutations for the remaining hours.

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The equation solved for the variable y is:

y = 4 - x

To do this, we need to isolate the variable y in the given equation.

We have the equation:

3y -2 = 10 - 3x

Adding 2 in both sides we will get:

3y -2 +2 = 10 - 3x + 2

3y = 12 - 3x

Now we can divide both sides by 3 to get:

3y/3 = (12 - 3x)/3

y = 4 - x

That is the equation solved for y.

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There are 45 possible choices for the five members.

There are ten people on the debate team, but only two of them can be in position 5. Positions 1 through 4 can be filled by any 10 members. Using the combination formula nCr, where n is the total number of items and r is the number of items chosen from that set, we can determine the number of ways to select these five members.

In this instance, we have 10C2, which simplifies to 10!/(2!(10-2)!)) or 10 items chosen from a set of 10. This can be reduced to 45, or 109/2. As a result, there are 45 ways to select the five debate team members.

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Answer:

93

Step-by-step explanation:

triangle = 1/2*5*6=15

B = 9*6=54

C = 4*6=24

total =54+24+15 = 93

Above 700: 5%, Above 550: 34%, Between 400 and 550: 26%, Below 400: 16%, Below 550: 55%.

To calculate the fraction of students who scored above 700, we can use the z-score formula, which is (x - μ) / σ, where x is the score, μ is the mean, and σ is the standard deviation. In this case, μ = 500 and σ = 100. Plugging in 700 for x, we get (700 - 500) / 100 = 2. This corresponds to a z-score of 2, which is .9772, meaning that 97.72% of the scores are below 700. This means that 5% are above 700. To calculate the fraction of students who scored above 550, we can use the same formula, but with 550 for x. This gives us (550 - 500) / 100 = .5, which corresponds to a z-score of .5, meaning that 84% of the scores are below 550. This means that 34% are above 550. To calculate the fraction of students who scored between 400 and 550, we can subtract the z-score of 400 from that of 550. This gives us .84 - .2 = .64, meaning that 64% of the scores are below 550. This means that 26% are between 400 and 550.

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The equation for the Bowler world is c = $1.1g + $5,

The equation for the Lucky spares is c = $1.5g + $3.

and the cost is the same for 5 games and the cost is $10.5.

Each term in a linear equation has an exponent of 1, and when this algebraic equation is graphed, it always produces a straight line. It is called a "linear equation" for this reason.

Both linear equations with one variable and those with two variables exist.

Given the Bowler, World charges $5.00 to rent shoes and $1.10 per game. Lucky Spares charges $3.00 for shoes and $1.50 per game.

Part A

using g for the number of games and c for the cost

for Bowler World

charges for shoes = $5

cost for per game = $1.1

cost for g games = $1.1g

total cost c =  $1.1g + $5 ..........(1)

for Lucky spares

charges for shoes = $3

cost for per game = $1.5

cost for g games = $1.5g

total cost c =  $1.5g + $3 ..........(2)

B. if the cost used in both places is equal then equation 1 equals equation 2

so $1.1g + $5 = $1.5g + $3

1.5g - 1.1g = 5 - 3

0.4g = 2

g = 2/0.4

g = 5

and cost is c =  $1.1g + $5

c = 1.1*5  + 5

c = 5.5 + 5

c = $10.5

Hence equations are  c =  $1.1g + $5 and  c =  $1.5g + $3,

and the cost is same for 5 games and the cost is $10.5.

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