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2 years ago

Find the range of the function represented by the list of ordered pairs below.

Mathematics

1 answer:

balandron [24]2 years ago

7 0

What????????????? Im not speake inglês

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5. (04.07)

torisob [31]

Answer:

D) f(x) = 4(3)^x

Step-by-step explanation:

Plug y in for f(x) and plug in the points so if they are both true in one equation then it is correct.

y = 3(4)^x

36 = 3(4)^2

36 = 3(16)

This is already incorrect

y = 4(3)^-x

36 = 4(3)^-2

36 = 4(1/16)

36 ≠ 1/4

This is incorrect

I'm going to skip C because I believe D is correct:

y = 4(3)^x

36 = 4(3)^2

36 = 4(9)

36 = 36

Now we plug in the other points

y = 4(3)^x

12 = 4(3)^1

12 = 4(3)

12 = 12

4 0

2 years ago

F(x) = -x^2-20 find f(9)

Ivanshal [37]

Answer:

f ( x ) = - 101

Step-by-step explanation:

Step 1:

f ( x ) = - x² - 20 Function

Step 2:

f ( x ) = - 9² - 20 Substitute x

Step 3:

f ( x ) = - 81 - 20 Exponents

Answer:

f ( x ) = - 101 Subtract

Hope This Helps :)

5 0

2 years ago

- 3/5 x = 15 Solve this question please

Triss [41]

Answer:

3/5x = 15

multiply both sides by 5

This cancels out denominator of fraction =

3x = 75

x = 25

8 0

2 years ago

Read 2 more answers

A cylinder has diameter of 4ft and a height of 9ft. Explain whether halving the diameter has the same effect on the surface area

elena55 [62]

Answer:

See Below

Step-by-step explanation:

The surface area of cylinder is given by the formula:

$SA=2\pi r^2 + 2\pi r h$

Where

r is radius ( diameter is 4, so radius is 4/2 = 2)

h is height ( h = 9)

Lets find original surface are:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (2)^2 + 2\pi (2) (9)\\SA=8\pi +36\pi\\SA=44\pi$

Halving diameter:

diameter would be 4/2 = 2, so radius would be 2/2 = 1

So, SA would be:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (1)^2 + 2\pi (1) (9)\\SA=2\pi +18\pi\\SA=20\pi$

Halving height:

Height is 9, halving would make it 9/2 = 4.5

Now, calculating new SA:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (2)^2 + 2\pi (2) (4.5)\\SA=8\pi + 18\pi\\SA= 26\pi$

Original SA is $44\pi$ ,

Halving diameter makes it $20\pi$

Halving height makes it $26\pi$

So, halving diameter does not have same effect as halving height.

5 0

2 years ago

What is the perimeter of the triangle?

jolli1 [7]

P=a+b+c hope it helps

3 0

1 year ago