Answer:
4d-16/1, 8d-32/2, 12d-48/3, etc.
Step-by-step explanation:
Just throw a denomiator under the expression and adjust the expression accordingly.
Answer:
A is closer to 1/2
Step-by-step explanation:
2/15 + 1/3 = ?
Make the denominator equal
2/15 + 5/15 = 7/ 15
6/7 - 1/3
MAke the denominator equal
18/21 - 7/21 = 11/21
MAke the denominator equal
147/315
165/315
Exactly half is 157.5 / 315
165 - 157.5 = 7.5
157.5 - 147 = 10.25
That means that A is closer to half

Recall that

, which means

Since

, and

, it follows that

too, so you take the positive root:

Therefore
Answer:
Step-by-step explanation: