3 years ago

Plz help me with questions 9,10,11. Plzz

Mathematics

1 answer:

SashulF [63]3 years ago

6 0

Hope this helps. if you need any further assistance, just let me know.

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Is 8/10 greater than 1/2

Kay [80]

Yes because 8/10 as a decimal is 0.8 while 1/2 is 0.5

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3 years ago

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Simplify the following polynomial expression. (5x^4 - 9x^3 + 7x - 1) + (-8x^4 + 4x^2 - 3x + 2) - ( -4x^3 + 5x - 1)( 2x - 7)

Lady bird [3.3K]

Answer: $5x^{4}-37x^{3}-6x^{2} +41x-6$

Step-by-step explanation:

1. You must apply the Distributive property. You need to remember the product property of exponents: If you multiply powers with the same base, you must add the exponents. Them you have:

$=5x^{4}-9x^{3}+7x-1-8x^{4}+4x^{2}-3x+2-(8x^{4}+28x^{3}+10x^{2}-35x-2x+7)\\=5x^{4}-9x^{3}+7x-1-8x^{4}+4x^{2}-3x+2-8x^{4}-28x^{3}-10x^{2}+35x+2x-7$

2. Now, you must add the like terms. Then, you obtain the following result:

$=5x^{4}-37x^{3}-6x^{2} +41x-6$

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3 years ago

Solve the inequality. 4 + 9x > 8 − 3x

mestny [16]

Answer:

x > 1/3

Step-by-step explanation:

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3 years ago

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1. 7x = -x + 24<br> Solve for the variable

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7x = -x + 24
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Find 15 * 15 * 15 * 500 how does this compare to finding 45 x 500

andrew11 [14]

15 * 15 * 15 * 500 = 1,687,500. it's different from finding 45 * 500 because
15 * 15* 15 * 500 is the same as writing it as 15^3 * 500. This meaning you multiply the number 15 by itself 3 times, not add it 3 times, which is what
45 * 500 was showing. I hope this helped.

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3 years ago