Answer:
Since from the laws of exponents we have that x−n=1xn , it implies that we may write 18=8−1 . 18=123=2−3.
Step-by-step explanation:
Question 1:
Choir A - 129.5 = 130
Choir B - 130.1 = 130
Choir C - 130.8 = 131
Choir D - 129.8 = 130
Answer - Choir C
Question 2:
132 = 1/2x + 2(x - 9)
= 1/2(60) + 2(60 - 9)
= 30 + 102
= 132
60 - 9 = 51
Answer - The cost of a children's ticket is $51
Answer: 13x
Step-by-step explanation:
He multiply 13 by both side which caused a error
Answer:
The answer is 4th point
Step-by-step explanation:
c∝b
c = k(b)
Let c = 3
b = 1
3 = k(1)
k = 3
c = 3b
Try:
Let c = 12
12 = 3b
b = 4 (proven)