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Worksheets30th Mar - Maths B
Total questions: 12
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
Find the y-coordinate of the midpoint of the line
a)
1
b)
2
c)
-2
d)
3
2.
Point M with coordinates (3,4) is the midpoint of the line AB and A has the point (-1,6). What is the point of B?
a)
(1,5)
b)
(2,10)
c)
(7,2)
d)
(1,2)
3.
a)
A
b)
B
c)
C
d)
D
4.
a)
30
b)
60
c)
42
d)
52
5.
What is the probability of spinning an even number?
a)
16 2/3%
b)
33 1/3%
c)
50%
d)
75%
6.
A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?
a)
3/10
b)
3/9
c)
1/9
d)
1/3
7.
What is the probability of rolling 15 with a pair of dice?
a)
impossible
b)
unlikely
c)
equally likely
d)
likely
8.
Shelby’s test scores are 88, 92, 88, 55, 94, 90, and 89. If the outlier were omitted, what would be the effect on Shelby’s mean score?
a)
The mean would not change.
b)
The mean would become smaller than the median.
c)
The mean would increase by 2.
d)
The mean would increase by 5.
9.
The number of bacteria in a science experiment doubles in size every 30 minutes. At 1:30 p.m., there were 2 bacteria in the sample. How many bacteria were in the sample at 4:30 p.m.?
a)
14 bacteria
b)
64 bacteria
c)
128 bacteria
d)
256 bacteria
10.
The expression 6x2 – 4x + 5 can be used to calculate a company’s revenue from selling x items. The expression 2x2 – 10 can be used to calculate the company’s cost to make x items. Which expression represents the company’s profit from selling x items?
(Note: Profit = Revenue – Cost)
(Note: Profit = Revenue – Cost)
a)
8x² – 4x – 5
b)
4x² – 4x + 15
c)
4x² – 4x – 5
d)
4x² + 15
11.
Which is an equation of the line that passes through the point (-3, 4) and is perpendicular to the graph of y = ⅔x - 6?
a)
y = ⅔x + 10
b)
y = ⅔x + 6
c)
y = ⁻³/₂x - ½
d)
y = ⁻³/₂x + ½
12.
The endpoints of a line segment are located at (1, 9) and (7, 1). What is the midpoint of the line segment?
a)
(3, 4)
b)
(4, 3)
c)
(4, 5)
d)
(5, 4)
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