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2 years ago

How do I do this please help !!!!

Mathematics

1 answer:

kozerog [31]2 years ago

3 0

The first step is to move the angle on the right side to the end of the large side of the angle that is in the middle then you move the angle on the left side to the end of the middle angle and there you go you have a triangle with the angles. Hope this helps

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Solve: (-5) + (-18) A -23 B- 13 C 13 D 23

Lina20 [59]

The answer would be -23

8 0

2 years ago

7. A number of minor automobile accidents occur at various high-risk intersections in Teton County despite traffic lights. The T

Anit [1.1K]

Answer:

Modification has not reduced the number of accidents.

Step-by-step explanation:

$H_0: \mu\geq0\\H_a:\mu$

A B C D E F G H

Before modification 5 7 6 4 8 9 8 10

After modification 3 7 7 0 4 6 8 2

Difference -2 0 1 -4 -4 -3 0 -8

Mean of differences $M_d = \frac{sum}{8}=\frac{2+0-1+4+4+3-0+8}{8}=2.5$

Standard deviation of differences = $\sqrt{\frac{\sum(x-\bar{x})^2}{n}}=2.9277$

Formula of paired t test :

$t=\frac{M_d}{\frac{s}{\sqrt{n}}}\\t=\frac{2.5}{\frac{2.9277}{\sqrt{8}}}\\t = 2.4152$

Df = n-1 = 8-1 =7

$t critical = t_{(df, \alpha)}=t_{7,0.01}=2.998$

t critical> t calculated

So, We failed to reject null hypothesis

Hence modification has not reduced the number of accidents.

6 0

2 years ago

In a population of n = 6, five of the individuals all have scores that are exactly 1 point above the mean. from this information

Maurinko [17]

The six scores have to average out to the mean, so their sum has to be six times the mean. Since the sum of the first five is 5 more than 5 times the mean, the remaining score must be 5 less than the mean.

Answer: 5 points below the mean

4 0

2 years ago

Heidi and her family took a vacation. Heidi placed the hotel room charge of $689 on her credit card. She paid the minimum of $20

AlexFokin [52]

$976.90
689+287.90=976.90

5 0

3 years ago

Read 2 more answers

2) BRAINLIEST + 10 + POINTS :D

elena55 [62]

Answer:

c) 28

explanation :

In this sequence:

a1 = 2

a2 = 4

a3 = 6

a4 = 8

a5 = 10

and so on...

then

the sum from a2 to a5 is:

a2 +a3 + a4 + a5 = 4 + 6 +8 + 10 = 28

7 0

3 years ago