The number -2 is a solution to which of the following inequalities?
-3x < 1
x - 7 < -4
-12/x> 10
x + 7 > 5

The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.