Answer:
a) 0.1587
b) 0.023
c) 0.341
d) 0.818
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 515
Standard Deviation, σ = 100
We are given that the distribution of SAT score is a bell shaped distribution that is a normal distribution.
Formula:
a) P(score greater than 615)
P(x > 615)
Calculation the value from standard normal z table, we have,

b) b) P(score greater than 715)
Calculating the value from the standard normal table we have,

c) P(score between 415 and 515)

d) P(score between 315 and 615)

Answer:
a 90° clockwise rotation about the origin and then a reflection a cross the x-axis
Answer:
It will take him 50 minutes to complete the painting.
Step-by-step explanation:
The area of a square given its diagonal (d) is computed as follows:

In this case, the diagonal is 10 units long, then the area is: