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Nadusha1986 [10]
1 year ago
5

Do ratios 15:5 and 6:2 form a proportion?

Mathematics
1 answer:
mrs_skeptik [129]1 year ago
7 0

For two ratios to form a proportion they have to be equal.

To see if two ratios are equal we express them in their simplest form.

In this case we notice that in the first ratio both numbers are multiples of five, then:

15\colon5=3\colon1

In the second case we notice that both numbers are multiples of 2, then:

6\colon2=3\colon1

Since both ratios can be simplified to the same final ratio, they form a proportion.

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SCORPION-xisa [38]

Answer:

(y + 14)(y - 14)

Step-by-step explanation:

A difference of squares has the general form

a³ - b² and factors as

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Given

y² - 196

y² = (y)² ⇒ a = y and 196 = 14² ⇒ b = 14

y² - 196

= y² - 14² = (y + 14)(y - 14) ← difference of squares

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