4 years ago

Why is the answer E?

Mathematics

1 answer:

bearhunter [10]4 years ago

3 0

Step-by-step explanation:

The only way the answer could be E is if the x² term under the radical is supposed to be t².

f(x) = ∫₄²ˣ √(t² − t) dt

f'(x) = √((2x)² − 2x) (2)

f'(x) = 2√(4x² − 2x)

f'(2) = 2√(4(2)² − 2(2))

f'(2) = 2√12

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At 1 p.m., the number of cars in a parking lot is 78. Given the formula found in the first part of the question, An=78⋅1.09n, es

Harrizon [31]

Answer:

At 6 p.m., the number of cars in a parking lot is 120

Step-by-step explanation:

At 1 p.m., the number of cars in a parking lot is 78.

Given,

$A_n=78\cdot 1.09^n$

Note that

$A_0=78\cdot 1.09^0=78\cdot 1=78$

So, 1 p.m. goes for n = 0, then

6 p.m. goes for n = 5

Thus,

$A_5=78\cdot 1.09^5\approx 120$

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3 years ago

Cameron's uncle is 3 times old as he is. 4 years ago, he was 4 times older. How old is Cameron?

erma4kov [3.2K]

Let Cameron be x years old now.

Now:

Cameron = x

Uncle =3x

4 years ago:

Cameron = x - 4

Uncle = 3x - 4

4 years ago, Uncle is 4 times older:

3x - 4 = 4(x - 4)

Find x:

3x - 4 = 4(x - 4)

3x - 4 = 4x - 16

4x - 3x = 16 - 4

x = 12

Find the age:

Cameron = x = 12

Answer: Cameron is 12 years old now.

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3 years ago

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Answer:

68.06%;

Step-by-step explanation:

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3 years ago

What is the opposite of -4? *

alexandr402 [8]

Answer:

Step-by-step explanation:

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3 years ago

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Look below :) Everything is underneath, ty. Just need an answer by Wednesday

mamaluj [8]

Answer:

Step-by-step explanation:

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3 years ago