34 + 54 = 88
56 + 22 = 78
12 + 32 = 44
56 + 33 = 89
45 + 13 = 58
88
78
44
89
58
(40.6/94.9) + 0.301 =
(0.859 + 0.423) x (–0.521) – 0.882 =
0.729
-1.55
Expand (-2x + 5)(5x - 1)
-10x^2 + 27x - 5
rewrite the equation in point slope form: y - 4 = 2 (x - 3)
y = 2 x - 2
2 * 44 =
3 * 51 =
5 * 32 =
88
153
160
If Barbara worked every day in April and earned $4,250, how much did she earn each day on average?
$141.67
Solve 3x^2 = 48
x = 4 and x = -4
what is the are, circumference and diameter of a circle that has a radius of 12?
diam: 24 area: 24pi circ:144pi
34 * 11 =
45 * 11 =
374
495
(–49.1 – 34.5 + 94.2 + 5.41)/(44.4) =
{(31.8 – 18.1 + 37.2)(–7.18)(9.71)} – 1370 =
0.361
-4920
(x + 3)^2 = 7
x = -3 + sqrt(7) and x = -3 - sqrt(7)
on a map, it is 2.5 inches between Alex's town and his grandfathers town. The scale on the map is 1 in: 12 miles. What is the actual distance between the towns.
30 miles
20 * 22 =
30 * 31 =
40 * 18 =
440
930
720
What is the quotient of pi and 13.7, if the quotient is a number greater than one?
If a bowling ball is 8 ¼ inches in diameter, how many complete revolutions will it make in rolling 100 yards?
4.36
138
2x/3 + x/6 = 5
x = 6
tan^-1(1)
pi/4, 5pi/4
67 * 43 =
2881
An ounce of a certain metal cost $4.77 in 2017. If the average inflation rate was 2.1%, what did an ounce of this metal cost in 1951?
The 86th floor of the Empire State Building is 1050 ft. above the street. If a marble is dropped from this height, disregarding air friction, what will the speed of the marble be upon impact?
1.21
177
Factor: 42 - 8x - 2x^2
-2(x + 7)(x - 3)
f(x) = 3x^3 + 3x^2 + 12x
find f'(x) and f''(x)
f'(x) = 9x^2 + 6x + 12
f''(x) = 18x + 6