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spayn [35]
3 years ago
7

Question is in picture

Mathematics
1 answer:
-Dominant- [34]3 years ago
6 0
A^2 + b^2 = c^2
9^2 + 12^2 = 225
square root of 225 is 15
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Jerome tries to find the value of the expression 3 - 6 + 5 by first applying the commutative property he rewrites the expression
Lana71 [14]
  • Wrong in sign change

How?

  • In commutative law the sign doesn't change whenever it is applied.

Thus

\\ \sf{:}\implies 3-6+5

\\ \sf{:}\implies 3\underline{+5-6}

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Insert three arthimetic means between 4 and 10
lapo4ka [179]
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Solve -2/3x > 8 or -2/3x < 4.
vekshin1
<h3>Answer: Choice C</h3>

{x | x < -12 or x > -6}

=========================================================

Explanation:

Let's solve the first inequality for x.

(-2/3)x > 8

-2x > 8*3

-2x > 24

x < 24/(-2)

x < -12

The inequality sign flips when we divide both sides by a negative value.

Let's do the same for the second inequality.

(-2/3)x < 4

-2x < 4*3

-2x < 12

x > 12/(-2)

x > -6

The conclusion of each section is that x < -12 or x > -6 which points us to <u>choice C</u> as the final answer.

Side note: The intervals x < -12 and x > -6 do not overlap in any way. There's a gap between the two pieces. We consider these intervals to be disjoint. The number line graph is below.

8 0
2 years ago
Solve the equation. Two-thirds x = negative one-half x + 5 What is the first step to isolate the variable term on one side of th
FinnZ [79.3K]

Answer:

add 1/2x to both sides

multiply both sides by 6/7

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