All categories

2 years ago

I need help with the area and perimeter

Mathematics

1 answer:

Lady_Fox [76]2 years ago

8 0

Answer:

Area would be 122.

Perimeter would be 45.

You might be interested in

Which golfer is the least consistent

yKpoI14uk [10]

The least consistent would be A i think, not for sure

8 0

2 years ago

One day Susan's mom gave her a bag of candy. Three days later she had 28 pieces of candy. Eight days after her mom gave her the

lions [1.4K]

34 candies were in the bag originally

7 0

2 years ago

A committee at the College Board has been asked to study the SAT math scores for students in Pennsylvania and Ohio. A sample of

ozzi

Answer:

Step-by-step explanation:

From the given information:

The null hypothesis and the alternative hypothesis can be computed as:

$H_0 :\mu_1 -\mu_2 = 0$ (i.e. there is no difference between the SAT score for students in both locations)

$H_1 :\mu_1 -\mu_2 \geq0$ (i.e. there is a difference between the SAT score for students in both locations)

The test statistics using the students' t-test for the two-samples; we have:

$t = \dfrac{\overline x_1 -\overline x_2}{\sqrt{\dfrac{s_1^2}{n_1}+\dfrac{s_2^2}{n_2} } }$

$t = \dfrac{580 -530}{\sqrt{\dfrac{105^2}{45}+\dfrac{114^2}{38} } }$

$t = \dfrac{50}{\sqrt{\dfrac{11025}{45}+\dfrac{12996}{38} } }$

$t = \dfrac{50}{\sqrt{245+342 } }$

$t = \dfrac{50}{\sqrt{587} }$

$t = \dfrac{50}{24.228}$

t = 2.06

degree of freedom = ( $n_1 + n_2$ ) -2

degree of freedom = (45+38) -2

degree of freedom = 81

Using the level of significance of 0.05

Since the test is two-tailed at the degree of freedom 81 and t = 2.06

The p-value = 0.0426

Decision rule: To reject $H_o$ if the p-value is less than the significance level

Conclusion: We reject the $H_o$ , thus, there is no sufficient evidence to conclude that there is a significant difference between the SAT math score for students in Pennsylvania and Ohio.

5 0

2 years ago

A specific factor having a range of possible values is a __________.

Vlada [557]

of course it's

it's a vaariable

7 0

2 years ago

Read 2 more answers

School X and School Y play each other in a competition. School X has six more points than School Y. School X has four times as m

Kipish [7]

Answer:

School X has 8 points and School Y has 2 points

Step-by-step explanation:

From first sentence

X - 6 = Y

From second sentence

X = 4Y

Hence substitute equation 1 into equation 2

4Y - 6 = Y

Y = 2

X = 4 x 2 = 8

6 0

3 years ago

Read 2 more answers