2 years ago

Someone please help me i literally cant do geometry

Mathematics

1 answer:

mote1985 [20]2 years ago

4 0

Answer:

Just fail it.

Step-by-step explanation:

Sleep in class

Talk to friends

Get put into e2020 and get ALL the answers off of here.

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380% of what is 99? (Round to the nearest whole number)

scoray [572]

Answer:

Step-by-step explanation:

<u>Let the number be x</u>

380% of x is 99
x*3.8 = 99
x = 99/3.8
x = 26 rounded to the nearest whole number

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nydimaria [60]

Answer:

2x+12

Step-by-step explanation:

add the 7 and the 5, you don't need to answer the equation you just need to shorten the equation.

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Please answer this question as fast as you can

WITCHER [35]

Answer:

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Step-by-step explanation:

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3 years ago

Given the polynomial 2x3 + 18x2 − 18x − 162, what is the value of the coefficient 'k' in the factored form?2x3 + 18x2 − 18x − 16

s344n2d4d5 [400]

Answer:

$k=3$

Step-by-step explanation:

Let

$f(x)=2x^3+18x^2-18x-162$

We factor 2 to obtain;

$f(x)=2(x^3+9x^2-9x-81)$

We factor the polynomial within the parenthesis by grouping.

$f(x)=2(x^2(x+9)-9(x+9)$

$f(x)=2(x^2-9)(x+9)$

$f(x)=2(x^2-3^2)(x+9)$

We apply difference of two squares on the second factor: $x^2-3^2=(x-3)(x+3)$

$f(x)=2(x+3)(x-3)(x+9)$

We now compare to;

$f(x)=2(x+k)(x-k)(x+9)$

It is now obvious that $k=3$

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3 years ago

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