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aleksandrvk [35]
2 years ago
15

club a raised $168 by washing 42 cars. club b raised $152 by washing 38 cars. are these fundraising rates equivalent ? explain y

our reasoning.​
Mathematics
1 answer:
uysha [10]2 years ago
6 0

Answer:

The two rates are equivalent.

Step-by-step explanation:

Here we'll find the respective unit rates and then compare those rates:

$168

----------- = $4/car

42 cars

$152

----------- = $4/car

38 cars

These two rates are precisely the same.  Thus, we conclude that they are equivalent.

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user100 [1]

Answer:

To prove that ( sin θ cos θ = cot θ ) is not a trigonometric identity.

Assume θ with a value and substitute with it.

Let θ = 45°

So, L.H.S = sin θ cos θ = sin 45° cos 45° = (1/√2) * (1/√2) = 1/2

R.H.S = cot θ = cot 45 = 1

So, L.H.S ≠ R.H.S

So, sin θ cos θ = cot θ is not a trigonometric identity.

8 0
2 years ago
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vesna_86 [32]

Question: The sample data and the scatter plot was not added to your question. See the attached file for the scatter plot.

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Step-by-step explanation:

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Therefore, it appropriate to use the correlation coefficient to describe the strength of the relationship between​ "Time" and​ "Fish Quality"?

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2 years ago
Radium decays according to the function Q(t) = Q0e-kt where Q represents the quantity remaining after t years and k is the decay
Bingel [31]
Solve

hmmm
half life
well, 120 to 60 is half

60=120e^(-0.00043t)
solve for t
divide both sides by 120
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take ln of both sides
ln(1/2)=-0.00043t
divide both sides by -0.00043
ln(1/2)/-0.00043=t
t≈1611.97 years
about 1612 years
3 0
2 years ago
Gillian purchased 25 books at the library book sale. Each hardcover book cost $1.50, and each paperback book cost $0.50. Gillian
aev [14]

Answer: The answer is 11 (A)


Step-by-step explanation:


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2 years ago
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Answer:

Yes

Step-by-step explanation:

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