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3 years ago

Factor by grouping. a^2+2ab-24b^2

1 answer:

3 0

You can rewrite that as:

a^2-4ab+6ab-24b^2 then factor 1st and 2nd pair of terms.

a(a-4b)+6b(a-4b) so you have

(a+6b)(a-4b)

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Which of the following sets would have a graph with an open circle on 2 and a ray pointing left on the number line?

andreyandreev [35.5K]

Answer:

{x | x∈ R, x < 2}

Step-by-step explanation:

Given

Open circle on 2

Arrow pointing left

Required

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The arrow points to the left of -2 means that the number line represents numbers less than 2. i.e. < 2

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Alekssandra [29.7K]

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Step-by-step explanation:

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3 years ago

PLEASE ANSWER WILL GIVE 75 POINTS!!!!!

alexdok [17]

Answer:

$\frac{4}{33}$ and $\frac{1}{27}$

Step-by-step explanation:

We require 2 equations with the repeating numbers placed after the decimal point.

let x = 0.1212...... (1) ← multiply both sides by 10

100x = 12.1212.... (2)

subtract (1) from (2) thus eliminating the repeating numbers

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-------------------------------------------------------

let x = 0.037037....... (1) ← multiply both sides by 1000

1000x = 37.037037..... (2)

subtract (1) from (2) to eliminate the repeating numbers

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3 years ago