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3 years ago

Which of the following could be the perimeter of a rectangle with an area of 18 square centimeters?

Mathematics

1 answer:

otez555 [7]3 years ago

5 0

Answer:

The correct answer is c) 18 centimeters

Step-by-step explanation:

Given:

A = 18 cm²

We know that the formula for calculating area of a rectangle is

A = a · b where a is length and b is width

Possible choices is 6 · 3 and 9 · 2

Formula for calculating perimeter is

P = 2 ( a + b)

P₁ = 2 (6 + 3) = 2 · 9 = 18 cm²

P₂ = 2 (9 + 2) = 2 · 11 = 22 cm²

The obvious choice is P₁ = 18 cm²

God with you!!!

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9⋅(3+5)+8÷2

Slav-nsk [51]

Answer:

Step-by-step explanation:

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2 years ago

85% of 2500m pls calculate this

mars1129 [50]

Answer:

2,125m

Step-by-step explanation:

85% = 85/100

85/100 = x/2500m

Solve by cross multiplying

85(2500) = 100(x)

212,500 = 100x

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x = 2,125m

Hope this helps :)

8 0

2 years ago

Read 2 more answers

Please help me with this <br> Thanks

alexira [117]

So you make them the same common denominator
As you see, 2/10 = 8/40
2/4 = x/40, multiply by 10
2/4 = 20/40
Then add because same denominator
Now you would get:
8/40 + 20/40 = 28/40

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3 years ago

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graph of a function is alone that passes through the points (0,1) and (3,10) write an equation in the form y=Mx+b. For this func

nadya68 [22]

Answer:

y = 3x + 1

Step-by-step explanation:

(0,1) so that is the b

the rate of change is 9/3 so the m is 3

8 0

2 years ago

Find the coefficient of the x7y2term in the binomial expansion of (x+y)^9

statuscvo [17]

Answer:

Step-by-step explanation:

first, see the formula in the attached picture.

now, by applying that formula we get :

the coefficient of the x7y2 is :

9C7 = 36 (you can either use a calculator or just the algebraic formula)

8 0

2 years ago