Kiera’s middle school is conducting a survey to determine the winter dance theme. Which of the following best describes a random sample?
1 point
A. All of the students in Mrs. Jackson’s class are surveyed
B. Fifty student’s names from each grade are drawn from a hat
C. Fifty randomly selected staff members are surveyed
D. Fifty randomly selected 7th graders are surveyed

Step-by-step explanation:

f(x)=8(5x-2)

interchanging the role of x&y

x=8(5y-2)

f-1(x)=(x+16)/10

The value of [tex]f^{-1}(x)[/tex] for the given function f(x) = 8(5x - 2) will be  [tex]f^{-1}(x)[/tex] =(x + 16)/40.

A function's inverse can be thought of as a reverse of the function.

For instance, if y = f(x), then x = f will be the inverse (y).

It implies that we must swap x and y in the inverse function.

As per the given,

f(x)=8(5x-2)

Interchange the variable y and x as,

⇒ x = 8(5y - 2)

⇒ x+16=401y

⇒ y = (x+16)/40

Put y =  [tex]f^{-1}(x)[/tex]

[tex]f^{-1}(x)[/tex] =(x + 16)/40

Hence "The value of [tex]f^{-1}(x)[/tex] for the given function f(x) = 8(5x - 2) will be  [tex]f^{-1}(x)[/tex] =(x + 16)/40".

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Answer:

The answer is 48

Step-by-step explanation:

Substrac 180-132 and that's the answer

Answer:

284

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

equations for each:

A)  y - x = 25

B)  y = 25x

C)  x = 25y

D)  y = 25 + x

Answer: 25 PERCENT

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

There are 4 colors, probability of red or yellow:

P(red or yellow) = 2*1/4 = 1/2

And a cube faces 1 to 3:

P(1 to 3) = 3*1/6 = 1/2

Probability of the two events above:

1/2*1/2 = 1/4 = 25%

Answer:the area is 28.27

Step-by-step explanation:

im just that good

Answer:

immma send you the link friend me on hereStep-by-step explanation:

Answer:

Step-by-step explanation:

a) 8x + 4x

b) 3x -8

Answer:

D

Answer:

17

Step-by-step explanation:

2x + 5 + 3x + 90 = 180, 5x=85, x=17

Answer:

Team A: 25 players

Team B: 24 players

Step-by-step explanation:

Team A:

to find the total # of players of the team we need to set up a fraction. 5 out out of an unknown number of players is equal to 1/5, so we set it up as:

[tex]\frac{5}{x} = \frac{1}{5}[/tex]

then we cross multiply to get

x*1 = 5*5

x=25 players

Team B

similarly to Team A

[tex]\frac{3}{x} = \frac{1}{8}[/tex]

cross multiply to get

x*1=3*8

x= 24 players

Answer:

ans no b if you will apply the formula

Step-by-step explanation:

i think it's no b

Answer:

222.33 ft^2

Step-by-step explanation:

The formula to find the area of a triangle with two sides and an included angle is:

A=[tex]\frac{1}{2}[/tex]absin(C),

where a and b are the two sides and C is the angle in between.

Area=[tex]\frac{1}{2}[/tex]*32*19*sin(47)≈222.33

222.33 ft^3

Answer:

4

Step-by-step explanation:

Answer:

x=-8

Step-by-step explanation:

-4x-(8)=24

     +8=+8

-4/-4x=32/-4

x=-8

Answer:

Step-by-step explanation:

Putting value of x = - 3 in the equation

f(x) = x2 - x

f(-3) = (-3)^2 - (-3)

= - 9 + 3

= - 6

Answer:

33500

Step-by-step explanation:

Let x= his wage in 2018

we know that

1.09*x= 36515

Solve for x (by dividing both sides by 1.09)

get 33500

Answer:

88cm^3

Step-by-step explanation:

The volume of a pyramid is the base times height divided by 3. First, we can find the area of the base. We have a right triangle with a base of 8 and a height of 6. The area of a triangle is the base times height divided by 2. This gives us:

8 * 6 ÷ 2 = 24cm^2

We can see that 11cm is the height as it is perpendicular to the base. We can set up an expression from the formula mentioned at the beginning:

11 * 24 ÷ 3 = 88cm^3

The true statement would be A. The theoretical probability of landing on violet is 1/3.

Probability which is derived theoretically, irrespective of what outcome comes, is called theoretical probability.

Probability which is based on the outcomes of experiments performed is called experimental probability.

Suppose we want to find the probability of an event E.

Then, its probability is given as

[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text{Number of total cases}} = \dfrac{n(E)}{n(S)}[/tex]

where favorable cases are those elementary events that belong to E, and total cases are the size of the sample space.

A spinner has 4 equal sections. After spinning the spinner 15 times, the results are recorded in a table.

The true statement would be A. The theoretical probability of landing on violet is 1/3.

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Answer:

B.x<25

Step-by-step explanation:

Let's solve your inequality step-by-step.

3(x+3)>4(x−4)

Step 1: Simplify both sides of the inequality.

3x+9>4x−16

Step 2: Subtract 4x from both sides.

3x+9−4x>4x−16−4x

−x+9>−16

Step 3: Subtract 9 from both sides.

−x+9−9>−16−9

−x>−25

Step 4: Divide both sides by -1.

−x/ −1 > −25/ −1

x<25

Answer:

x<25

Answer:

25%

Step-by-step explanation:

Since there are 24 apples, and 6 are bad, to find the percentage of the bad apples, you do bad apples/total apples

6/24=.25

0.25 is 25%

Answer:

The answer is 2.

Step-by-step explanation:

Answer: 4 3 2 1 anything less than 5

Step-by-step explanation:

Answer:

X has to be bigger than 2 and smaller than 12

Step-by-step explanation:

For a triangle to be possible no side can be bigger than the sum of the other two.

Since 5 + 7 = 12, x has to be smaller than 12.

Since x + 5 => 7, x has to be bigger than 2.

Both conditions written:

2>X>12

Answer:

x = 4

Step-by-step explanation:

3x - 20 = -2x

Add 2x to both sides.

5x - 20 = 0

Add 20 to both sides.

5x = 20

Divide both sides by 5.

x = 4

Answer:

X = 4

Step-by-step explanation:

Answer:

12x-8 ______

Step-by-step explanation:

The second bit, I have no clue. But the first is just simplifying in algebra.

Answer:

the only solution is 0

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

2(x+3)=2x+6

Multiply 2 with the numbers in the parenthesis

2x+6=2x+6

Answer: A

Step-by-step explanation:

nwkwnajnana

Answer: M < -3

.................................................

Step-by-step explanation:

4 - 3m > -5

4 - 3m > (-4 -5)

3m > -9

(3/3)m > (-9/3)

m<-3

Answer:

95800.77

Step-by-step explanation:

Answer:

95800.77

Step-by-step explanation: