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Naddik [55]
3 years ago
8

Define the opposite and the absolute value of -8.

Mathematics
2 answers:
Shtirlitz [24]3 years ago
8 0

Answer:

C

Step-by-step explanation:

umka2103 [35]3 years ago
6 0

Answer:

The opposite of -8 is 0 and the absolute value in 8

Step-by-step explanation:

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Each gallon of shingle stain covers 120 square feet. How many gallons should you buy to cover 658 square feet?
hjlf
You need to divide 658 by 120 because you know one gallon covers 120 square feet.
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3 years ago
Need to find the volume. measurements in picture, please help.​
o-na [289]

Answer:

V = 288.5 yd^{3}

Step-by-step explanation:

To find the volume of a cone, use this equation:

V = \pi r^{2}\frac{h}{3}

r = radius

h = height

We aren't given the height of the cone, just the length of the side. To find the height use the Pythagorean Theorem:

a^{2}+ b^{2}= c^{2}

The value of 12.1 yds is the hypotenuse and the radius is the value of one of the legs. So, set it up like this:

a^{2}+5^{2}  =12.1^{2}

Now, solve:

a^{2}+25=  146.41                   Distribute the square

a^{2} =  121.41                           Subtract 25 from 146.41

\sqrt{a^{2} }=\sqrt{121.41}

a = 11.01862

So, the height is equal to 11.01862 yds.

Now, we can plug everything into the volume equation:

V = \pi (5)^{2}\frac{11.01862}{3}

Simplify (use calculator):

V = 288.5 yd^{3}

So, the volume of the cone is equal to 288.5   yd^{3}

5 0
2 years ago
Which theory is supported by scientists gathering the additional evidence of seafloor spreading and magnetism?
Levart [38]

Answer:

Mid-Atlantic Ridge Theory

Step-by-step explanation:

hope this helps. :)

5 0
2 years ago
Read 2 more answers
The average full-time faculty member in a college works an average of 53 hours per week. a) If we assume the standard deviation
arsen [322]

Answer:

2.28% of faculty members work more than 58.6 hours a week.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The average full-time faculty member in a college works an average of 53 hours per week. Standard deviation of 2.8 hours.

This means that \mu = 53, \sigma = 2.8

What percentage of faculty members work more than 58.6 hours a week?

The proportion is 1 subtracted by the p-value of Z when X = 58.6. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{58.6 - 53}{2.8}

Z = 2

Z = 2 has a p-value of 0.9772

1 - 0.9772 = 0.0228

0.0228*100% = 2.28%

2.28% of faculty members work more than 58.6 hours a week.

6 0
3 years ago
Arianna deposits $500 in an account that pays 1.3% interest, compounded semi-annually. How much is in the
Alika [10]

Answer:

<u>1</u><u>•</u><u>3</u><u> </u> × $500

100

<u>1</u><u>.</u><u>3</u><u> </u><u>×</u><u> </u><u>1</u><u>0</u><u> </u> × $500

100× 10

<u>1</u><u>3</u><u> </u> × $500

1000

=$6.5 semi annually

end of two years.....

6.5 × 4

=$26

in account.....

$500+$26

=$526

5 0
2 years ago
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