11 and 12 are called bases of the exponents and only when bases are the same can the exponents be added.
x²• x³=x^(2+3)=x^5
When bases are not the same but the exponents are, you multiply bases and keep same exponent.
12³•11³=(12•11)³=132³
Answer:
8 Wallets cost 8 * 43 = 344 $
Step-by-step explanation:
The text provides us with the following system:
1. B = 2W + 58
2. 632 = 2B + 8W
Which can be re-evaluated to:
1. B - 2W = 58
2. 2B + 8W = 632
We multiply 1. with 2 and get:
1. 2B - 4W = 116
We then subtract 1. from 2. and get:
12W = 516 --(:12)--> W = 43
We then insert W = 43 into 1.:
B = 2*(43) + 58
--> B = 86 + 58 = 144
Answer:
148cm^2
Step-by-step explanation:
The formula for surface area of a rectangular prism is 2(hl)+2(hw)+2(wl).
we just plug in the values.
2(6 x 5) + 2(6 x 4) + 2(4 x 5)
= 2(30) + 2(24) + 2(20) then simplify
= 60 + 48 + 40
= 148
Answer:
86,664 randomly selected U. S Adults
Step-by-step explanation:
The sample is a subset of the population, that is a representative observation which is chosen from a larger population usually used in place of the population due to various reasons which may hamper the use of the entire population on a certain research project. Here, the population of interest is the entire U.S adult.
The subset of the population employed is the 86,664 randomly sampled US adults, this is called the sample as it representative of the population of interest.
