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PIT_PIT [208]
3 years ago
9

Simplify this algebraic expression completely.

Mathematics
1 answer:
Ede4ka [16]3 years ago
4 0
The answer is A

EXPLANATION:

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4. Simplify the expression:
Natalija [7]

Answer:

<h2>A. 2x² + 5x + 1</h2>

Step-by-step explanation:

7x^2-6+4x+7-5x^2+x\qquad\text{combine like terms}\\\\=(7x^2-5x^2)+(4x+x)+(-6+7)\\\\=2x^2+5x+1

3 0
3 years ago
During a fundraiser, Ms. Dawson’s class raised $560, which is 25% more than Mr. Casey’s class raised. How much money did Mr. Cas
evablogger [386]

Answer:

$420

Step-by-step explanation:

To work this out you would need to find the 25% decrease of 560. To do this you would first divide 25 by 100, which gives you 0.25. Then you would minus 0.25 from 1, which gives you 0.75. This is because when finding percentage decreases you would first have to convert it into a decimal. Then you would have to minus it from 1 , to make sure that it will be a 25% decrease not a 75% decrease. Then you would multiply 560 by 0.75, which gives you 420.

1) Divide 25 by 100.

25/100=0.25

2) Minus 0.25 from 1.

1-0.25=0.75

3) Multiply 560 by 0.75.

560*0.75=$420

5 0
3 years ago
Set a = 3 and k = 1. Use the slider to manipulate M. What happens to the graph when M is negative?
ANEK [815]

Answer:

C (reflection across the x access)

Step-by-step explanation:

I got it right on edge

5 0
3 years ago
The length of one leg of a right triangle is 24ft and the length of the hypotenuse is 40ft what is the length of the other leg
lukranit [14]
Use formula a squared equals to c squared minus b squared

40^2-24^2 is 1024

Square root of 1024 is 32.0
8 0
4 years ago
Read 2 more answers
Use the grouping method to factor this polynomial completely 3x^3+12x^2+2x+8
krok68 [10]

Answer:

(x+4)(3x^2 + 2)

Step-by-step explanation:

3x^3+12x^2+2x+8

3x^2(x + 4) + 2(x + 4)

(x+4)(3x^2 + 2)

3 0
3 years ago
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