If a triangle has sides of all different lengths, is it a equilateral, isosceles or scalene?
What is the inverse (opposite) operation to addition?
Subtraction
What is another name for the xy-plane?
The Cartesian Plane.
It's named after French Mathematician Rene Descartes.
What is the area of the rectangle?
A=lxxb
A=2xx4
A=8
What is the probability of even chance as a percentage?
50%
Is an angle of 150: an acute angle, an obtuse angle, a reflex angle or a revolution?
An Obtuse Angle
Define inverse operation.
The opposite operation, for example multiplication and division are inverse operatons.
What are the coordinates of point B?
The coordinates are (1, 2).
What is the perimeter of the shown shape?
3+3+6+6=18 km
If something is impossible, what would its probability be?
0
The hypotenuse is the shortest side of a right-angled triangle. True or false?
False. The hypotenuse is the longest side of a right-angled triangle, directly across from the right angle.
2xxx=4
(2x)/2=4/2
x=2
Is this linear relationship positive, negative, zero or undefined?
Negative.
If a length is measured in m, what would the unit of area be?
m^2
What is the probability of getting a 3 on a fair six sided die?
1/6
What is the hypotenuse of the triangle shown?
It is 5 because the hypotenuse is the always the longest side across from the right angle.
Solve the following equation:
(x+4)/2=5
(x+4)/2xx2=5xx2
x+4=10
x+4-4=10-4
x=6
What is the x and y intercept of the following?
The x-intercept is 2 and the y-intercept is also 2.
What is the formula for the area of a triangle?
A=1/2bh
Mean
What is the acronym we use to remember the trig ratios?
SOHCAHTOA
Solve the equation:
2x+1=11
The answer is 5.
2xxx+1-1=11-1
2x=10
(2x)/2=10/2
x=5
Which of the following is not a linear relationship?
a) 2x+1=y
b) 12=x+y
c) y=3x^2
c because the highest power of a linear relationship must be 1.
Find the volume of the shape:
Volume = Area x Height
Which one of the following currently defines the mode?
a) The sum of all the data values divided by the total number of values.
b) The middle data value.
c) The most repeated data value.
c) The most repeated data value.
What type of ratios need to be used to find unknown angles?
For example:
Sinx=2/3
The inverse ratios.
sin^(-1)
Solve the equation:
(x+2)(x-3)=0
Using null factor law:
x=-2 and 3
Given that the formula for gradient is m=rise/run. What is the gradient of the line?
m=(rise)/(run)=2/2=1
The gradient is 1.
Which of the following formulae is the correct formula for the area of sector?
a) A=pir^2
b) A=theta/(360)xxpir^2
c) A=1/2xy
b) A=theta/(360)xxpir^2
What is the mode of the following data values:
1, 2, 4, 4, 4, 5, 5, 6