Slope is -1/5
Y-intercept is 21
Equation is y=-1/5x+21
Yes it’s proportional :)
Answer: the difference between the max is 3,200.
Step-by-step explanation:
20,000-16,800= 3,200
Answer:
-10
Step-by-step explanation:
-10
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:
times 0.4
Step-by-step explanation:
The recursive formula allows a term in the sequence by multiplying the previous term by the common ratio r
Here
r = = = 0.4
Thus the recursive formula is
c(n) = c(n - 1) × 0.4 → with c(1) = 500 ← the first term in the sequence