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AleksAgata [21]
3 years ago
13

Please help If you know the answer!!

Mathematics
1 answer:
prisoha [69]3 years ago
4 0

Answer:

-3 +8a

Step-by-step explanation:

(3-8a) *(-1)

Distribute

3*-1  -8a*-1

-3 +8a

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PLEASE HELP I WILL MARK YOU BRAINLIEST. FIND THE AREA
Mandarinka [93]

Answer:

<em>The family will need to purchase 187 square ft carpeting.</em>

Step-by-step explanation:

<u>Area of Rectangles</u>

Given a rectangle with width W and length H, the area is calculated as follows:

A = W * H

The new carpet of the family has the shape provided in the figure. We have completed the shape to add some missing dimensions by adding and subtracting the given lengths. Please refer to the attached image.

The total area of the carpet is the sum of the areas of three rectangles.

The rectangle at the bottom has dimensions 3 ft x 20 ft, thus its area is:

A1 = 3 ft * 20 ft = 60 square ft

The rectangle at the middle has dimensions 3 ft x 17 ft, thus its area is:

A2 = 3 ft * 17 ft = 51 square ft

The rectangle at the top has dimensions 4 ft x 19 ft, thus its area is:

A3 = 4 ft * 19 ft = 76 square ft

The total area of the carpet is:

A = 60 square ft + 51 square ft + 76 square ft

A = 187 square ft

The family will need to purchase 187 square ft carpeting.

7 0
3 years ago
Select proportional or not proportional to correctly classify the pair of ratios. 1.2/3 and 1.8/4.5
Gnesinka [82]

Answer:

Proportional.

Step-by-step explanation:

Find the cross products. If they are same, then they are proportional.

\dfrac{1.2}{3} = \dfrac{1.8}{4.5}

Cross multiply,

1.2 * 4 .5       =         3*1.8

      5.40      = 5.4

So, they are proportional.

Or

Multiply the numerator and denominator of 1.2/3 by 1.5

\dfrac{1.2*1.5}{3*1.5}=\dfrac{1.8}{4.5}

From this we come to know they are proportional

Or

1.2 : 3 :: 1.8 : 4.5

Product of means = 3*1.8 = 5.4

Product of extremes = 1.2*4.5 = 5.4

Product of means = product of extremes. So, they are proportional.

6 0
2 years ago
Read 2 more answers
Number 4 only plzzz help asap its due tomorrow
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B:
i=43 degrees
ii= 2 minutes
C:
10 degrees per minute
Sorry that's all I got
7 0
3 years ago
Write a function rule for the table. (b is incorrect so please choose one of the other 3 answers.)
pochemuha

Answer: D

Step-by-step explanation: payment equals to money earned per hour (p=6.25h).

6 0
2 years ago
4(h+11)-15<br> The solution
skad [1K]

Answer:

=4h+29

Step-by-step explanation:

I hope this helps you

7 0
3 years ago
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