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3 years ago

6

a construction worker has a ladder against the side of a building. the building is 10 feet tall, and the ladder is 15 feet long.

how far is the base of the ladder from the building

1 answer:

AveGali [126]3 years ago

4 0

Answer:

5

Step-by-step explanation:

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May I know why is the answer 1/2? Any idea <br><br> Thank you!

ElenaW [278]

let's put value of t in equation.

x = 2√t

x = 2√y

x/2 = √y

(x/2)^2 = y

y = x^2 /4

now let's differentiate it with respect to x.

dy/dx = 2x/4 = x/2

differentiating again wrt to x

d^2y/dx^2 = 1/2

8 0

3 years ago

PLEASE HELP FAST!! |x+5|>-1, what is x (answer in x equals to)

Daniel [21]

$(x+5)>-1 or -(x+5)>-1$

$x>-1-5 or x$

$x>-6 or x$

This gives us the union of two sets

$(-∞,-4) U (-6,+∞)$

$=(-∞,+∞)$

x belongs to all real numbers

7 0

3 years ago

How to find midpoint of (-3,2) (1,3)

sasho [114]

Answer:

(-1,2.5)

Step-by-step explanation:

8 0

3 years ago

Which of the following is an example of the distributive property?

lukranit [14]

Answer:

option 3: 3(10+5) = 30+15

Step-by-step explanation:

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4 years ago

Find the inverse function of h(x) = -2/3x + 6.

nalin [4]

Answer:

$h^{-1}(x)=-\frac{3}{2}x+9$

Step-by-step explanation:

To find inverse of a function, follow the steps below:

1. replace h(x) with y

2. Interchange x and y

3. Solve for the new y

4. Replace y to $h^{-1}(x)$ (this is the inverse function)

<u>Step 1:</u> y = -2/3x+6

<u>Step 2:</u> x = -2/3y+6

<u>Step 3:</u>

$x=-\frac{2}{3}y+6\\\frac{2}{3}y=-x+6\\y=\frac{-x}{\frac{2}{3}}+\frac{6}{\frac{2}{3}}\\y=-\frac{3}{2}x+9$

<u>Step 4:</u>

$y=-\frac{3}{2}x+9\\h^{-1}(x)=-\frac{3}{2}x+9$

This is the inverse function.

3 0

3 years ago

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