Algebra
x2+7=32
5
What is the area of a rectangle with length 1 m and width 70 cm?
7000 cm2 or 0.7 m2
Find the mean of the following data set:
4, 6, 8, 10, 12
8
3x+4=2x+10
6
A triangle has a base of 12 cm and a height of 9 cm. What is its area?
54cm2
Find the mode:
3, 5, 7, 9, 11
No Mode
5x2+10=30
(Need all possible answers)
2 or -2
A circle has a circumference of 16pi cm. What is its radius?
8cm
The mean of 5 numbers is 18. Four of the numbers are 12, 20, 19, and 17. What is the fifth number? Also, find the range
Fifth Number - 22
Range - 10
4|x-2|-1+8=20
(Need all possible answers)
x=0 or x=2
A sphere has a radius of 3 cm. What is its surface area?
(Can use Calculator)
36pi cm2 or 113.097 cm2
Consider the following data set:
3, 7, 11, 13
Find the variance and standard deviation.
(Can use Calculator)
Roughly 3.84
6x^2-13x+6=0
(Need all possible answers)
x=2/3 and x=3/2
A square-based pyramid has a base side length of 6 cm and a slant height of 5 cm. What is its total surface area?
(Can use Calculator)
96 cm2
A dataset is normally distributed with a mean of 50 and a standard deviation of 10. What is the z-score for a value of 40?