Measurement
If the side length of a square is doubled by what factor is the area of the square increased ?
X 4
What is the equation of a line with a gradient of 4 and a intercept of -3.
y=4x-3
What is the probability of rolling a 4 when you roll one die?
1/6
What is the median of
5, 6, 4, 9
5.5
What is the surface area of a cube with side length 6cm
216cm^2
A line that is parallel to y=4x-6 and passes through (0,-1)
y = 4x -1
If you throw 2 dices what is the probability that the sum of the dice is 7?
6/36 or. 1/6
If 64 people’s age is surveyed and the median is 41, how many people are older than 41?
32
What is the area of a semicircle with radius 4cm?
24.13cm^2
A line that is perpendicular to y = 4x +7 and passes through the origin.
y= —1/4 x
If the P(A) = 0.5 and P (B) = 0.5
What is the probability of A and B?
A and B are independent events
0.5 x 0.5 = 0.25
A prediction based on the line of best fit is most reliable when the prediction is ?
A)interpolated and the correlation is positive
B) interpolated and the correlation is strong
C) extrapolated and the correlation is moderate
B) interpolated and the correlation is strong
What is the perimeter of a semicircle with Radius 4 cm
20.57cm
Solve
6x^2 = 54
+/-3
If 100 people are asked if they like movies and sport.
60 said they like movies, 70 said they like sport
10 said they like neither, how many like both?
40
Draw a box and whisker plot that has a strong positive skew.
Mrs C will check your drawing
Solve simultaneously
y= x + 7
2x + y = -2
y = 4