Which expressions below are equivent to 2 (2x+1)

What is the confidence level (written as a percentage) for the interval x overbar minus 2.14 sigma divided by startroot n endroot less-than-or-equal-to mu less-than-or-equal-to x overbar plus 2.14 sigma divided by startroot n endroot?

Determine between which consecutive integers the real zeros of f (x) = 2x^2-5x+1 are located a. between 0&1 and 1&2 c. between 0&1 and 2&3 b. between - 1&0 and 2&3 d. between 1&2 and 2&3

Show the work for The ratio of boys to girls in class 6f is 3:2. If there are 30 students in the class, how many of them are boys and how many are girls

What is a good word problem for the equation: 2 (x-1) + 4 (x+2) = 72

If one third of the class boys what is the ratio of girls to boys

If least has 120 boxes of crayons. Each crayon cost $6. How many more money does she need?

If the mass of the empty container is 250 grams and the final mass of the container with liquid is 1,300 grams, calculate the mass of the liquid by itself.

A group of students is taking a CPR course. The total cost for the course is $275. The room in which the course will be held can hold a maximum of 25 people, including the instructor.

When we substitute different numbers for *,

A homeowner has 200 feet of fence to enclose an area for a pet. (a) if the area is given by A (x) = X (100-x), what dimension maximize the area inside the fence? (b) what is the maximum area?