Solve the following problem and show your complete solutions. Explain your answer for better understanding. The length of time, L hours, that a phone will work before it needs charging is normally distributed with a mean of 100 hours and a standard deviation of 15 hours. Find the probability that a randomly selected phone will work greater than 127 hours before it needs charging.

Q: Determine the positive x solution for the following equation. 20+ x² = 45

A: The expression is given as 20 + x2 = 45 Separate the variable, we get x2 = 25

Q: dy dy 2- + 9y = 0 is in the form y(x) = ea* (c cos Bx + c2 sin Bx). Find the values of a and The…

A:

Q: Solve each of the following equations. Be sure to check your answers. =x-1 b. 2. a. = x

A: Here we will solve the given equations,

Q: attached TWO images for the question and the answer.  Please show all work clearly written. Thank…

A:

Q: Solve EXACTLY like the example attached.  Follow ALL steps. Start with the gcf, then do the…

A:

Q: Please I need help with this question: look at the equation select all the solutions to the…

A:

Q: find the inequality shown by the following graph and then enter your inequality using the dropdown…

A: Disclaimer: Since you have asked multiple question, we will solve the first question for you. If you…

Q: Solve the problem. 4) A consultant traveled 340 miles to attend a meeting, traveling 50 mph hours…

A: Total distance=340 miles speed at first part=50mph speed at second part=60 mph time taken=6hours

Q: Problems 7-13: A) Explain B) Illustrate and C) Solve 8. Convince me that 7 100 8 > mit 3 4

A:

Q: Solve the following equations, showing all work and clearly communicating your process by stating…

A: The given equation,     3x2+4x=127

Q: You know the perimeter of a square to be 6 meters. Find the length of one side. Step 2 of 3: Without…

A: The perimeter of a square of side s is given by the formula P=4s.

Q: A skier travels for 4 seconds and A snowboarder travels 105 meters in 7 seconds. covers 72 meters.…

A: A snowboarder travels 105 meters in 7 seconds.

Q: If you add 5 to a certain number, the sum is less than 2 times the number. For what numbers is this…

A: NOTE: Refresh your page if you can't see any equations. . the given statement is  If you add 5 to a…

Q: Solve for y . 2 = - 12 Simplify your answer as much as possible.

A: topic - linear equation in one variable