2 years ago

Please help me i need help :/

Mathematics

1 answer:

posledela2 years ago

3 0

Answer:

A is perpendicular with C, but NOT B. B is also perpendicular but not with A.

Step-by-step explanation:

Lines have to form a 90 degree angle with another line to be perpendicular, and you can use that judgement to figure out which one is perpendicular.

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elaine's mother is now 38 years old. seven years from now she will be five times as old as elaine will be then. write and solve

vfiekz [6]

In seven years her mother will be 38 +7 = 45 years old.

She will be 5 times as old, so divide 45 by 5: 45/5 = 9. Elaine will be 9 years old then, so she is 9-7 = 2 years old now.

5 0

3 years ago

Q + 5/9= 1/6 from big ideas mathbook

Alika [10]

9We have such eqation
Q $+ \frac{5}{9} = \frac{1}{6}$ /*9 (multiply both sides by 9)
9Q+5= $\frac{9}{6}$ /-5 both sides
9Q= $\frac{9}{6}- 5$
9Q= $\frac{9}{6}- \frac{5*6}{6}$
9Q= $\frac{9-30}{6}$
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