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castortr0y [4]
3 years ago
10

Which two ratios form a proportion?

Mathematics
1 answer:
s2008m [1.1K]3 years ago
4 0

Answer:

02:3 and 12:18

Step-by-step explanation:

A proportion is formed when the larger ratio can be simplified to equal the smaller ratio:

#1

02:3 and 4:12

Reducing the larger ratio: 4:12=1:3

Hence, not a proportion.

#2

02:3 and 6:12

Reducing the larger ratio: 6:12=1:2

Hence, not a proportion.

#3

02:3 and 12:18

Reducing the larger ratio: 12:18=2:3

Hence, they form a proportion.

#4

02:3 and 12:18

Reducing the larger ratio: 12:36=1:3

Hence, not a proportion.

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Answer:

Step-by-step explanation:

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Answer:

The graph crosses the x-axis 2 times

The solutions are  x = -8  &  x = 4

Step-by-step explanation:

Qaudratics are in the form ax^2 + bx+ c

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Now, let's arrange this equation in this form:

4x=32-x^2\\x^2+4x-32=0

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We need to know the discriminant to know nature of roots. The discriminant is:

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Let's find value of Discriminant:

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The graph crosses the x-axis 2 times

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