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Nataly_w [17]
3 years ago
11

How can I find the unknown side lengths when given the area or circumference of a figure?

Mathematics
1 answer:
ad-work [718]3 years ago
6 0

Answer:

Set up the area/circumference equations using x as the unknown variable. Then, solve for that variable and apply the correct unit.

Step-by-step explanation:

For example,

Find the side length of a square with an area of 49 square centimeters.

Since area=s^{2}, i can write 49=s^2\\then take the square root of each side to solve for s.\\s=\sqrt{49} \\s=7  centimeters

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Solve the following expression: 4 (r - 8 ) when r + 10<br><br> 8<br> 2<br> 72<br> 6
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Answer:

The answer is 8

Step-by-step explanation:

if R is equal to 10, the you subtract 10-8 which is two and multiply by four.

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3 years ago
A common inhabitant of human intestines is the bacterium Escherichia coli, named after the German pediatrician Theodor Escherich
grandymaker [24]
A.) P(t) = P0exp(kt)
P(20/60) = 40 exp(20k/60)
80 = 40 exp(k/3)
exp(k/3) = 80/40 = 2
k/3 = ln(2)
k = 3ln(2)

b.) P(8) = 40(2)^24 = 40(16777216) = 671088640 cells

d.) Rate of change = exp(8k) = exp(8(3ln(2)) = exp(24ln(2)) = exp(16.6355) = 16777216 cells / hour

e.) P(t) = 40(2)^3t; t in hours
1,000,000 = 40(8)^t
25,000 = 8^t
ln(25,000) = t ln(8)
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8 0
4 years ago
Read 2 more answers
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Nesterboy [21]

Answer:

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Step-by-step explanation:

5 0
3 years ago
I need the answer please help me
erica [24]

Answer:

f. 2x+13

Step-by-step explanation:

4 0
4 years ago
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Katyanochek1 [597]
To solve for the longest side, the hypotenuse, you have to use the pythagorean theorem. It will be 10^2 + 9^2 = c^2. 100 + 81 =c^2. 
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to find cos of A do adjacent/hypotenuse which gives you 10/sqrt(181)

8 0
3 years ago
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