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3 years ago

There are 5 students in class. each will be assigned a grade of a, b or

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

8 0

There could be five in each class.

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a rectangular lawn has an area of a^3 - 125. use the difference of cubes to find out the dimensions of the rectangle.

ANEK [815]

The area of a rectangle is the product of its dimensions

The dimensions of the rectangle are: $\mathbf{Length = a -5}$ and $\mathbf{Width = a^2 + 5a + 25}$

The area is given as:

$\mathbf{Area = a^3 - 125}$

Express 125 as 5^3

$\mathbf{Area = a^3 - 5^3}$

Apply difference of cubes

$\mathbf{Area = (a - 5)(a^2 + 5a + 5^2)}$

$\mathbf{Area = (a - 5)(a^2 + 5a + 25)}$

The area of a rectangle is:

$\mathbf{Area = Length \times Width}$

So, by comparison:

$\mathbf{Length = a -5}$

$\mathbf{Width = a^2 + 5a + 25}$

Read more about areas at:

brainly.com/question/3518080

6 0

2 years ago

Find the area of the figure to the nearest thousandth

riadik2000 [5.3K]

Answer:

Total Area = 236.715 sq ft

Step-by-step explanation:

this is a composite figure made up of a circle and a rectangle; find the area of each and then add them together

A(circle) = πr²

= π(7.5²)

= 176.715

A(rectangle) = 15(4) which is 60

Total Area = 236.715 sq ft

7 0

3 years ago

Can someone help me? i really need it :)

garri49 [273]

I hope you can understand my messy handwriting ‍

3 0

2 years ago

If k = 7 then find the value of 2k²

Leya [2.2K]

Answer:

Step-by-step explanation:

k = 7

2k^2

do the exponent

7 x 7 = 49

49 x 2 = 98

6 0

2 years ago

Read 2 more answers

Kayla used 3 cups of flour to bake 24 muffins. How many muffins can Kayla

MrRa [10]

Answer:

32 muffins

Step-by-step explanation:

24/3=8 8x4=32

32 muffins

6 0

3 years ago