A 20 foot tall tree casts a shadow of 30 feet. How tall is a tree that casts a shadow of 45 feet?
30 feet
100
Solve: 2x - 5 = 9
x = 7
100
Which of the following numbers is irrational?
a) 3.3
b) pi
c) 3
d) 1/2
B
100
Simplify: 5x - 2 + 8 + 3x
8x + 6
200
Evaluate f(x) = -3x - 8 for x = -2
-2
200
A right triangle has legs of length 3 in and 4 in. What is the length of the hypotenuse?
5 in
200
Solve: -3x + 9 = 27
x = -6
200
Between what two numbers is the square root of 50?
7 and 8
200
Simplify: 4 - 4x - 8 + x
-3x - 4
300
Evaluate f(x) = 3(2x - 4) + x for x = 7
37
300
A right triangle has legs of length 15 inches and 20 inches. What is the length of the hypotenuse?
25 feet
300
Solve the system: x = 4, y = 2x + 1
(4, 9)
300
Between what two number is the square root of 115?
10 and 11
300
What is the probability of rolling a 6 on a number cube?
1/6
400
Evaluate f(x) = 4(8x - 2x) for x = 3
72
400
A right triangle has a leg of length 10 feet and a hypotenuse of length 18 feet. What is the length of the other leg? Round to the nearest whole number.
15 feet
400
Solve the system: y = 9, y = 3x
(3, 9)
400
List two solutions for x^2 = 225
15, -15
400
A bag of candy has 4 colors (red, blue, yellow, green). The probability of choosing red is 3/10, the probability of choosing blue is 2/10 and the probability of choosing yellow is 1/10. What is the probability of choosing green?
4/10 or 2/5
500
Evaluate f(x) = -x + 4x - 2(x + 1) for x = -3
-5
500
A right triangle has a hypotenuse of length 30 feet and a leg of length 20 feet. What is the length of the other leg? Round to the nearest tenth.
22.3 feet
500
Solve: 8x + 2 = 3x + 12
x = 2
500
What is the solution of x^3 = -1?
-1
500
1 mile is equal to 5280 feet. How many square feet is one square mile?