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3 years ago

9

Let f(x) = 2x2 and g(x) = x2-1. Then f(g(2)) =

1 answer:

finlep [7]3 years ago

5 0

Answer:

18

Step-by-step explanation:

Evaluate g(2), then substitute the value obtained into f(x)

g(2) = 2² - 1 = 4 - 1 = 3 , then

f(3) = 2(3)² = 2(9) = 18

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Question #3) 3 times of 5 feet inch=____feet ____ inches

Kamila [148]

I assume that you mean 3 times 5 feet means how many feet and inches

so the answer is 5 feet and <u>blank </u> inches

or 12 inch in 1 feet so 12 times 5=60 so 60 inches

or you may have forgotton to put a number before the first inch word like 5 feet <u>3</u> inch

6 0

3 years ago

The measure of angle A is 15°, and the length of side

dangina [55]

Answer:

Part 1) $AB=30.9\ units$

Part 2) $AC=29.9\ units$

Step-by-step explanation:

The picture of the question in the attached figure

Part 1

Find the length side AB

we know that

$sin(A)=\frac{BC}{AB}$ ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

$sin(15^o)=\frac{8}{AB}$

solve for AB

$AB=\frac{8}{sin(15^o)}=30.9\ units$

Part 2

Find the length side AC

we know that

$tan(A)=\frac{BC}{AC}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the given values

$tan(15^o)=\frac{8}{AC}$

solve for AC

$AC=\frac{8}{tan(15^o)}=29.9\ units$

8 0

3 years ago

If a square has a side length of 5cm what would the area be

EastWind [94]

Answer:

25 cm squared

Step-by-step explanation:

To find area we multiply the side lengths

5cm x 5cm=25 cm squared

3 0

3 years ago

How do you solve 2y-7y=5

scZoUnD [109]

Answer:

$y=-1$

Step-by-step explanation:

1. Combine like terms

2y-7y = -5y

-5y=5

2. Divide by -5 and the answer is $y=-1$

6 0

3 years ago

60% of a number is 90 what is the number?

kramer

Answer:

The number is 150

Step-by-step explanation:

Is means equals and of means multiply

60 % * N = 90

.60 N = 90

Divide each side by .6

N = 90/.6

N =150

5 0

2 years ago

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