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boyakko [2]
3 years ago
13

Question 3 (3 points) Solve 8 = 2x + 4. (3 points)

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
5 0

X=2

-4 on both sides

4=2x

divide by 2 on both sides

X=2

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What number must be added to the expression below to complete the square? X^2-7x
Yuki888 [10]

Answer:

49/4

Step-by-step explanation:

x² -7x +(7/2)²=(x-7/2)²

x²-2x·7/2+ (7/2)²=(x²-7/2)²

(7/2)²=49/4

3 0
3 years ago
For f(x) = 24-2x, find f(2) and find x such that f(x) =10
Svetradugi [14.3K]

f(x) = 24 - 2x


f(2) This means that x is 2, so you can plug in 2 for x

f(x) = 24 - 2x

f(2) = 24 - 2(2)

f(2) = 24 - 4

f(2) = 20


To find x when f(x) = 10, you can do:

f(x) = 24 - 2x             [substitute/plug in 10 for f(x)]

10 = 24 - 2x    Subtract 24 on both sides

-14 = -2x          Divide -2 on both sides

7 = x


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4 years ago
What is the hypotenuse of a right triangle that has legs of 12x and 9x
AURORKA [14]

Answer: 15

Step-by-step explanation:

5 0
3 years ago
What is the simplest form of 4 square root of 81x8y5 ?
Dafna1 [17]
The simplified answer and the solution is listed below:

\sqrt[4]{81 x^{8}  y^{5} }  \\  \\ 
= \sqrt[4]{(3)^{4} x^{8}  y^{5}  }  \\  \\ 
= \sqrt[4]{(3 x^{2} y)^{4} y}  \\  \\ 
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7 0
3 years ago
Heed help math sucks
adelina 88 [10]

Answer:

the selected answers are correct

5 0
3 years ago
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