Piecewise and Combining Functions

Anyone know this. What is the negation of the following statement? A triangle cannot contain two obtuse angles. A. A triangle can contain two obtuse angles. B. A triangle does not contain two obtuse angles.

What is the axis of symmetry of the function f (x) = - (x + 9) (x - 21)

Is 81 divisible by 3?

F (-7) if f (x) = 8x 15

Find a pair of numbers whose sum is 45 and whose difference is 11.

Angle 1 is obtuse angle 2 and 3 are acute angle 1 plus angle 3 = ?

Twelve of the 28 students in a class have a dog. What is the ratio of students who have a dog to the students who do not?

Whats an example of a repeated decimals

How do I find the rate of something?

South Middle School has 750 students. North Middle School has 13/15 times as many students as South. Does North Middle School have more or fewer than 7500 students?