Suppose you measured the diameter of a tree trunk to be 5 cm. the actual diameter can vary by at most 0.4 cm, due to the error in measuring a non-flat surface. write an absolute value inequality for the range of acceptable diameters and solve the inequality.
a. |d − 5| ≤ 0.4; 4.6 ≤ d ≤ 5.4
b. |d + 5| ≤ 0.4; −5.4 ≤ d ≤ −4.6
c. |d + 0.4| ≤ 5; −5.4 ≤ d ≤ 4.6
d. |d − 0.4| ≤ 5; −4.6 ≤ d ≤ 5.4

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

What are the solutions of the equation? z^2 + 11z + 24 = 0 a. 8, -3 b. 8, 3 c. -8, -3 d. -8, 3

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank