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WARRIOR [948]
3 years ago
6

The temperature dropped 5 °F every hour for 5 hours. What was the total number of degrees the temperature changed in the 5 hours

?
Mathematics
2 answers:
olasank [31]3 years ago
8 0

Answer:

it changed by 25 degrees

Step-by-step explanation:

for every hour it goes down by 5 and you have five hours so its

5+5+5+5+5

so basically its 5×5 and that equals 25

solong [7]3 years ago
4 0

Answer:

25

Step-by-step explanation:

you just multiple 5 times 5

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Please answer this. kevin buys 4 chairs. each cir cost $13.50. the sales taxs is 6.5%.
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The answer would be $57.51
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2 years ago
Two numbers are between 20 and 30. their greatest common factor is 4.Which two numbers could they be?
Andrew [12]
24 and 28
These are the only two numbers (other than 20 itself) that have a factor of 4. And if you were to find all of their common factors, 4 would be the greatest!

7 0
3 years ago
The diagram below shows a circular pizza with a diameter of 8 inches. The pizza is in a square box with side lengths of 8 inches
deff fn [24]
Area of circle is about 50.30 inches squared.
Area of square box is 64 inches squared.
Lastly 64 inches minus 50.30 inches is 13.70.
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4 0
3 years ago
A company sells widgets. The amount of profit y made by the company is related to the selling price of each widgets x by the giv
SCORPION-xisa [38]

Answer:

The maximum amount of profit is 32

Step-by-step explanation:

Given

y=-x^2+64x-292

Required

Determine the maximum profit

This is calculated by calculating the maximum of the function.

A quadratic function is of the form

y = ax^2 + bx + c

and its maximum is:

Max = \frac{-b}{2a}

So: y=-x^2+64x-292

We have that

a = -1

b = 64

c = -292

Max = \frac{-b}{2a}

Max = \frac{-64}{2 * -1}

Max = \frac{-64}{-2}

Max = 32

<em>Hence, the maximum amount of profit is 32</em>

8 0
2 years ago
Read 2 more answers
A sample of n = 4 scores is obtained from a population with a mean of 70 and a standard deviation of 8. If the sample mean corre
jeka57 [31]

Answer:

The value of the sample mean is 78.

Step-by-step explanation:

We are given that a sample of n = 4 scores is obtained from a population with a mean of 70 and a standard deviation of 8.

Also, the sample mean corresponds to a z score of 2.00.

<em>Let </em>\bar X<em> = sample mean</em>

The z-score probability distribution for a sample mean is given by;

              Z = \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \mu = population mean = 70

            \sigma = standard deviation = 8

            n = sample size = 4

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) 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.

<u>Now, we are given that the sample mean corresponds to a z score of 2.00 for which we have to find the value of sample mean;</u>

So, <em><u>z-score</u></em> formula is given by ;

                  z-score = \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } } = \frac{\bar X-70}{\frac{8}{\sqrt{4} } }

                      2.00 =  \frac{\bar X-70}{\frac{8}{\sqrt{4} } }

                      2.00 =  \frac{\bar X-70}{4 } }

                     \bar X = 70+(2 \times 4)

                     \bar X = 70 + 8 = 78

<em>Therefore, the value of the sample mean is 78.</em>

3 0
3 years ago
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