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Vsevolod [243]
3 years ago
10

What values of b satisfy 3(2b + 3)2 = 36?

Mathematics
2 answers:
alexira [117]3 years ago
4 0
To find the answer, you need to solve for b.

2(2b + 3) = 12  divide both sides by 3
2b + 3 = 6  divide both sides by 2
2b = 3  subtract 3 from both sides
b = 1.5  divide both sides by 2

b = 1.5 satisfies the equation. if you plug 1.5 in, you get that the equation is true.
zaharov [31]3 years ago
3 0

Answer:

Everyone is simplifying too far. The answer is A. b = (-3 +- 2 square root 3) / 2

Step-by-step explanation:

+-square root 3 - 3/2 is correct but that is not one of the options.

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Determine the value of X
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Answer:

The value of x is 15 ⇒ answer D

Step-by-step explanation:

* Lets talk about dilation

- A dilation is a transformation that changes the size of a figure.  

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- The scale factor, measures how much larger or smaller  

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* Now lets solve the problem

∵ D (o, k) (x , 9) → (-10 , -6)

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∴ -6 = k × 9 ⇒ divide both sides by 9

∴ k = -6/9 = -2/3

- Lets find x by same way

∵ -10 = -2/3 × x ⇒ divide both sides by -2/3

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∴ x = -10 × (-3/2) = 30/2 = 15

∴ The x-coordinate of the point before dilation is 15

* The value of x is 15

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