Numbers
Algebra
Graph
Sets
100
Simplify this function:
(5*10^3)/(4.5*10^(-3)+5*10^(-4) )
10^7
100
2x^2-2x=x^2-x+20
Find the value of x
X = 4 or -5
100
Find the average speed over the course of 3 hours (average speed = total distance/time)
7/3 km per hour
100
True or false:
a\cup c={0}
False (it will be an empty set)
200
KFC has two platters (套餐):
Platter A: 4 chicken wings for 5 dollars
Platter B: 6 chicken thighs for 4 dollars
How many platter A and B Mr. Zou need, so he will end up with the same amount of chicken thighs and wings
3 Platter A and 2 Platter B
200
Line A is perpendicular to line B, and passes through (0,1).
If the equation for line B is y=-3x-2, what will the equation for line A be?
Line A: y=3x+1
200
True or false:
n(B\capA)=n(B\capC)
True
300
Mr. Zou has to make drinks, and drinks has three types of juices: pineapple, apple, and orange. The ratios between the juice are as such:
Orange : Apple = 3:4
Pineapple: Orange = 1:2
If Mr. Zou used 18 litters of pineapple juice, how much apple juice did he use?
24 liters of apple juice
300
Rewrite the equation,
x=(3p-n)/(3n-4)
, so the subject will be n
n=(3p+4x)/(3x+1)
300
Write out the three inequalities surrounding the un-shaded area
y\geq-3/2x-3| y>3/4x-3 |y\leq0
300
Write an equivalent set to set B
(Your set must include 2,3,5,6,12,18)