Answer:
1.19 minutes
Step-by-step explanation:
First, subtract the $3 monthly fee:
16.09 - 3
= 13.09
Then, divide this by 11:
13.09/11
= 1.19
So, he was billed for 1.19 minutes
Answer:
1.3
Step-by-step explanation:
i really duno thow
Answer:
Approximately 7.16 in
Step-by-step explanation:
Hi there!
Area of a circle equation: where r is the radius
Plug in the given area 161 in.²
Divide both sides by π to isolate r²
Take the square root of both sides to isolate r
Therefore, the radius of the circle is approximately 7.16 in.
I hope this helps!
Answer:
b) 158
Step-by-step explanation:
The two horizontal lines are called parallel lines so x is the same as the given angle and the ones diagonal from them would be the same as well.
Answer:
0.9985
Step-by-step explanation:
The population standard deviation is:
s² = 64
s = 8
The sample standard deviation is:
σ = s/√n
σ = 8/√39
σ = 1.28
The z-score is:
z = (x − μ) / σ
z = (128.2 − 132) / 1.28
z = -2.97
The probability is:
P(Z > -2.97) = 1 − P(Z < -2.97)
P(Z > -2.97) = 1 − 0.0015
P(Z > -2.97) = 0.9985