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alexandr402 [8]
3 years ago
7

A=1/2b and 3b:4c, find a:c Can anyone help?

Mathematics
1 answer:
Hitman42 [59]3 years ago
6 0

Answer:

3a: 2c

Step-by-step explanation:

a= \frac{1}{2}b \\2a= b\\\\

6a = 3b\\3b : 4c \\6a :4c\\\\=\\3a : 2c

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Step-by-step explanation:

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Consider the quadratic equation x2 − 6x = 16.
e-lub [12.9K]

Answer:

  1. C) (x − 3)2 = 25
  2. C) Factor out 4 from 4x2 + 40x.

Step-by-step explanation:

1. Adding the square of half the x-coefficient to both sides of the equation will "complete the square." That square is 9, so the result on the right is 16+9 = 25. Only selection C matches.

___

2. To complete the square, you want to be able to put the quadratic into the form a(x -h)^2 = -k. For the purpose, it is most convenient to first factor "a" from the given quadratic. Then you can determine "-h" to be half the x-coefficient inside the parentheses.

Here, that looks like ...

  4(x² +10x) = 80 . . . . . . . . . . step 1: factor out 4

  4(x² +10x +25) = 180 . . . . . add 25 inside parentheses and the same number (4·25) on the right side of the equation

  4(x +5)² = 180 . . . . . . . . . . . written as a square

8 0
3 years ago
Tevon,leah,and beth are playing a computer game. Trevon scored -8. Beth's score was 3/4 of trever's score, and leah's score was
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Answer:

Trevon scored -8.

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Answer:

Step-by-step explanation:

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point of intersection is (8/3,14/3,8/3)

and ratio of division is 2:1

5 0
3 years ago
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Step-by-step explanation:

Well its was really simple your welcome

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