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JulijaS [17]
3 years ago
12

Please help asap 20 pts

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
6 0
Look for the graph where the line crosses the y axis at y=-1, and whose slope is -3. The answer is b.
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Mrs. McCormick asked students to track the number of times they referred to their planner to check for assignment details during
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Answer:

B

Step-by-step explanation:

the answer is b because the they are only 5 numbers of student that check in for assignment details

6 0
3 years ago
What is the answer to 6,007,200 in exspanded form
Rzqust [24]
6,000,000 + 7,000+ 200    is your expanded form

hope this helps
4 0
3 years ago
Linear equations with distributing drag and drop
nadya68 [22]

Answer:

A.)

  1. distribute
  2. add 7x to both sides
  3. add 6 to both sides
  4. divide both sides by 10

B.)

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  3. subtract 12x from both sides
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7 0
3 years ago
Help please I just need a couple so I can remember how to do this with explanation please I'll give brainliest :)
nekit [7.7K]
1. 18,000 x 1.03 (3% increase) either type 1.03 into your calculator 25 times or use an exponent ↓↓↓↓↓↓↓
18000 x 1.03^25 (25 years past)  =37,688.00 
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
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