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Leokris [45]
3 years ago
9

Please help me fast and show all your work please thx ​

Mathematics
2 answers:
Dafna11 [192]3 years ago
8 0

Answer:

Step-by-step explanation:

Area=\frac{1}{2}*(8+5)*2\\\\=\frac{1}{2}*13*2\\\\=13mm^{2}

olga_2 [115]3 years ago
4 0

Answer:

13

Step-by-step explanation:

1/2x(8+5)x2

1/2×13×2

=13

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A test preparation claims that more than​ 50% of the students who take their test prep course improve their scores by at least 1
satela [25.4K]

Answer:

Step-by-step explanation:

Corresponding scores before and after taking the course form matched pairs.

The data for the test are the differences between the scores before and after taking the course.

μd = scores before taking the course minus scores before taking the course.

a) For the null hypothesis

H0: μd ≥ 0

For the alternative hypothesis

H1: μd < 0

b) We would assume a significance level of 0.05. The​ P-value from the test is 0.65. The p value is high. It increases the possibility of accepting the null hypothesis.

Since alpha, 0.05 < than the p value, 0.65, then we would fail to reject the null hypothesis. Therefore, it does not provide enough evidence that scores after the course are greater than the scores before the course.

c) The mean difference for the sample scores is greater than or equal to zero

3 0
2 years ago
State The Absolute value and the opposite of the number. -24, 8, 31, -17​
marshall27 [118]

24

8

31

17

absolute value with positive numbers are always positive if I remember correctly.

oooo and the opposite

24

-8

-31

and 17

4 0
2 years ago
Suppose you connect the points on the graph in the example, what would the graph look like?<br>​
aliya0001 [1]

Answer:

Your graph would look like lines going up and up and up

Step-by-step explanation:

Why you ask? Well, because the graph shown here is going by the factors of 6. And the factors of 6 are pretty high, which means it would be going up like a twisted line going right ot left depending which way you look at it. It would be going up and up because like 18 times 6 is 108 and 20 times 6 is 120.

3 0
3 years ago
Please help me with this 20 points
JulsSmile [24]

Answer:

A  4/605

Step-by-step explanation:

mathematics = 11 letters

P(m) = number of m's/total = 2/11

we replace it so we have  mathematics = 11 letters

P(s) = number of s's/total = 1/11

not replacing it

we replace it so we have  mathematic = 10 letters

P(vowel) = number of vowel/total = 4/10 = 2/5

P(m, replace,s, no replace, vowel) = 2/11*  1/11 * 2/5 =  4/605

3 0
3 years ago
Read 2 more answers
Find the missing angle.
cestrela7 [59]

Answer:

85 degrees

Step-by-step explanation:

The angles in a quadrilateral add to 360 degrees, so x+109+96+70=360.

This means that x=360-109-96-70=85 degrees

5 0
1 year ago
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