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2 years ago

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

Mathematics

1 answer:

finlep [7]2 years ago

5 0

Answer:

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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A 13-foot ladder is leaning against a building, forming a right triangle. The height where the ladder touches the building is se

Sonja [21]

Answer:

20 feet

Step-by-step explanation:

13 foot ladder + 7 feet more = 20 feet

3 0

3 years ago

Find the value of x. If necessary, round your answer to the nearest tenth. O is the center of the circle. The figure is not draw

Aleonysh [2.5K]

Answer:

$x=25$

Step-by-step explanation:

we know that

In this problem

The value of x represent the radius of the circle

Applying the Pythagoras theorem in the right triangle of the figure, you can find the radius of the circle O

see the attached figure to better understand the problem

$x^{2} =20^{2}+15^{2}$

$x^{2} =400+225$

$x^{2} =625$

square root both sides

$x=25$

8 0

2 years ago

Need help thanks!!!!!!

kherson [118]

Answer:

Step-by-step explanation:

$-----------------------------$

$Here's$ $how$ $we$ $solve$ $the$ equation

$-1.2\left(3-x\right)$ = $-1.8$

$-1.2\left(3-1.5\right)$ = $-1.8$

$-3.6+1.2\cdot1.5$ = $-1.8$

$1.2\cdot1.5$ = $-1.8$

$-----------------------------$

<em>Hope this helps! <3</em>

5 0

2 years ago

In which number does the 6 have a value that is 10 times greater than its value in 65?

Juliette [100K]

Answer:

Step-by-step explanation:

6*10 = 60 so which answer choice has a 60 in and that will be D.

8 0

2 years ago

Complete the following proof.

timofeeve [1]

Statement:

1. RS tangent to Circle A and Circle B at points R and S

2. AR ⊥ RS, BS ⊥ RS

3. AR ║ BS

Reason:

1. Given

2. Radius ⊥ to tangent

3. 2 lines ⊥ to same line are ║

100% Correct

~Hope it helps~ :)

4 0

3 years ago

Read 2 more answers