Los Angeles workers have an average commute of 30 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 15 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N b. Find the probability that a randomly selected LA worker has a commute that is longer than 36 minutes.

Q: 4x; x = 8?

A: Find 4x if x= 8?

Q: What value of x will make the length of the box three times as big as the width?

A: see below the answer and explanation

Q: x^2=4x-9. Solution set is: { , }

A:

Q: Find a number for which of 13 less than the number is the same as 13 more than the number.

A: Find a number for which of 13 less than the number is the same as 13 more than the number.

Q: -4.5 x -2.5

A:

Q: 3x 9*-4x 27°

A:

Q: 51° 151°

A:

Q: 2-x2=10x

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.