What is the value of the expression shown below?
7 + (2 + 6) 2 ÷ 4 ⋅ 1 over 2 to the power of 4
a. 23
b. 18
c. 9
d. 8

Which matrix multiplication is possible?

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.