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il63 [147K]
4 years ago
15

Simplify the following: 3x+2y+7-5x+7y

Mathematics
2 answers:
const2013 [10]4 years ago
3 0
<span>3x+ 2y+7 -5x+7y
= -2x + 9y + 7

hope it helps</span>
WARRIOR [948]4 years ago
3 0
9y-2x+7   

3x-5x= -2x

2y+7y=9y                                                                                                                                                                       
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Replace ∗ with a monomial so that the derived equality will be an identity: (15y + ∗)^2 = 225y^2+12x^3y+0.16x^6
Kitty [74]

Answer:

<h2>∗ = 0.4x³</h2>

Step-by-step

We have :

2×(0,4)×15=12

(0,4)^2=0,16

(15y + ∗)^2 = 225y² + 12x³y + 0.16x⁶

                 = (15y)² + 2×(15y)×(0.4x³) + (0.4x³)²

then

∗ = 0.4x³

5 0
3 years ago
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Help please please please
ddd [48]

Answer:

square root

Step-by-step explanation:

Hope this helps :)

5 0
3 years ago
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Which equations pass through the points (1, 3) and (7 9)?
ddd [48]

Answer:

f(x)=x+2 Passes through

x-y=2 DOES NOT pass through

Step-by-step explanation:

Method- plug in x and see if the y matches the points. (1,3) (7,9)

f(x)=x+2

f(1)=1+2=3

f(7)=7+2=9

Matches!

x-y=2

1-y=2 --> y=-1

Does not match

8 0
1 year ago
Using the quadratic formula to solve 2x2=4x-7 , what are the values of x?
Firdavs [7]

Answer: no solution

Step-by-step explanation:

2x2=4x-7

4x=4x−7

0=−7

Since 0=−7 is false, the answer is no solution.

8 0
4 years ago
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gogolik [260]

Answer:

3

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5 0
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