3449995000 is what I got, I did 3.45x10^9 and then used that number and subtracted the answer from 0.5x10^4 to get the final answer, if that makes any sense.

4 0

2 years ago

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Cell Phone Plus and Phones R Us offer special prices for new customers. Each cell phone company’s advertisement is shown below.

AVprozaik [17]

2 months, 50+15x =60+10x when x=2

3 0

3 years ago

Cam has a piece of plywood that is 6 7/8 feet wide. He is going to cut shelves from the plywood that are each 1 1/6 feet wide. W

jeyben [28]

6 7/8= 55/8
6 1/6= 7/6
first find common denominators
55/8 * 3= 165/24
7/6 * 4= 28/24
165/24 divided by 28/24 is the same as 165/24 time 24/28
so that equals 3960/672
which equals 5.8928
so estimates about 5 shelves<span />

7 0

3 years ago

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The mean of a population being sampled is 64, and and the standard deviation is 6. If the sample size is 50, the standard error

Fiesta28 [93]

Given:
mean = 64
standard deviation = 6
sample size = 50

Standard error of the sample mean = standard deviation / √sample size

Standard error = 6 / √50 = 6/7.07 = 0.85

6 0

3 years ago