3 years ago

Why is it important to represent these unknown values with variables

1 answer:

7 0

As created (the concept) by Descartes, a variable is an alphabetic character used to represent unknown values. They are extremely useful when solving algebraic calculations allowing us to solve a range of calculations in simpler computations.

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rosijanka [135]

Let's solve this step-by-step! :)

-(3/2) * 3

= -(9/2)

I hope this helped!! :D

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Using division to find ratios that are equivalent to 40:28

GrogVix [38]

Answer: 10:7

Step-by-step explanation:

40:28=10*7

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3 years ago

The variables A, B, and C represent polynomials where A = x2, B = 3x + 2, and C = x – 3. What is AB – C2 in simplest form?

Bingel [31]

AB - C2 = (x2)(3x + 2) - (x-3)2
AB - C2 = 3x3 + 2x2 - (x2 -6x +9)
AB - C2 = = 3x3 + 2x2 - x2 + 6x - 9
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I don’t know if I should put the parentheses around the number 4 or not

tresset_1 [31]

Answer:

you only put a parenthesis around a number if it is negative

Step-by-step explanation:

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3 years ago

The vertice of a triangle is located at N (2, -5 ) and the image vertice is at (5,2 ) which rigid transformation occurred ?

dalvyx [7]

Answer:

Transformation 3 across to the right and -7 down.

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2 years ago