Answer:
4 by 10
Step-by-step explanation:
4 times 10 is 40 (length times width)
4+4+10+20=28
Answer:
It's 8%
Step-by-step explanation:
3.20 divided by 40 = 0.08
0.08 = 8% therefore $3.20 divided by $40.00 = 8% sales tax
Answer:
x = -1
Step-by-step explanation:
log(-2x+9)= log(7-4x)
becomes:
-2x + 9 = 7 - 4x as long as these are not negative
2x + 9 = 7
2x = -2
x = -1
check
-2*(-1) + 9 = 2 + 9 = 11
ok
Answer:
a. possible sample size is 10
b. mean is 3
c standard deviation is 0.9
Step-by-step explanation:
Mean of any given set of numbers is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.
Standard deviation is a measure of the amount of variation or dispersion of a set of values.
Go to attachment for detailed analysis.