MATHEMATICS MIDDLE SCHOOL

What is the difference of the two polynomials?

(9x2 + 8x) – (2x2 + 3x)

Answers

Answer 1
Answer:

Answer:

(9x² + 8x) - (2x² + 3x)

= 7x² + 5x

Step-by-step explanation:

(9x² + 8x) - (2x² + 3x)

open the bracket

= 9x² + 8x - 2x² - 3x

collect like terms

= 9x² - 2x² + 8x - 3x

= 7x² + 5x
Answer 2
Answer: (9x^2+8x)-(2x^2+3x)
9x^2+8x-2x^2-3x
7x^2+5x

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On a coordinate plane how can a equation of the line be identified as proportion or nonproportional

Answers

I think the equation of the line can be identified as a proportion because if it was non-proportion, there would be no equation. Hope it helps!

what is the result if you multiply a number of cups by 8 ounces/1 cup and then multiply the result by 1 cup/8 ounces

Answers

You will get the same number of cups because you are multiplying by 1, which equals the same number you multiplied.

150 in. = ___ ft ___ in.

Answers

150 in. = 12 ft. 6 in.
ANSWER: 150 = 12.5 feet

Im also stuck on this

Answers

The box-and-whisker plot is just a fancy way of dividing stuff into quarters.

1/4 (a quarter) of the tanks use 350-450 gallons.
1/4 use 450-500 gallons.
1/4 use 500-600 gallons.
1/4 use 600-750 gallons.

Two of those are above 500.
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The volume of a box is 240 inches3. What is the width of the box. The height is 6 inches and the length is 10 inches. Choose from 60in, 4in, 18in, 8in

Answers

6 * 10 = 60
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If LMN=XYZ, which congruences are true by CPCTC? Check all that apply

Answers

Answer:

A) <Z = <N

C) ML = YX

E) <X = <L


Step-by-step explanation:

ΔLMN ≅ ΔXYZ

<L = <X

<M = <Y

<N = <Z

LM = XY

MN = YZ

LN = XZ

so answers:

A) <Z = <N

C) ML = YX

E) <X = <L
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