3 years ago

Select all ratios equivalent to 2:6. A. 6:2 B.27:9 C.16:48

Mathematics

1 answer:

AlladinOne [14]3 years ago

6 0

Answer:

Step-by-step explanation:

since after you simplify c u end up with 2:6

Choice C

16:48

divide by 2

8:24

divide by 2

4:12

divide by 2

2:6

choice A

6:2

divide by 2

3:1

Choice B

27:9

divide by three

9:3

divide by three

3:1

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How to solve 2x^2 -x -6 =0

gtnhenbr [62]

Answer:

Step-by-step explanation:

$2x^2-x-6=0\\\\2x^2+3x-4x-6=0\\\\x(2x+3)-2(2x+3)=0\\\\(2x+3)(x-2)=0\iff2x+3=0\ \vee\ x-2=0\\\\2x+3=0\qquad\text{subtract 3 from both sides}\\2x=-3\qquad\text{divide both sides by 2}\\\boxed{x=-1.5}\\\\x-2=0\qquad\text{add 2 to both sides}\\\boxed{x=2}$