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Andrei [34K]
2 years ago
14

7.

Mathematics
1 answer:
olga_2 [115]2 years ago
6 0

Answer:

D

Step-by-step explanation:

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kiruha [24]

Answer:

8x

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Step-by-step explanation:

3 0
3 years ago
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Factor: (a+3)^2 -a(a+3)
lutik1710 [3]

Answer:

3(a +3)

Step-by-step explanation:

(a+3)^2 -a(a+3)

FOIL

a^2 +3a+3a+9 -a(a+3)

Distribute

a^2 +3a +3a +9 -a^2 -3a

Combine like terms

3a +9

FACTOR out a+3

(a+3)( a+3 -a)

(a+3) (3)

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6 0
2 years ago
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Please help thank you so much
Licemer1 [7]

Answer:

\Huge\boxed{x=15}

Step-by-step explanation:

Hello There!

The angle labeled 6x is a right angle

If an angle is formed using the diameter of a circle then the opposite angle of that side is a right angle

So 6x = 90

isolate the variable

divide each side by 6

90/6= 15

6x/6=x

we're left with x = 15

5 0
3 years ago
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72% of ______ days is 18 days.
maks197457 [2]

Answer:

25 days

Step-by-step explanation:

lets the blank = x

Convert 72% to decimal: 0.72

0.72x = 18

x = 18/0.72

x = 25

-Chetan K

4 0
2 years ago
Subtract -7x^2+4x+2−7x 2+4x+2 from x^2-3x 2 −3.
expeople1 [14]

Answer:

The answer is 4

Step-by-step explanation:

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