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KATRIN_1 [288]
2 years ago
8

The water dam is filled up using the first tributary in 1 hour and 10 minutes, using the second

Mathematics
1 answer:
kondaur [170]2 years ago
7 0

Answer:

I would use quaro is is faster.

Step-by-step explanation:

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PLz help me this is 7th grade math
UkoKoshka [18]

Answer:

g = 118°, h = 62°, k = 140°, m = 40°

Step-by-step explanation:

g = 118°

h = 180 - 118 = 62°

k = 140°

m = 180 - 140 = 40°

5 0
3 years ago
SOMEONE PLEASE HELP ME!!!!!!
VashaNatasha [74]

Answer:

There are multiple possibilities. One is there are 12 boys, and 16 girls. 12+16= 28 which is between 20 and 30. That would be 12:16, which can be simplified to 3:4. There is also 9 boys, and 12 girls. that would be 9:12, which can be simplified to 3:4. Also, 9 + 12 = 21, which is between 20 and 30.

7 0
3 years ago
Suppose you are asked to take a sample of men and women in order to measure their emotional IQ. The emotional IQ scale that you
yan [13]

Answer:

The 99% confidence interval for the scores of men is (64.406,75.594).

The 99% confidence interval for the scores of women is (73.609,90.391).

Step-by-step explanation:

We have the standard deviations for the sample, which means that the t-distribution will be used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 25 - 1 = 24

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.797.

For men:

Standard deviation of 10.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.797\frac{10}{\sqrt{25}} = 5.594

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 70 - 5.594 = 64.406

The upper end of the interval is the sample mean added to M. So it is 70 + 5.594 = 75.594

The 99% confidence interval for the scores of men is (64.406,75.594).

For women:

Standard deviation of 15.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.797\frac{15}{\sqrt{25}} = 8.391

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 82 - 8.391 = 73.609

The upper end of the interval is the sample mean added to M. So it is 82 + 8.391 = 90.391

The 99% confidence interval for the scores of women is (73.609,90.391).

4 0
2 years ago
Find the simple interest earned to the nearest cent for each principal, interest rate, and time.
Lorico [155]
Try Using the Formula I=Prt

principal×rate×time

so

P-1200
R-.039
T-8 months
4 0
3 years ago
Name three decimals with a product that is about 40.
pochemuha
<span>Some of the decimals which when multiplied will give a product of about 40 are: (1) 40. and first decimal, (2) 0.40 and the second decimal, and lastly (3) 4.0 and the third decimal. It must be noted that the multiplication of a number with a decimal will move the decimal place one place to the right. </span>
6 0
3 years ago
Read 2 more answers
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