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s2008m [1.1K]
3 years ago
12

Suppose a tank leaks toxic chemicals. The area affected is a circle centered on the tank. When the spill is first noticed, the c

ircle has a radius of 60 meters. A response team arrives 70 minutes later, by which time the affected area has grown to a circle with a radius of 80 meters.
Required:
How rapidly was the radius of the spill changing between the time the spill was noticed and the arrival of the response team?
Mathematics
1 answer:
cricket20 [7]3 years ago
8 0

Answer:

0.5 ft per min

Step-by-step explanation:

in 80 minutes the radius expanded by 40%

we can set up a proportion of percent change over minutes:

.4/80 = r/1

cross-multiply to get:

80r = .4

r = .005 or 1/2 of a foot per minute.

Hope It Helps :)

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Answer:

Since Roman walks 1 more than Patrick then you have to subtract 1 from Patricks number of miles.

4 0
3 years ago
The small number is a 3 please help
Lunna [17]

Answer:

1

 

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2

 

Group the same prime factors into groups of three.

\sqrt[3]{(2\times 2\times 2)\times 5\times 5}3(2×2×2)×5×5

3

 

Rewrite each group of three in exponent form.

\sqrt[3]{{2}^{3}\times 5\times 5}323×5×5

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Use this rule: \sqrt[3]{{x}^{3}}=x3x3=x.

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5

 

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6

 

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7

 

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3 0
2 years ago
Read 2 more answers
What is the variance of the following data? If necessary, round your answer to two decimal places 600,470,170,430,300
Mkey [24]

Answer:

72112885110079700000000000000.00

Step-by-step explanation:

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n=5

S²(variance) = ((600470170430300-120094034103510)²+(23056-120094034103510)²+(22123-120094034103510)²*+(21704-120094034103510)²+(20365-120094034103510)²/(5-1)

S² = 72112885110079700000000000000.00

3 0
2 years ago
Is a+b+a+b and 2(a+ b) equivalent?
Varvara68 [4.7K]
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5 0
3 years ago
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Find the Selling Price
natka813 [3]
I think it is 45 times 54 divided by 600 equals $4.05
3 0
3 years ago
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