Algebra
If x+y=7 and xy=10, find x2+y2.
What is the degree of 4x4+2x3+x?
What is 4?
A triangle has angles of 45 degrees and 65 degrees. Find the third angle.
What is 70 degrees?
What is the median of 14,9,7,12,3?
What is 9?
What is 27?
What is 128?
Factor x2−9x+20.
What is (x−4)(x−5)?
What is the slope of the line through (2,3) and (6,11)?
What is the sum of the interior angles of a 12-sided polygon?
What is 1800 degrees? S=(n−2)180∘.
What is the probability of rolling a number greater than 4 on a fair six-sided die?
Find the least common multiple of 12 and 18.
What is 36?
Solve x2−5x−14=0.
What is 7 and -2?
Solve 2x=256.
What is 8?
A regular polygon has each exterior angle equal to 24∘24∘. How many sides does it have?
What is 15?
A number is chosen uniformly from 1 through 100. What is the probability it is divisible by both 3 and 5?
What is 3/50? Multiples of 15
What is the smallest positive integer divisible by 6, 8, and 15?
What is 120?
If f(x)=2x2−3x+1, what is f(−2)?
What is 15?
Find the vertex of y=x2+6x+5.
What is (-3,-4)? x=−b/2a
What is the diagonal of a square with side length 6?
What is 6√ 2?
Two fair dice are rolled. What is the probability their sum is 7?
What is 1/6?
What is the units digit of 72026?
What is 9?
If x2=2, what is x4+3x2 ?
What is 10?
Find f(18) if f(x)=11x+5.
What is 203?
What is the volume of a cylinder with radius 3 and height 5?
What is 45π cubic units? V=πr2h.
A class of 100 students has 60% girls. If 25% of the girls and 50% of the boys wear glasses, what percentage of the class wears glasses?
What is 35 percent?
Find 1+2+3+⋯+50.
What is 1,275?