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wariber [46]
3 years ago
15

What does it mean to evaluate an expression in 5th grade

Mathematics
1 answer:
MrRa [10]3 years ago
3 0

Answer:

Usually it means to solve it. Sometimes they give you values to substitute in for variables (letters) in the math sentence/equation/expression.

Does that make sense?

Step-by-step explanation:

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A rectangle has a a perimeter of 72 ft. The length and width are scaled by a factor 3.5.
Ivanshal [37]
Perimeter of a rectangle:
P = 2 L + 2 W,  P = 72 ft
P ( new ) = 2* 3.5 L + 2 * 3.5 W = 3.5 * ( 2 L + 2 W ) = 3.5 P
P ( new ) = 3.5 * 72 = 252 ft
Answer:
The perimeter of the new rectangle is 252 ft.
7 0
3 years ago
Read 2 more answers
IS THIS A FUNCTION, AND WHY
shepuryov [24]

Answer:

Yes, it is a function

Step-by-step explanation:

It is a function because for every y value there is a different x value. We can also use the vertical line test to see if there are two points on the same line.

4 0
3 years ago
I need this before 10 so please answer quickly
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7 0
3 years ago
Why is it important to keep two sides of an equation balanced when solving?
Lady_Fox [76]

Answer:

An important property of equations is one that states that you can add the same quantity to both sides of an equation and still maintain an equivalent equation.  If you think of an equation as being like a balance scale, the quantities on each side of the equation are equal, or balanced.

Step-by-step explanation:

5 0
3 years ago
The edge of a cube measures 3.5 x 10 ^ -2 meters. What is the volume of the cube in cubic meters? WRITE Your ANSWERS IN SCIENTIF
Crank

The volume of given cube is: 4.29 * 10^{-5} cubic meters

Step-by-step explanation:

Volume of a cube is given by:

V = a^3

Given

Edge of the cube = 3.5*10^{-2}

Putting the value of edge

V = (3.5*10^{-2})^3\\V = 42.875 * (10^{-2})^3\\V = 42.9 * 10 ^{-2*3}\\V = 42.9 * 10^{-6}\\V = 4.29 * 10 * 10 ^{-6}\\V = 4.29 * 10^{-5}\ cubic\ meters

The volume of given cube is: 4.29 * 10^{-5} cubic meters

Keywords: Volume, cube, scientific notation

Learn more about scientific notation at:

  • brainly.com/question/10703930
  • brainly.com/question/10772025

#LearnwithBrainly

7 0
3 years ago
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