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3 years ago

a piece of wire 2 1/2 feet long is to be cut into 4 equal pieces. How long will each of the cut pieces be?

1 answer:

4 0

Answer:(x / 4)^2 Area of circle = pi*[(2 - x) / 2pi]^2 = (2 - x)^2 / (4pi) Total Area = (x / 4)^2 + [(2 - x)^2 / 4pi]

Step-by-step explanation:

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how much water should be mixed with 6 gallons of 55% solution of sulfuric acid to make a 20% solution of sulfuric acid

nevsk [136]

Hello.

For all dilution problems use the dilution equation:
C1V1 = C2V2 
20*V1 = 6*55 
V1 = 6*55/20 
V1 = 16.5 gallons 
The final volume must be 16.5 gallons 
You must add 16.5 - 6 = 10.5 gallons water to be added.

Have a nice day

6 0

3 years ago

Can someone help me and explain? I will mark brainlest. ♡

Sedbober [7]

Answer:

$p'(4) = -3$

$q'(8) = \frac{1}{4}\\$

Step-by-step explanation:

For p'(4):

$p(x) = f(x)g(x) \\ p'(x) = \frac{d}{dx}(f(x)g(x)) \\ p'(x) = f'(x)g(x) +f(x)g'(x)$

$p'(4) = f'(4)g(4) + f(4)g'(4) \\ p'(4) = (-1)(3) +(7)(0) \\ p'(4) = -3$

For q'(8):

$q(x) = \frac{f(x)}{g(x)} \\ q'(x)= \frac{d}{dx}(\frac{f(x)}{g(x)}) \\ q'(x) = \frac{f'(x)g(x) -f(x)g'(x)}{{g(x)}^2}$

$q'(8) = \frac{f'(8)g(8) -f(8)g'(8)}{{g(8)}^2} \\ q'(8) = \frac{(2)(2) -(6)(\frac{1}{2})}{{2}^2} \\ q'(8) = \frac{4 -3}{4} \\ q'(8) = \frac{1}{4}$

4 0

3 years ago

Read 2 more answers

Help ASAP its due today!

Genrish500 [490]

Answer:

The answer is D) 60

Step-by-step explanation:

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2 years ago

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A Theater Has 35 seats in the first row, 38 seats in the second row, 41 seats in the third row, and so on. How many seats are th

Lisa [10]

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3 years ago

Find the equation of the line.

Katen [24]

Answer:

y = -3/2x + 3

Step-by-step explanation:

y = -3/2x + 3

4 0

2 years ago