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Hitman42 [59]
2 years ago
9

Write an expression in the simplest form that represents the perimeter of the following shape

Mathematics
1 answer:
____ [38]2 years ago
3 0

Perimeter is adding all 4 sides together:

8 + 8 + 9x + 9x

Simplify by coming like terms to get:

18x + 16

The answer is d. 18x + 16

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1. Write the first term of the arithmetic sequence whose first term is 7​, and whose common difference is 9.
Elis [28]

Answer:

first term: 7

find the 17th term : 102

fifteent term: 10

Step-by-step explanation:

hababa

6 0
3 years ago
Evaluate the expression when m = -8.6 and n = -2.7. <br> -7n+4m
Sunny_sXe [5.5K]

Answer:

-15.5

Step-by-step explanation:

-7(-2.7)+4(-8.6)=-15.5

18.9-34.4=-15.5

5 0
3 years ago
Did I do this correctly? (please help asap will mark brainliest)
Basile [38]

Answer:

Ooh that is incorrect try again.

6 0
3 years ago
?
Arada [10]

Using a confidence interval of proportions, it is found that the correct statement is given by:

D a confidence interval for estimating the cricket's true probability of landing on its feet is more narrow after the final 10 jumps than it was before the final 10 jumps.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

The margin of error is inversely proportional to the square root of the sample size, hence, the higher the sample size, the narrower the interval is, hence option D is correct.

More can be learned about a confidence interval of proportions at brainly.com/question/25890103

7 0
2 years ago
What is the approximate volume of the cone? Use 3.14 for π.
yawa3891 [41]
The formula for the volume of a cone is V= πr² (h/3).
 V=  3.14 (12²) (8/3)
 V= 3.14 (144) (2.6...)
 V= 1205.76
 V≈ 1206
So the answer is A.
5 0
3 years ago
Read 2 more answers
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