Answer:
16%
Step-by-step explanation:
Find the z-score.
z = (x − μ) / σ
z = (93 − 85) / 8
z = 1
This means 93 is one standard deviation above the mean.
According to the empirical rule, 68% of a normal distribution is between -1 and +1 standard deviations. So 32% is either less than -1 or greater than +1 standard deviations. Normal curves are symmetrical, so 16% is greater than +1 standard deviations.
The first term is a(1) = -3
The recursive step is a(n) = a(n-1)+7 meaning "add 7 to each previous term to get the next term". This points us to the common difference d being 7
a1 = -3
d = 7
an = a1 + d(n-1)
an = -3 + 7(n-1)
an = -3+7n-7
an = 7n-10
Answer:
(it says an = 7n-10 if the image doesn't show up)
Note: the n starts at n = 1
Answer:
D
Step-by-step explanation:
20% of 2000
20/100 × 2000
=400
BRAINLIEST?
Answer:
Yes they are correct
Step-by-step explanation: