factor form of x2-10x+25
(x-5)2
A right triangle with side lengths of 14cm, find the area
98cm2
result of 4x2-3x when x is equal to 2
10
Using a six-sided die, Carlin has rolled a six on each of 4 successive tosses. What is the probability of Carlin rolling a six on the next toss?
1/6
How many solid 1*1*1 cubes are required to make a solid 2*2*2 cube?
8
if f(x)=3/2 x - 8, what is f(x) when x=-8
f(x)=-20
Find the perimeter of a square that has an area of 25
20
if a+b=15, a(x-3)+b(x-3)=60, find the value of x
7
There are 6 blue marbles, 3 red marbles, and 5 yellow marbles in a bag. What is the probability of selecting a blue or red marble on the first draw?
9/14
What is the reciprocal of ?
6/7
x-2y=5;
x+2y=11;
solve x
x=8
a triangle with 31cm2 is inside a square with side of 7cm. Find the area that is not under the triangle.
18cm2
√(2x+7-x)=2, find the value of x
-3
In a photograph, Aristotle, David, Flora, Munirah, and Pedro are seated in a random order in a row of chairs. If David is seated in the middle of the row, what is the probability that Pedro is seated beside him?
1/2
If 2a = 3b, and 4a + b = 21, what is b
b=3
the fraction (x-2)/x2+4x-21 is not defined when x=
x=-7 or 3
the area of a rectangle is 32∏, a semi circle has the same area, find the radius
4
if 2r=64 and 5s=25, find r+s
8
Three fair coins are tossed at the same time. What is the probability that all three coins will come up heads OR all will come up tails?
1/4. 1/8 (all heads) + 1/8 (all tails) = 1/4.
If cos 60° = cos 45° cos θwith , solve θ
θ = 45°
f(x) = 4/3 x + c, if f(9)=15, find f(c)
f(c)=7
the height of a cone is 9 cm, and its radius is 2cm, find the volume of the cone
∏*22*9/3=12∏
solve 42x−3 = 161−x
5/4
Five students, all of different heights, are randomly arranged in a line. What is the probability that the tallest student will be first in line and the shortest student will be last in line?
1/20. 1x3x2x1x1=6, 6 ways in which students can be arranged under given conditions. Under no conditions, the ways are 5x4x3x2x1=120. 6/120=1/20.
A large water jug is 1/4 full of water. After 24 litres of water are added, the jug is 5/8 full. What is the volume of the jug, in litres?
64 L