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Simora [160]
3 years ago
9

What is the quotient? StartFraction a minus 3 Over 7 EndFraction divided by StartFraction 3 minus a Over 21 EndFraction

Mathematics
2 answers:
kow [346]3 years ago
7 0

Answer:

the answer is -3

Step-by-step explanation:

Licemer1 [7]3 years ago
5 0

Answer:

The quotient is -3

Step-by-step explanation:

we have

\frac{a-3}{7}:\frac{3-a}{21}

Multiply in cross

\frac{(a-3)21}{(3-a)7}

Simplify

Remember that

\frac{21}{7}=3

substitute

\frac{(a-3)3}{(3-a)}

we know that

(3-a)=-(a-3)

substitute

\frac{(a-3)3}{-(a-3)}=-3

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q       s

--- = ----   This results in 10q=rs.

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Also, since RST is a right triangle, 4^2 + s^2 = q^2.

Since QST is also a right triangle, s^2 + 10^2 = r^2.  

           4      s

Also:  ---- = -----    which leads to s^2 = 40

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Because of this, 4^2 + s^2 = q^2 becomes 16 + 40 = 56 = q^2

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Step-by-step explanation:

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