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Nadusha1986 [10]
3 years ago
9

Factor completely x3 − 6x2 − 5x + 30.

Mathematics
2 answers:
Gennadij [26K]3 years ago
8 0

Answer:

(x - 6) (x² - 5 )

Step-by-step explanation:

Lilit [14]3 years ago
4 0

Answer:

Step-by-step explanation:

x³ - 6x² - 5x + 30 = x³ - 6x² - 5x + 5*6

Take x² from first two terms and (-5) from third &  fourth term

= x²*(x - 6) - 5 (x - 6)

= (x - 6) (x² - 5 )

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The answer should be 9...

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Harold bought 3 points of red apples and 4.2 pounds of green apples from a grocery store, where both kinds of apple are 1.75 a p
andrew11 [14]

Answer:

12.6

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3 years ago
Read 2 more answers
CosA.cos2A.cos4A=sin8A/8sinA​
alexgriva [62]

I assume you're supposed to establish the identity,

cos(A) cos(2A) cos(4A) = 1/8 sin(8A) / sin(A)

Recall the double angle identity for sine:

sin(2<em>x</em>) = 2 sin(<em>x</em>) cos(<em>x</em>)

Then you have

sin(8A) = 2 sin(4A) cos(4A)

sin(8A) = 4 sin(2A) cos(2A) cos(4A)

sin(8A) = 8 sin(A) cos(A) cos(2A) cos(4A)

==>   sin(8A)/(8 sin(A)) = cos(A) cos(2A) cos(4A)

as required.

3 0
3 years ago
Given the equation -2x + 8y = 24, determine the x- and y-intercepts. PLZ HELP???
attashe74 [19]

Answer:

x=(-12,0)

y=(0,3)

Step-by-step explanation:

<u><em>x-intercept</em></u>

-2(x-4y)=24

x-4y=-\frac{24}{2}

x-4y=-12

x=4y-12

x=4(0)-12

x=-12

<u><em>y-intercept </em></u>

-2(x-4y)=24

x-4y=-\frac{24}{2}

x-4y=-12

-4y=-12-x

y=-\frac{-12-x}{4}

y=-\frac{-12-(0)}{4}

y=\frac{12}{4}

y=3

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3 years ago
This frequency table represents the number of cars owned by each family on a street.
Ilya [14]

Step-by-step explanation:

1+2+3+4+5=14 divided by 5=2.8 so, A.would be your answer.

6 0
3 years ago
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