Financial Maths
Money earned at an hourly rate is called...
Wage
What trigonometry function do you use if you know the adjacent and the opposite sides?
tan
What is a variable? Give an example.
A letter that represents an unknown value. An example is x.
x/4 = 10
x=40
How many meters are 3.4kms?
3400m
If $240 is invested at a rate of 5%p.a. for 9 years, how much simple interest is earned?
$108
Theta= sin-1(?/hyp)
Opposite
Combine the like terms:
2y + 10w + 6t – 8m – 15k
2y + 10w + 6t – 8m – 15k
2x - 1 = 9
x=5
What is the formula for the area of a circle?
A=pi x r2
How much money is earned for a 48 hour work week where 8 hours is at time-and-a-half and the usual wage is $20/h?
$1040
Which way do you rotate when measuring true bearings?
Clockwise
Simplify:
4a2b6c/8a2bc3
b5/2c2
4(2x - 1) = 12
x=2
What is the first three digit square number?
100
What is the compound interest formula?
A = P(1+r/n)nt
If the hypotenuse of a triangle is 16m and the adjacent if 4m, what is the unknown angle?
75.520
Expand:
2a(3b - 4a)
6ab - 8a2
3x + 6 = 7x - 5
x=11/4
The number pi and the angle theta are represented using letters of which alphabet?
The greek alphabet
Which account should I invest my money in to earn the most interest? An account earning 4.3% p.a. for 4 months, or and account earning 5.2% p.a. for 3 months? Both are compounded monthly.
4.3% p.a. for 4 months.
If a triangle has an angle of 400 and an opposite side of 15.4m, how long is the hypotenuse of the angle?
23.96m
Expand and simplify:
(x+2)(x-5)
x2 - 3x - 10
5(4x + 5) = 4(2x + 4)
-9/12
What is the name of the branch of Mathematics that involves shapes?
Geometry