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Scilla [17]
3 years ago
11

Teams of four are competing in a quarter-mile relay race. Each runner must run the same excavation distance. What is the distanc

e each teammate runs?
Mathematics
1 answer:
densk [106]3 years ago
7 0
Each teammate would run 330 feet because a quarter mile is 1320 feet and 1320/4=330
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What is the product of (x − 3) and (x + 7)?
NeX [460]

Answer:

The product of (x-3) and (x+7) is x² + 4x - 21

Step-by-step explanation:

The product of (x-3) and (x+7) is x² + 4x - 21

The product of (x - 3) and (x + 7) can be found as follows:

(x - 3)(x + 7)

open the bracket by multiplying

Therefore,

x(x) +x(7) - 3(x) - 3(7)

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combine like terms

x² + 4x - 21

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2 years ago
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Using Newton's Law of Cooling. You are a medical examiner called to an abandoned house in which a dead body has been discovered.
Artyom0805 [142]
A) The differential equation comes from the fact that the rate of temperature change is proportional to the difference in temperatures.
\frac{dT}{dt} = \alpha(T -52)

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87 = C +52 \\  C = 35

D) Total time elapsed is 10 minutes, new temperature is 84
84 = 35 e^{10\alpha} +52
solve for alpha
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E) Temperature function is:
T = 35 e^{-.00896 t} +52
solving for t
t = \frac{ln (\frac{T-52}{35})}{-.00896}
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This is approximately 32 minutes before he arrived or about 1:20 AM
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Answer:

I need help with this too

Step-by-step explanation:

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3 years ago
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Rufina [12.5K]

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D

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D has a repeating x value. Functions are only supposed to have one input for everyone output. ( no repeating x values)

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Anit [1.1K]

The arrangement of the fraction from least to greatest is 5/11, 2/3 and 7/8.

<h3>What is a fraction?</h3>

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers

The fraction can be changed to percentage to make it easier.

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The arrangement is 5/11, 2/3 and 7/8.

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brainly.com/question/17220365

#SPJ1

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1 year ago
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