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Akimi4 [234]
3 years ago
6

Helphelphelphelphelphelppppppp

Mathematics
1 answer:
n200080 [17]3 years ago
5 0

Answer:

Step-by-step explaSimplify the equation by finding the square root of both sides. √x2=x √0=0. x=0. Check: 02=0.

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5) –2x – 9y=-25<br> -4x – 9y=-23
notka56 [123]

Answer:

(-1,3)

Step-by-step explanation:

–2x – 9y=-25

-4x – 9y=-23

Multiply the second equation by -1

4x + 9y=23

Add this to the first equation

–2x – 9y=-25

4x +  9y= 23

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

2x        = -2

Divide each side by 2

2x/2 = -2/2

x = -1

Now we need to find y

4x+9y = 23

4(-1) +9y = 23

-4 +9y = 23

Add 4 to each sdie

-4+4 +9y = 23+4

9y = 27

Divide each side by 9

9y/9 = 27/9

y =3

5 0
3 years ago
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If f(x) = 3x + 2 and
Butoxors [25]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
7.5 Cheetah Speed and reasoning
Anika [276]

Answer: whats the queation

Step-by-step explanation:

3 0
2 years ago
Chords AC and DB intersect at point E. Find the value of x.
Elina [12.6K]

Answer:

the answer would be 9 so option B

4 0
3 years ago
At a sale, books are sold at $90.75 each, which is 75 percent of the original price. What is the original price
lions [1.4K]

\frac{75}{100}  =  \frac{90.75}{x}  \\ x = \frac{90.75 \times 100}{75}  =  \frac{9075}{75}   = 121
the answer is 121
6 0
3 years ago
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