roblem #5: Suppose that the distribution of the lifetime of a car battery produced by a certain car company is we approximated by a normal distribution with a mean of 1800 hours and variance 104. What is the approximat probability that a batch of 100 car batteries will contain at least 18 whose lifetimes are less than 1718 hours?

Q: A store sells neckties at $15 for 5 ties or $12 for 3 ties. Write equations and solve for the…

A: In order to minimize the cost of purchasing neckties, we need to determine the equations of both…

Q: lease show all the steps for solving the system. I need to see where I went wrong in my computation:…

A: From 2x+4=6 we get:

Q: Solve the system. Be sure to check all proposed solutions. x + y = 12 y = 5x O {(3,9)} O {(-2, 14)}…

A: The objective of this question is to find the solution to the system of equations x + y = 12 and y =…

Q: x-7y 53 -4x-5y 19

A: Given that two equation and we solve that equation by using substitution method. x - 7y = 53 ;  - 4x…

Q: A new condominium complex is putting in trees. One week management brings in two maple trees and…

A: First week management brings two maple trees and three cherry trees and it cost total of $260…

Q: For Exercise, solve the system using any method. y 2x = -+ 1 0.04x – 0.01y = 0.02

A:

Q: Graph the following system of equations. x - 4y= -1 4x-3y=6 Use the graphing tool to graph the…

A: To graph the given system of equations

Q: It takes Tristan 140 minutes to paint a room, working at a steady pace. It takes Maryia 80 minutes…

A: First, we need to determine how much of the room each person can paint in one minute. This is their…

Q: 7. y=-7x-1 ソ=x-9

A:

Q: Describe when you would choose to use each method for solving a system of equations: graphing,…

A:

Q: Complete the following for the system of equations. 2x - 4y = 0.6x - 1.2y = 2.1 7 (a) Use a graphing…

A:

Q: 8. y=-5x+30 7x+3y= 42

A: We have to solve

Q: Solve the system. - 2z – 4y = 4 - 3z – 6y

A: