Make it Bigger!
Expand 3x(x - 4y)
3x2 - 12xy
Making r the subject
v = 4/3 (pi x r3)
r = cube root of 3V/4pi
Factorize 3m + 15mn2 - 9nm2
3m (1 + 5n2 - 3nm)
If the area of a triangle is represented by A = bh/2, rearrange the equation to solve for b.
2A/h = b
If m = 0.5, x= 3, and y= 2, find the value of -3x + my
-8
Expand and simplify 5a2 - a(1 + 2a)
3a2 - a
The volume of a sphere, V, is given by the formula V = 4/3 (pi x r3), where r is the radius of the sphere. What is the radius of a sphere with a volume of 200cm3?
3.63cm
What are possible dimensions of a rectangle that has an area of 6xy + 42x
6x by y+7
The volume of a sphere is V = (4 x pi x r3)/3, what is the formula for the radius of a sphere?
r = cube root of [3V/(4 x pi)]
What has a face and two hands, but no arms or legs?
A clock.
x2 + 4x -21
A = P(1 + r/100) (r) the subject
r = 100(A/P-1)
What is three-tenths of 3?
0.9
or 9/10
or nine-tenths
x = (w(y-z))/v
w = (xv)/(y-z)
If m = -2, y = 5, and x = 3, find the value of 35(mx -y)
-385
Expand and simplify (3 + x)(3 - x)
9 - x2
If T = 2p square root of l/g, what is g?
g = 4p2l / T2
Factorize x2 - 8x + 12
(x-2)(x-6)
Rearrange the formula to make x the subject
T = 2x3 - 4y
x = cubed root of (T + 4y)/2
What is the radius of a sphere that has a volume of 268.08 cm3? Round your answer to the nearest whole number. Remember, the formula for the volume of a sphere is
V = (4 x pi x r3)/3
4 cm
Name the first 5 digits of pi.
3.1415
If m = -4, x =2, y = -5 and r = 3, find the value of
-3x - y +r
2
Factorize x2 - 49
(x+7)(x-7)
If A = (B/C) + DE, rearrange the formula to solve for D first, then rearrange again to solve for C.
D = (A - (B/C))/E
C = B/(A - DE)
If A = (pi x b2) - (pi x c2), find A when b = 0.2 and c = 0.5. Round your answer to two decimal places.
-0.66