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Gekata [30.6K]
3 years ago
6

An 18-wheel truck has a trailer that is 8 feet wide, 8 feet high, and 48 feet long. How much space is inside the trailer?

Mathematics
1 answer:
pochemuha3 years ago
4 0

Answer:

3072 cubic feet

Step-by-step explanation:

the trailer is a rectangular prism. so we use the equation

Volume = length × width × height

V = 8 × 8 × 48

V = 3072 ft^3

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There are 150 calories in a cup of whole milk and only 80 in a cup of skim milk. In switching to skim milk, find the percent dec
ss7ja [257]

Answer:

53.3%

Step-by-step explanation:

80/150=160/300

160/300=53.33/100

The decrease in calories is 53.3%

5 0
3 years ago
A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds. Find the te
vredina [299]

Answer:

b. 2.333

Step-by-step explanation:

Test if the mean transaction time exceeds 60 seconds.

At the null hypothesis, we test if the mean transaction time is of 60 seconds, that is:

H_0: \mu = 60

At the alternate hypothesis, we test if it exceeds, that is:

H_1: \mu > 60

The test statistic is:

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, s is the standard deviation of the sample and n is the size of the sample.

60 is tested at the null hypothesis:

This means that \mu = 60

A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds.

This means that n = 16, X = 67, s = 12

Value of the test statistic:

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{67 - 60}{\frac{12}{\sqrt{16}}}

t = \frac{7}{3}

t = 2.333

Thus, the correct answer is given by option b.

5 0
3 years ago
Please help this is urgent. | 2.Here are four expressions that have the value -1/2 : -1/4 + (-1/4), 1/2 - 1, -2 x 1/4, -1 ➗ 2 .
Nesterboy [21]

Answer:

Step-by-step explanation:

1 - 2 + 10 o lw. First find a common denominator. 3 * 5. After cross reducing, multiply across ... Divide the fraction to get a decimal answer. 21 into a an. Jinit. 5 = 1.25 ... 3 = -x +8. -8 = -8. = -5 = -X. =-1(-5) = -x (-1). = 5 = x. Set up a ratio, and cross ... Combine like terms, and solve for x. Divide both sides by 2. = x= 20. = 5-1​">4.

5 0
3 years ago
Read 2 more answers
Help me with this please thank you​
Yakvenalex [24]

Answer:

1/5

Step-by-step explanation:

The constant of proportionality is the slope

y/x  since the line goes through (0,0)

y=1 and x=5 at the point given

1/5

3 0
3 years ago
Read 2 more answers
Write the expanded form of the expression y(0.5+7) please help me thanks!!!
Anna71 [15]

Answer: y(0.5+7)

= 0.5y+7y

7.5y

Step-by-step explanation:

8 0
2 years ago
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