Answer:
7x - 5y = -5 this is the standard form
The mean = 2,000
s = Sigma ( standard deviation ) = 300
M - 2 s = 2,000- 2 * 300 = 2,000 - 600 = 1,400
M + 2 s = 2,000 + 2 * 300 = 2,000 + 600 = 2,600
Answer.
Useful life of light bulbs within 2 standard deviations of the mean is:
A ) Between 1,400 and 2,600 hours
Hi There!
Answer:
A.)$15.96
Step-by-step explanation:
3 1/3 * 2.99 = 9.96666666667
1 1/2 * 3.99 = 5.985
9.9666666666 + 5.985 = 15.9516666667 = $15.96
Hope This Helps :)
I could use the points so if you want to mark this as helpful that would be cool :)
Answer:
0.0125x or x/80
Step-by-step explanation:
Salary: x dollars per year
To find the pay per month, we divide the annual pay by 12.
The monthly pay is x/12
15% of the first month's salary is
15% of x/12 = 0.15 * x/12 = 0.0125x = x/80
Answer: 0.0125x
