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2 years ago

Which one is it please help tank you!

Mathematics

1 answer:

Len [333]2 years ago

6 0

Answer:

3.6 × 10^4

Step-by-step explanation:

its the first one, the dark blue one

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Determine the point of intersection of the lines y = - 5/2 x and y = -x + 3 by graphing.

jeka94

Answer:

intersection point (-2,5)

Step-by-step explanation:

the line y = - 5 / 2 x you do the reciprocal which gets you x = -2 y = 5

5 0

3 years ago

The Hamilton Brush Company issued 2,500 shares of common stock worth $100,000.00 total. What is the par value of each share?

kiruha [24]

You would divide the total amount of $100,000.00 by the number of shares 2,500 to get the solution of $40.00 per share

3 0

2 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

What is 12/7 as an mixed number ??

joja [24]

Answer:

1 5/7

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

I need some help with this question. It says: expand and simplify 5(x + 7) + 3(x - 2)

Tanya [424]

Answer:

8x+29

Step-by-step explanation:

open the brackets the collect like terms together

5 0

2 years ago