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kow [346]
3 years ago
9

Choose the correct simplification and demonstration of the closure property given: (3x3 + 2x2 − 5x) − (8x3 − 2x2). 5x3 + 2x2 + 5

x; is a polynomial 5x3 + 2x2 + 5x; may or may not be a polynomial −5x3 + 4x2 − 5x; is a polynomial −5x3 + 4x2 − 5x; may or may not be a polynomial
Mathematics
2 answers:
cricket20 [7]3 years ago
4 0

Answer:

Answer C

−5x3 + 4x2 − 5x; is a polynomial

Step-by-step explanation:

you just use distributive property to simplify, and then you know the closure property demonstrates that when you are adding, subtracting, multiplying, or dividing two polynomials, they will remain polynomials.

pls mark branliest

JulsSmile [24]3 years ago
4 0

Answer:

the answer is c

Step-by-step explanation:

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8 0
4 years ago
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Samantha just opened a new restaurant. She earned $550 on the first day and $750 on the third day that she was open for business
mr Goodwill [35]

Answer:

Step-by-step explanation:

If Samantha's earnings continue to increase at the same rate, this means that her earning is increasing arithmetically.

If she earned $550 in the first day, we can say the first term is $550

If she earned $750 on the third day, we can say the third term is $750

For us to know by how much her money is increasing, we need to find the common difference d formed by the sequence

550, x , 750

T1 = 550

T2 = x

T3 = 750

Common difference d = T2-T1 = T3-T2

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Since x - 550 = 750 - x = d

x - 550 = 750 - x

Collect like terms

x+x = 750+550

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x = 1300/2

x = 650

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d = x - T1

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8 0
3 years ago
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Answer:

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step-by-step

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In a right triangle, angle C measures 40. the hypotenuse of the triangle is 10 inches long. what is the approximate length of th
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Since angle C is not 90 degrees, it's one of the acute angles
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Multiply each side by (10 inches):

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