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2 years ago

Please help! there’s a picture!

Mathematics

1 answer:

Dvinal [7]2 years ago

8 0

Answer:

D. (The last one) is the answer

Step-by-step explanation:

I took that test and got it right! I hope you have a good day!

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The standard IQ test has a mean of 102 and a standard deviation of 13. We want to be 98% certain that that we are within 5 IQ po

aleksklad [387]

Answer:

Step-by-step explanation:

Margin of error = critical value × standard error

For 98% confidence, CV = 2.326 (from t table).

Standard error is σ / √n, where σ is the population standard deviation, and n is the sample size.

Plugging in:

5 = 2.326 × 13 / √n

n = 36.6

Rounding up, n = 37.

5 0

4 years ago

Which of the following expressions “ the sum of n and the sum of n and 6 ?

faltersainse [42]

what do u mean by that

3 0

3 years ago

Help me please? I need the ANSWER. 10 points

Ksju [112]

1/4 cups of butter
because 3/4 times 1/3 =
1/4

4 0

4 years ago

Read 2 more answers

Find the quotient 6 2/7 ÷ 2 3/4

gregori [183]

Answer:

Find the quotient.

6 2/7 divided by 2 3/4.

2 2/7. (MY ANSWER)

17 2/7.

2 6/11.

7/16.

Step-by-step explanation:

I hope this helps you!!

8 0

3 years ago

Read 2 more answers

Find the length of line segmentAB which joins the following points.A(10, 14) and B(2,6)

Helen [10]

Answer:

The equation of the line AB is y - x -4 = 0

Step-by-step explanation:

The points are A (10,14) and B(2,6)

Now, slope of the line AB : $m = \frac{y_2 - y_1}{x_2 - x_1}$

or, $m = \frac{14 -6 }{10 - 2}$ = $\frac{8}{8} = 1$

So, slope of the equation AB = 1

Now, by SLOPE INTERCEPT FORM:

The equation of line is given as : y - y0 = m (x-x0)

So,the equation of line AB is y - 6 = 1(x-2)

or, y - 6 -x + 2 = 0

or, y - x -4 = 0

Hence, the equation of the line AB is y - x -4 = 0

5 0

3 years ago