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Svetlanka [38]
2 years ago
14

Which properties were used to simplify the following expression? Select all that apply.

Mathematics
2 answers:
Alenkinab [10]2 years ago
6 0

Answer:

A P of Addition

Step-by-step explanation:

PilotLPTM [1.2K]2 years ago
6 0
Associative property of addition
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What are the roots of the polynomial equation x^2+8x-48=0
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<span> Given polynomial x^2+8x-48 = 0</span>

<span>x^2+12x-4x-48 = 0</span>

<span>x(x+12)-4(x+12) = 0</span>

<span>(x+12)(x-4) = 0</span>

<span>x+12 = 0</span>

Subtract 12 from each side.

<span>x+12-12 = 0-12</span>

<span>x = -12</span>

<span>and x-4 = 0</span>

Add 4 to each side.

<span>x-4+4 = 0+4</span>

<span>x = 4</span>

<span>Roots are -12,4.</span>

4 0
3 years ago
Hector has 3/4 hour to spend his homework. He wants to spend 1/3 of this time on math homework, 10 minutes of his time on readin
DENIUS [597]

Answer:

20 minutes

Step-by-step explanation:

Remember that

1\ h=60\ mi

we know that

Hector has 3/4 hour to spend his homework

Convert to minutes

\frac{3}{4}(60)=45\ min

so

1) He wants to spend 1/3 of this time on math homework

To find out the time on math homework, multiply 45 minutes by 1/3

45(\frac{1}{3})=15\ min

2) He wants to spend 10 minutes of his time on reading homework

3) He wants to spend the remaining time on science homework

The time spend on math homework plus the time spend reading homework, plus the time spend on his science homework must be equal to 45 minutes

Let

x ----> the time spend on his science homework

15+10+x=45

Solve for x

25+x=45\\x=45-25\\x=20\ min

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3 years ago
Which pairs of numbers has have a greatest common factor of 7
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14


need more letters
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3 years ago
The ratio of the areas of two similar rectangles is 1:4. What is the ratio of the corresponding sides?
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√1 : √4 = 1 : 2

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3 years ago
I giveeeeeeeeeeee brainlillstttttttttttt
Lana71 [14]

Answer:

after reflection over y axis

a 9,7

b 9,6

c 0,6

d 0,7

4 0
3 years ago
Read 2 more answers
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