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love history [14]
2 years ago
10

HELP

Mathematics
2 answers:
DIA [1.3K]2 years ago
8 0

Answer:

3 1/3 metric tons per hour

Sever21 [200]2 years ago
7 0

Answer:

The answer is 3 1/3 metric tons per/hour

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Hey could anyone help?
Sav [38]

Answer:

18

Step-by-step explanation:

The ~ indicates that ∠ABC is similar<em> </em>to ∠QRS. In other words, their proportions are the same, even if their size is different.

So AB has the same proportions as QR. 4 can be multiplied by 2.25 to get to 9. So multiply 8 by 2.25 to get n.

8 * 2.25 = 18 so n = 18

4 0
3 years ago
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Equation is best that shows 48 is a multiple of three
Gnom [1K]
48/3=16, which is a whole number and not a decimal, so that means that 48 is a multiple of 3. More equations below:
48/3=16
3•16=48
6•8=48
48/8=6
48/6=8
48/16=3
4 0
3 years ago
For an intramural sports program at a particular college, the time to run one mile is recorded for 200 male students in the prog
Greeley [361]

Answer:

Devon has the lower z-score, so he ran the mile faster relative to his gender.

Step-by-step explanation:

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

Who ran the mile faster relative to their gender?

The lower the percentile of time ran, the faster. So whoever has the lower z-score ran the mile faster.

Devon

His best time to run the mile is 6.6 minutes.

These times are approximately normal with mean 8 minutes and standard deviation 1 minute.

We have to find Z when X = 6.6, \mu = 8, \sigma = 1. So

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

Z = \frac{6.6 - 8}{1}

Z = -1.4

Kendall

Her best time to run the mile is 5.7 minutes.

These times are approximately normal with mean 7.5 minutes and standard deviation 2 minutes.

We have to find Z when X = 5.7, \mu = 7.5, \sigma = 2. So

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

Z = \frac{5.7 - 7.5}{2}

Z = -0.9

Devon has the lower z-score, so he ran the mile faster relative to his gender.

3 0
3 years ago
What is a irrational number by a circumference
alekssr [168]
A real number is rational, if it is the ratio of two integers. Otherwise it is called irrational. If D<span> is the diameter of circle, then </span>C<span> = </span>π D<span> is it's circumference.</span>
5 0
3 years ago
HELP PLEASE ! find the area of the shape below
White raven [17]

Answer:

area = 202.5 yd²

Step-by-step explanation:

area = (15 x 12 ) + (3)(15)(0.5)

area = 180 + 22.5 = 202.5 yd²

8 0
3 years ago
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