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3 years ago

8

the base of an isosceles triangle is 10 ft long and the base angles are decreasing at a rate of 2 degree per secnd. find the rat

e of change of the area when the base angles are 45 degree

1 answer:

ryzh [129]3 years ago

4 0

We have the height h is

<span>h = 5tanθ </span>

<span>a = 5h = 25tanθ </span>
<span>da/dt = 25sec^2θ dθ/dt </span>

<span>Now just plug in your numbers (in radians!)</span>

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She has read 1/5 of the book already what fraction of the book does she need to read now?

arlik [135]

Answer:

4/5

Step-by-step explanation:

1-1/5=4/5

she still has 4/5 to read

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3 years ago

Solve for the variable rin this equation: a(c+b)=d

strojnjashka [21]

Answer:

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Step-by-step explanation:

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3 years ago

What is ∛2197? Explain how you got your answer.

user100 [1]

Answer:

13

Step-by-step explanation:

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3 years ago

Read 2 more answers

A game costs $39.00. But the new special edition version is going to be $56.94. What is the increased percent?

astraxan [27]

Answer:

46%

Step-by-step explanation:

<u>Step 1: Make an expression</u>

<u /> $39.00 * x = 56.94$

$39x = 56.94$

<u>Step 2: Divide both sides by 39</u>

<u /> $39x / 39 = 56.94 / 39$

$x = 1.46$

<u>Step 3: Find the percent</u>

<u /> $1.46 - 1$ -> Gives us the increased percent

$0.46 * 100$

46%

Answer: 46%

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3 years ago