All categories

3 years ago

Write the sum as a product. Simplify the product.

Mathematics

2 answers:

goldenfox [79]3 years ago

7 0

Answer:

Step-by-step explanation:

postnew [5]3 years ago

3 0

Answer:

Step-by-step explanation:

We see (-10) repeating six times. This means the product would be 6(-10). To simplify this, 6 × (-10) = -60.

You might be interested in

Vincent ran 24 laps on monday. This is 63 2/3 of the maximum number of laps he has run in one day. What is the maximum number of

ivann1987 [24]

63.66%x=24

x=240000/6366

=40000/1061

4 0

3 years ago

Which of these answers is closest to zero-2, 0.2, 1, 1/2

Dmitry_Shevchenko [17]

0.2 is closest to zero

4 0

3 years ago

If 30 kids in the class like grape juice, how many<br> kids like pineapple juice?

lbvjy [14]

Sorry, I'm going to need a more accurate question. How many kids are there in total?

5 0

3 years ago

The area of a parallelogram is 6 square units. Both the height and the length of the base are whole numbers. What are the possib

lbvjy [14]

Answer:

Step-by-step explanation:

The factor pairs of 6 are 1×6 and 2×3

So the parallelogram (height by length) could be:

1 by 6

2 by 3

3 by 2

6 by 1

7 0

3 years ago

Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations using the t statistic

Yuliya22 [10]

Answer:

a) For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

$df = n-1= 10-1=9$

d.9

b) $s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15$

a.15

c) For this case we have the sample size n = 25 and the sample variance is $s^2 =400$ , the standard error can founded with this formula:

$SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80$

Step-by-step explanation:

Part a

For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

$df = n-1= 10-1=9$

d.9

Part b

From a sample we know that n=41 and SS= 600, where SS represent the sum of quares given by:

$SS = \sum_{i=1}^n (X_i -\bar X)^2$

And the sample variance for this case can be calculated from this formula:

$s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15$

a.15

Part c

For this case we have the sample size n = 25 and the sample variance is $s^2 =400$ , the standard error can founded with this formula:

$SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80$

8 0

3 years ago