Answer:
x + y = 400
5x + 9y = 2632
Step-by-step explanation:
Answer:
a) 68.2%
b) 31.8%
c) 2.3%
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 530
Standard Deviation, σ = 119
We are given that the distribution of math scores is a bell shaped distribution that is a normal distribution.
Formula:

a) P(test scores is between 411 and 649)

b) P(scores is less than 411 or greater than 649)

c) P(score greater than 768)
P(x > 768)


Calculation the value from standard normal z table, we have,

Answer:
ans : general term = (2n +8)/(4^n) * (-1)^n
He would have $6,760 in his account after year one.
Do 6,500*0.04=260
6,500+260=6,760
Y is the independent variables
k is the dependent variable