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4 years ago

How to solve 9x 4 2/5 in words

Mathematics

1 answer:

Natalija [7]4 years ago

3 0

Answer:

39.6

Thirty nine point six

Step-by-step explanation:

9 x 4 2/5

9 x 22/5

198/5 = 39.6

Thirty nine point six

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Find the area of a regular polygon with a side length of 7. Round your answer to the nearest hundredth.

lianna [129]

apothem /perimeter/ / 7 ft /5 /10 ft// / 175 ft^2

so polygon lol im so complecated

Step-by-step explanation: i learned in school

6 0

3 years ago

Mrs. Stevens is wanting to buy new border for her math bulletin board in the hallway l. The length of the board is 6.9 meters. T

kiruha [24]

Answer:

The quantity of board which Mr. Stevens need to buy is 22.4 meters

Step-by-step explanation:

Given as :

The length of board = 6.9 meters

The width of board = 4.3 meters

Let The measure of new board = x meter

Now,

The measure of new board = The perimeter of board

∵ The board is of rectangle figure

As, The perimeter of rectangular board = 2 × Length + 2 × width

So, The measure of new board = 2 × Length + 2 × width

or, x = 2 × 6.9 + 2 × 4.3

or, x = 13.8 + 8.6

or, x = 22.4 meters

So, The measure of new board = x = 22.4 meters

Hence The quantity of board which Mr. Stevens need to buy is 22.4 meters Answer

3 0

3 years ago

Based on sample results, a 90% confidence interval for the mean servings of fruit per day consumed by grade school children is (

Artemon [7]

Answer: 1.12

Step-by-step explanation:

The confidence interval for the mean $\mu$ and margin of error E is given by :-

$(\mu-E,\ \mu+E)$ --------------(1)

The given confidence interval : (0.21, 2.45) -------------(2)

From (1) and (2), we have

$\mu-E=0.21-------(3)\\\\\mu+E=2.45--------(4)$

Subtract equation (3) from (4), we get

$2E=2.45-0.21\\\\\Rightarrow\ 2E=2.24\\\\\Rightarrow\ E=\dfrac{2.24}{2}=1.12$

Hence, the margin of error is 1.12 .

5 0

3 years ago

Please help it’s multiple choice! No links

konstantin123 [22]

Answer:

Option A, B, and D are true.

Explanation:

A coefficient is the number that is being multiplied by a variable. For example, in 7b, 7 would be the coefficient.

Terms are the numbers used in the equation. For example, in 3 + 2, 3 and 2 would be the terms.

3n and 5m are not coefficients as there are variables included. 3n and 5m are examples of a variable.

A constant is a number that is not multiplied by a variable. For example, in 8x + 3 + 2b, 3 would be the constant.

Hope this helped :)

4 0

3 years ago

What Is 3 Over 4 Plus 7 Over 8 Plus 5 Over 6 ?<br><br> Please Help

sesenic [268]

First 3/4 = 18/24
7/8 = 21/24
5/6 = 20/24
18+21+20=59/24
Hope this helps too!

3 0

4 years ago