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Masja [62]
3 years ago
6

10. A crew is shingling a roof. They complete 6.8 square feet every hour.

Mathematics
2 answers:
natita [175]3 years ago
6 0

Answer:

85

Step-by-step explanation:

6.8 x 12.5 or 12 1/2 = 85

I think that is the answer. I am not 100% sure but I am confident.

Dahasolnce [82]3 years ago
6 0

Answer: 6.8 x 12.5 or 12 1/2 = 85  So 85

Step-by-step explanation: Sup how are ya.

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2x^2+16x+42=0 what is the answer?
Debora [2.8K]

Answer:

no solution

Step-by-step explanation:

With some linear expressions, like this one, that has an answer of 0 has no solution

3 0
3 years ago
Suppose that the mean time that visitors stay at a museum is 94.2 minutes with a standard deviation of 15.5 minutes. The standar
Maurinko [17]

Answer:

94.2 -0.994*3.1 = 91.1186

94.2 +0.994*3.1 = 97.2814

And the 68% confidence interval is given by (91.1186, 97.2814)

Step-by-step explanation:

For this case we know that mean time that visitors stay at a museum is given by:

\bar X = 94.2

The standard deviation is given by:

s= 15.5

And the standard error is given by:

SE = \frac{s}{\sqrt{n}} =3.1

And we want to interval captures 68% of the means for random samples of 25 scores and for this case the critical value can be founded like this using the normal standard distribution or excel:

z_{\alpha/2}= \pm 0.994

We can find the interval like this:

\bar X \pm ME

And replacing we got:

94.2 -0.994*3.1 = 91.1186

94.2 +0.994*3.1 = 97.2814

And the 68% confidence interval is given by (91.1186, 97.2814)

7 0
3 years ago
Find the area of the figure.<br> A-56cm^2<br> B-88cm^2<br> C-112cm^2<br> D-384cm^2
julia-pushkina [17]
  • firstly find the area of the square which is sidexside=8x8=64cm^2
  • then find the area of the triangle which is 1/2xbasexhight=1/2x8x6=24cm^2
  • THEN add both areas (64+24)=88cm^2

4 0
3 years ago
Can someone tell me whats1+1​
Andreyy89

Answer:

2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which of the following statements are true about the function y = 3x?
dolphi86 [110]

Answer:

I believe the answer is The constant of variation is y is 6 when x is 2.

6 0
3 years ago
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