Arithmetic
198 / 9
22
x^-2 + 3 = 28 (solve for x)
x = 1/5
Height of a triangle with area 5 and base 3?
5/6
square root of negative 1 (i), cubed?
negative square root of negative 1 (-i)
1/2 + 1/4 + 1/8 + 1/16 + ... (infinitely)?
1
987 + 789
1776
x^(4/3) = 256 (solve for x)
x = 64
75pi
(x + 1) / (9 - x) = 2/3
solve for x
x = 3
1/2 + 1/3 + 1/4 + 1/5 + ... (infinitely)?
infinity
7.8 * 0.11
0.858
x^2 - x - 6 = 0 (solve for x, 2 answers)
x = 3 or x = -2
Hypotenuse of a right triangle with leg lengths 3 and 4?
5
-2x / (x + 2) = (x + 3) / (x + 2)
solve for x
x = -1
Area under the curve y = 2x + 5 from 0 to 2?
14
40 million / 60 billion (decimal answer)
0.000666
f(x) = 2x - 3
g(x) = -x^2
g(f(5)) = ?
-49
Surface area of a cube with volume 27?
54
(i is the square root of negative 1)
i + 7
Derivative of y = x^2?
y' = 2x
13/14 - 5/6
2/21
2x + 3y = 11
3x + 2y = 9
solve for x & y
x = 1
y = 3
If cube A has half the volume of cube B, what is the ratio of side lengths A:B?
1:(cube root 2)
List all zeroes of (x+1)(x+2)/(x+3)(2x+4)?
-1
limit as x goes to 2 of (x - 3) / (x - 2)?
negative infinity