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3 years ago

What is the diameter of a trampoline with an area of 49 square ft

1 answer:

7 0

Using the formula A = πr^2

49 = 3.14r^2
Divide both sides by 3.14

15.6 = r^2
Get the square root

r ≈ 4
d = r * 2

So the diameter is around 8...

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Help :( I'm struggling

12345 [234]

What grade are you in

7 0

3 years ago

The graph of f passes through left parenthesis negative 4 comma 3 right parenthesis(−4,3) and is perpendicular to the line that

shusha [124]

Answer:

The answer to your question is y = -11/2x - 19

Step-by-step explanation:

Data

Point (-4, 3)

⊥ to the line x- intercept of 22 and y-intercept of -4.

Process

1.- Find the equation of the perpendicular line

This line has passes through the points (22, 0) and (0, -4)

Slope = $\frac{-4 - 0}{0 - 22} = \frac{-4}{-22} = \frac{2}{11}$

2.- Find the slope of the new equation

Slope = $\frac{-11}{2}$ because the lines are perpendicular

3.- Find the equation of the new line

y - 3 = -11/2 (x + 4)

y - 3 = -11/2x - 44/2

y - 3 = -11/2 x - 22

y = -11/2 x - 22 + 3

y = -11/2x - 19

See the graph below

4 0

3 years ago

Use the Pythagorean Theorem to find the exact value of x for the right triangle below. The picture below is not drawn to scale

irakobra [83]

According to pythagorean theorem
(sqrt20)² = (sqrt10)² + x², so x = sqrt(20-10) = sqrt 10
the answer is <span>x = sqrt 10</span>

4 0

3 years ago

Read 2 more answers

Lim x—> -2 <br> sqrt(3x+10) -2/ x+2

snow_lady [41]

$\displaystyle\lim_{x\to-2}\frac{\sqrt{3x+10}-2}{x+2}$

Rationalize the numerator:

$\dfrac{\sqrt{3x+10}-2}{x+2}\cdot\dfrac{\sqrt{3x+10}+2}{\sqrt{3x+10}+2}=\dfrac{(3x+10)-4}{(x+2)(\sqrt{3x+10}+2)}=\dfrac3{\sqrt{3x+10}+2}$

where the $x+2$ factors in the numerator and denominator cancel. Then the limit is

$\displaystyle\lim_{x\to-2}\frac{\sqrt{3x+10}-2}{x+2}=\lim_{x\to-2}\frac3{\sqrt{3x+10}+2}=\frac3{\sqrt4+2}=\boxed{\frac34}$

8 0

3 years ago

Which of the following steps were applied to abcd to

Natasha_Volkova [10]

Answer:the steps of me and u shawty

Step-by-step explanation:.

4 0

4 years ago