Answer:
0.45576
Step-by-step explanation:
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
Standard Deviation = √variance
Mean = 50
= √9
= 3
z = 51 - 50/3
= 0.11111
Probability value from Z-Table:
P(x<51) = 0.54424
P(x>51) = 1 - P(x<51)
= 1 - 0.54424
= 0.45576
The probability that the dealer will sell 51 or more cars is 0.45576
You can divide the fractions
(2,-4) is a solution to the equation.
Answer:
Step-by-step explanation:
Let
x -----> the cost of the items Kira's store sold
Remember that
----> sales tax in decimal number
we know that
The cost of the items that Kira's store sold multiplied by the sales tax in decimal number must be equal to $22
so
Solve for x
Divide by 0.05 both sides
Answer:
75.4 units³
Step-by-step explanation:
SA = 2×pi×r×(r+h)
= 2×pi×2×(2+4)
= 24pi
= 75.3982236861
= 75.4 units²