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olya-2409 [2.1K]
4 years ago
14

Name what the triangle is .

Mathematics
2 answers:
erma4kov [3.2K]4 years ago
8 0
It's an isosceles triangle because two of the sides are equal. An equilateral triangle is when all of the sides are equal, and a scalene triangle is when all of the side lengths are different. An acute triangle is when all three angle measures are less than 90 degrees. Hope this helps!
ollegr [7]4 years ago
5 0
Well scalene triangles are known as right triangles too and that is a right triangle. This is your answer, but let's make sure first.

Isosceles triangles are acute triangles.

Equilateral triangles are triangles that have the same degrees in each angle. (40*, 40*, 40*)

Acute triangles are acute triangles.

Your final answer is A. scalene

Hoped I helped!
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A supplier of a certain car parts chain of stores wants to estimate the average length of time car owners plan to keep their car
____ [38]

Answer:

The 99% confidence interval for the average length of time all car owners plan to keep their cars is between 3.85 years and 10.55 years.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.575

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 2.575*\frac{6.5}{\sqrt{25}} = 3.35

The lower end of the interval is the sample mean subtracted by M. So it is 7.2 - 3.35 = 3.85 years

The upper end of the interval is the sample mean added to M. So it is 7.2 + 3.35 = 10.55 years

The 99% confidence interval for the average length of time all car owners plan to keep their cars is between 3.85 years and 10.55 years.

7 0
3 years ago
Which statements are true?
SCORPION-xisa [38]
See the attached picture

4 0
3 years ago
Read 2 more answers
A box filled with books weighs 1112 kilograms.
Nataly [62]

Answer:

24.464~20 pounds

Step-by-step explanation:

11.12*2.20

=24.464

24.46=20

Hope this helps :)

5 0
3 years ago
Justin invested $7,300 in an account paying an interest rate of 1.5% compounded
lana [24]

Answer: 10.7 years.

Step-by-step explanation:

7,300 * (1 + 0.015)^x = 8,560 <=>

7,300 * 1.015^x = 8,560 <=>

1.015^x = 8,560 / 7,300 <=>

1.015^x = 1.1726 <=>

x = 10.694

To the nearest tenth:

x = 10.7 years

8 0
3 years ago
8 teams dived 23 pizzas equally
inessss [21]

Answer:

Divide the number of pizzas by the number of teams.

23/8

2 5/8

Each team received 2 5/8 pizzas.

:)

7 0
3 years ago
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