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3 years ago

Find and simplify an expression for the area of three rows of m squares with side lengths of m centimeters. Please help

Mathematics

1 answer:

Anna [14]3 years ago

3 0

Answer:

3m²

Step-by-step explanation:

A square is quadrilateral (four sides) in which all sides are equal. Also, opposite sides are parallel to one another and all the four angles in a square are 90 degrees each.

The area of a square is given as:

Area = length * length

Given that the square has side lengths of m centimeters, therefore:

The area of each square = m cm × m cm = m² cm²

There are three rows of m squares, hence the total number of square is:

Total square = 3 rows * m squares per row = 3m squares

The total area of the square = area of each square * total number of square = m² * 3m = 3m² cm²

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1 year ago

An element with mass 800 grams decays by 8.2% per day. How much of the element is remaining after 15 days,

Serjik [45]

Given:

The initial mass of an element is 800 grams.

Decay rate = 8.2% per day

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To find:

The remaining element after 15 days.

Solution:

The exponential decay model is

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3 years ago

Which of these is a set of inputs and outputs for the function f(x) = 2x + 4?

Fed [463]

Answer:

Step-by-step explanation:

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6 0

3 years ago

Read 2 more answers

What is the answer to this problem -2x – 4 < 3x + 21

horsena [70]

Start with

$-2x-4 < 3x+21$

Add 2x to both sides:

$-4 < 5x+21$

Subtract 21 from both sides:

$-25 < 5x$

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2 years ago

Word problem-in a movie script time traveler wanted to save his wife who died the same year. The couple was the dam age. However

drek231 [11]

Represent Age of Time Traveler =========> X

Solve:

x = 3(x - 20 )

Step 1: Simplify Both sides of equation:

x = 3(x - 20 )

x = (3) (x) + (3) ( - 20 ) (Distribute ):

x = 3x + - 60

x = 3x - 60

Step 2: Subtract 3x from both sides:

x - 3x = 3x - 60 - 3x

- 2x = - 60

Step 3: Divide both sides by -2:

- 2x / - 2 = - 60 / - 2

x = 30

Answer: Our Time Traveler is 30 years old.

Hope that helps : )

5 0

3 years ago