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klasskru [66]
3 years ago
8

⚠HELP!!!!!⚠1. The community center is putting on a play. There are several things the crew has to create for the scenery.

Mathematics
2 answers:
BaLLatris [955]3 years ago
6 0
A) $6.17 each X 4 poster boards = $24.68 total

B) $200.20 total / 4 lights = $50.05

C) $200.20 on lights + $24.68 on poster boards = $224.88 spent in total

$300 available - $224.88 spent = $75.12 left over to spend
Zepler [3.9K]3 years ago
4 0

a)

1 poster board = $6.17

4 poster board = 4 × 6.17

4 poster board = $24.68

b)

4 lights = $200.20

1 light = $200.20 / 4

1 light = $50.05

c)

Total spent = 4 poster board + 4 lights

Total spent = $24.68 + $200.20

Total spent = $224.88

Now,

money remaining = total budget - total spent

Money remaining = $300 - $224.88

Money remaining = $75.12

They can spent $75.12 more.

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A computer can sort x objects in t seconds, as modeled by the function
r-ruslan [8.4K]

Answer:

  36 objects

Step-by-step explanation:

You want the value of x when t=9, so you're solving ...

  9 = 0.007x^2 +0.003x

  9 = 0.007(x^2 + 3/7x)

From here, we observe that an approximation is probably sufficient.

 9/0.007 = x(x +3/7) . . . . . the expression on the right is nearly x^2

  x ≈ 3/√.007 ≈ 35.9 ≈ 36

We can check:

  .007(36)(36 3/7) = 9.18

  .007(35)(35 3/7) = 8.68

To keep the computer busy for 9 seconds, it needs to sort 36 objects.

 

6 0
3 years ago
If g(x) = x+1/x-2 and h(x) = 4-x, what is the value of (g•h)(-3)?
Yakvenalex [24]

Answer:

I think my answer is

C. 15/2

4 0
3 years ago
A)
spin [16.1K]

Answer:

Step-by-step explanation:

B

5 0
3 years ago
Read 2 more answers
Of every 5 CDs produced in a
Anestetic [448]

Answer:

880

Step-by-step explanation:

2/5 times 2200

4 0
2 years ago
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A researcher plans to conduct a significance test at the 0.01 significance level. She designs her study to have a power of 0.90
Rasek [7]

Answer: 0.10

Step-by-step explanation: The type 2 error is committed when the alternative hypothesis is rejected when it should have been accepted causing the researcher to accept the null hypothesis which is false.

Power is the probability of avoiding a type 2 error. That is ;

Power = 1 - P(type 2 error)

Given that power = 0.90 ; P(type 2 error) = probability of committing a type 2 error.

P(type 2 error)' = 1 - P(type 2 error) = Probability of not committing or avoiding a type 2 error

0.90 = 1 - P(type 2 error)

P(type 2 error) = 1 - 0.90

P(type 2 error) = 0.10

6 0
2 years ago
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