Which shows one way to determine the factors of x3 + 5x2 – 6x – 30 by grouping?

Answers

Answer 1

Answer: $x^(3) +5 x^(2) -6x-30= x^(2) (x+5)-6(x+5)=( x^(2) -6)(x+5)$
$=(x- √(6))(x+ √(6) ) (x+5)$

Answer 2

Answer:

Answer:

x(x2 + 5) – 6(x2 + 5)

Step-by-step explanation: because when u factor out you don't need to use the first number so you start with (x) and then you do multiplication

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Why does the moon goes through phases?A.
The moon rotates around its axis.

B.
The moon revolves around Earth.

C.
Earth rotates around its axis.

D.
Earth revolves around the sun.

Answers

Ccccccc don’t click the link they are hackers

It is because the moon revolves around Earth.

Hope it helps you...

Solve this inequality: j/4 – 8 < 4. A. j < –48 B. j < 48 C. j > –12 D. j < 12

Answers

$(j)/(4) - 8 \ \textless \ 4 \n \n (j)/(4) \ \textless \ 4 + 8 \n \n (j)/(4) \ \textless \ 12 \n \n j \ \textless \ 12 * 4 \n \n j \ \textless \ 48 \n \n$

The final result is: j < 48.

j/4 - 8 < 4

j/4 < 4 + 8
j4 < 12
j < 12 X 4
j < 48

Which algebraic expression represents the phrase “two times the quantity of a number minus 12”?

Answers

Answer: 2(n - 12)

n is “the number”

Step-by-step explanation:

Hope that helps :D

Answer:

2(n - 12)

Step-by-step explanation:

Which of the following statements about a plane is not true?A plane can be thought of as flat.
The surface of a plane is made up of points.
A plane can be seen.
A plane extends infinitely in all directions.

Answers

Answer:

The last one is the answer.

A metal washer is made by cutting out a circle 13.2 mm in diameter from a larger circle. To the nearest tenth, what is the area of the washer

Answers

The standard formula of area of the circle is (pi * r^2)
here r is radius.

So the radius of this washer is equal to 6.1 mm (13.2 / 2)
Therefore the area of the washer
pi * 6.1^2
116.9 mm^2

Jane worked 32 hours in one week. If she worked the same number of hours each day for 4 days, how many hours a day did she work? A. 8
B. 6
C. 10
D. 4

Answers

4x=32⇒ x=32/4⇒ x=8

the answer is A. 8

You need to divide, so 32/4=8, so your answer is A.8

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From a list of ten books, how many groups of 4 books can be selected