What are four equivalent expressions for 42+18

Mathematics

1 answer:

Pavel [41]3 years ago

5 0

21+21+9+9=
2(9+21)=
Hope this helps

You might be interested in

A line segment connecting any two opposite Vertex of a quadrilateral

Wewaii [24]

Answer:

As applied to a polygon, a diagonal is a line segment joining any two non-consecutive vertices. Therefore, a quadrilateral has two diagonals, joining opposite pairs of vertices. For any convex polygon, all the diagonals are inside the polygon, but for re-entrant polygons, some diagonals are outside of the polygon.

Step-by-step explanation:

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=x%28x%5E%7B2%7D%20%2B2x%20%2B4%29%20-%28%20x%5E%7B2%7D%20%2B2x%20%2B%204%29%20.%202%3D0" id="T

Svetach [21]

We have:

$x(x^{2} +2x+4) - (x^{2} +2x+4).2 =0\\(x^{2} +2x+4)(x-2)=0\\x^3-8=0 \\x^3=8\\x^3=2^3\\x=2$

ok done. Thank to me :>

7 0

2 years ago

Use the elimination method to solve the system of equations. Choose the correct ordered pair.

vfiekz [6]

Correct answer is (d) (3,4)

7 0

4 years ago

Read 2 more answers

One maid can clean the house four times faster than another. Working together they can clean the entire house in 4 hours. How lo

stich3 [128]

5 hours long would it take the faster maid cleaning alone.

What is a linear equation in math?

A linear equation only has one or two variables.
No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
When you find pairs of values that make a linear equation true and plot those pairs on a coordinate grid, all of the points lie on the same line.

Suppose, time taken by faster maid be x , hours.

So, time taken by slower maid ,

$x_{2} = 4x_{1}$ ( 4 time faster maid )