Rafael's salary last year was $49,500 and he took home

The table displays the volume of a triangular prism and triangular pyramid with the same base area and height. Use the drop-down

djyliett [7]

Answer:

A=8

B=45

C=18

I did the assignment and got the question right.

6 0

3 years ago

3t/2+7=4t-3 please answer asap and step by step please

Harrizon [31]

t in (-oo:+oo)

(3*t)/2+7 = 4*t-3 // - 4*t-3

(3*t)/2-(4*t)+3+7 = 0

(3*t)/2-4*t+3+7 = 0

10-5/2*t = 0 // - 10

-5/2*t = -10 // : -5/2

t = -10/(-5/2)

t = 4

t = 4 is the answer

hope it helps~

7 0

3 years ago

Read 2 more answers

Question 3 A study was performed to determine whether men and women differ in their repeatability in assembling components on pr

Fed [463]

Answer:

There is no sufficient evidence to support the claim that men and women differ in repeatability for this assembly task

Step-by-step explanation:

Given

Let subscript 1 represent men and 2 represent women, respectively.

$n_1 = 25$

$n_2 = 21$

$s_1 = 0.98$

$s_2 = 1.02$

$\alpha = 0.02$

Required

Determine if here is enough evidence

First, we need to state the hypotheses

$H_o: \sigma_1^2 = \sigma_2^2$

$H_1: \sigma_1^2 \ne \sigma_2^2$

Next, calculate the test statistic using:

$F = \frac{s_1^2}{s_2^2}$

$F = \frac{0.98^2}{1.02^2}$

$F = 0.923$

Calculate the rejection region;

But first, calculate the degrees of freedom

$df_1 =n_1 - 1$

$df_1 =25 - 1$

$df_1 =24$

$df_2 = n_2 -1$

$df_2 = 21 - 1$

$df_2 = 20$

Using the F Distribution: table

$c = \frac{\alpha}{2}$

$c = \frac{0.02}{2}$

$c = 0.01$

At 0.01 level (check row 20 and column 24), the critical value is:

$f_{0.01,24,20} = 2.86$ --- the upper bound

At 0.01 level (check row 24 and column 20), the critical value is:

$f_{0.01,20,24} = 2.74$

Calculate the inverse F distribution.

$f_{0.99,20,24} = \frac{1}{f_{0.01,20,24}} = \frac{1}{2.74} =0.365$ ---- the lower bound

The rejection region is then represented as:

$0.365 < Test\ Statistic < 2.86$

If the test statistic falls within this region, then the null hypothesis is rejected

$F = 0.923$ --- Test Statistic

$0.365 < 0.923 < 2.86$

The above inequality is true; so, the null hypothesis is rejected.

This implies that, there is no sufficient evidence.

7 0

3 years ago

Express this in scientific notation 13,040,000

castortr0y [4]

First, to rewrite something in scientific notation, we want to move the decimal point a number of times to the right or left to end with a number between 0 and 10. In this case, we want to move the decimal point 7 times to the left to get the number 1.304. In scientific notation, this would be the same as 1.304*10^7.

I hope this helps!

3 0

4 years ago

PLS HELP I WILL MARK BRAINLIEST!!

Mandarinka [93]

Answer:

28

Step-by-step explanation:

I think

A= 1/2 bh

A= 1/2 (14)(4)

A= 56/2

A= 28

5 0

3 years ago