8x+800-3=837
8x=837-797
8x=40
x=40/8
x=5
We have the mean, μ = 20 and the standard deviation, σ = 4
X ≈ N(20, 4²)
We want P(X<15)
Standardising gives
P(X<15) = P(Z<
)
P(X<15) = P(Z< -1.25) ⇒ When the value of the z-score is negative, we will read the value of z<1.25 on the z-table then subtract the answer from 1
P(X<15) = 1 - P(Z<1.25)
P(X<15) = 1 - 0.8944
P(X<15) = 0.1056
Hence, the probability that pizza takes less than 15 minutes to be delivered is 0.1056 = 10.56%
Answer:
16 pages per hour
Step-by-step explanation:
48 ÷ 2 = 16 pages per hour
The answer is D which is greater than 11 and less than 23.
<span>Sum of 2 sides of triangle is always greater than the third side.
And absolute difference of 2 sides of a triangle is always less than the 3rd side.
From that, 3rd side ia less than 6+17 = 23
and greater than 17-6=11.</span>
Answer:
2
Step-by-step explanation:
Since the 3's are the same on either side, you need to find a number that, when multiplied by 9, yields 18. The only number that satisfies that is 2, which is the answer. Hope this helps!