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Feliz [49]
3 years ago
15

Solve the eguation for A: A÷2=4

Mathematics
2 answers:
salantis [7]3 years ago
7 0
A=8 because 8÷2=4. I found the answer by 2×4
Lynna [10]3 years ago
3 0
Reverse it so that it's 4x2 which gives you 8
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Assume that women have heights that are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches.
Maurinko [17]

Answer:

Q3 = 65.7825.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

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.

In this problem, we have that:

\mu = 63.6, \sigma = 2.5

Find the value of the quartile Q3. (Hint: Q3 has an area of 0.75 to its left.)

This is the value of X when Z has a pvalue of 0.75. So it is X when Z = 0.675.

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

0.675 = \frac{X - 63.6}{2.5}

X - 63.6 = 0.675*2.5

X = 65.7825

Q3 = 65.7825.

3 0
3 years ago
Find 6 3/4 - 4 11/12. Write your answer in simplest form.
Mrrafil [7]

Answer:

1 5/6

Step-by-step explanation:

first convert to /12 and put the wholes in the fraction:

6 3/4 = 81/12

4 11/12 = 59/12

Then perform the subtraction

81/12 - 59/12 = 22/12

... and simplify

22/12 = 11/6

separate the wholes

11/6 = 6/6 + 5/6 = 1 5/6

4 0
2 years ago
Read 2 more answers
Solve the following proportion.<br> х<br> 42<br> 35<br> 10
anzhelika [568]

Answer:

12

Step-by-step explanation:

The proportion is equal to \frac{x}{10}=\frac{42}{35}

We can simplify the right side by dividing by 7/7 to get the right side equal to 6/5. Now we can cross-multiply to get

60=5x

Dividing both sides by 5, we have the answer as

x=12

6 0
2 years ago
Please help with this. Thank you very much.
Harman [31]
Here's a graph with 4 points shown.

4 0
3 years ago
Help me please I don’t know this stuff
yuradex [85]
Answer: 24 because jeff earned $600 and for jason to earn the same amount 24*25 hours = 600
7 0
2 years ago
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