In factored form, it is (x + 4)(x - 4) + (2x + 2)(x -2)
What is 3x^2 - 2x - 20?
100
The area of a circle with a diameter of 8
What is 16pi?
(or 50.27)
100
The length of BC, if a right triangle has a hypotenuse (AC) of 15, and the cosine of angle BAC is .6
What is 12?
200
The x in
4x + 18 = 38
What is 5?
200
The average score per game, if the 8th grade girls' basketball team played a total of 13 games and scored a total of 364 points.
What is 28?
200
Possible values of s, if
s^2 - 4s - 6 = 6
What are -2 and 6?
200
The area of a rectangle with side length 8 and perimeter 24
What is 32?
200
The tangent of angle EFD in a right triangle DEF, if the hypotenuse (DF) is 1, and the legs are DE = 12 and EF = 5
What is 12/5?
300
The x in
x^3 = 512
What is 64?
300
The x in
6x + 4 = 11x - 21
What is 5?
300
The number of girls in a high school senior class if the ratio of girls to boys is 5:3 and the total number of students is 168
What is 105?
300
The length of a fence around a yard that is 130 feet by 70 feet
What is 400 feet?
300
The sin of angle QRS, in an isosceles triangle QRS, where the legs (QR and QS) are 5 and the hypotenuse is unknown
What is (sqrt (2) ) / 2?
400
Ellen's weight, if John weights 165 lbs. and John weighs 1.5 times as much as Ellen.
What is 110 lbs.?
400
The sale price of a $160 jacket on sale for 15% off.
What is $136?
400
The solution for the inequality |x - 3| + 6 < 15
What is -6 < x < 12?
400
The length of a 4-foot tall boy's shadow, if he stands in front of a 24-foot tree that casts an 18-ft shadow (and the two shadows end at the same point)
What is 3 feet?
400
The tangent of A, if sin A = 1/2
What is (sqrt (3)) / 3?
500
The whole number closest to the solution of sqrt(90) x sqrt (32).
What is 39?
500
The probability that a randomly selected marble will be green, if a jar contains 8 red marbles, 14 blue marbles, 11 yellow marbles, and 6 green marbles.
What is 2/13?
500
The value of x in the system of equations below
3y + 4x = 10
2y - 4x = 0
What is 1?
500
The length of RS in a right triangle RST, if the measure of angle R is 30 degrees and the hypotenuse (RT) is 16
What is 8 sqrt(3)?
500
The length of a ramp, if it is at a 20-degree elevation and a 3-foot height.