Topic 5
Solve the equation: 0.5p - 3.45 = -1.2
p=4.5
Find the mode of the data set:
3,56,7,5,43,5,5,5,3,3,6,7
5
Marcus is rolling a number cube with sides labeled 1 to 6. The probability that the number cube will show 10 is _____.
0
What quadrilaterals can you draw that have exactly four right angles?
square, rectangle
What is the P(heads) when flipping a coin?
50%
Write an equation: At the mall, Claire buys a hat that is 60% off and socks that are reduced to $5.49. She spends a total of $9.49. Let x represent the cost of the hat.
0.4x + 5.49=9.49
What is the mean?
3,7,45,67,5,3,24,57
26.375
A spinner has two yellow, two green, two purple, and two blue sections. What is the P(yellow)?
2/8 or 25%
<A and <B are supplementary angles, and <A is three times as large as <B. What are the measures of <A and <B?
<A = 45 degrees
<B = 135 degrees
What shape would result when you slice a square-based pyramid vertically?
Triangle
-1/2 (b - 6) = 5
b = -4
What is the median?
3,8,6,3,5,6
5.5
What kind of probability is flipping a coin 30 times and recording each flip?
Experimental Probability
What is the formula to find the volume of a prism?
Area of the base x height
4x - 8 = 12
x = 5
m/-5 > 2
m < -10
What is an inference?
A conclusion made from interpreting data.
There are 4 red, 11 blue, and 15 green marbles drawn from a bag. If there are 30 marbles in the bag, what is the probability of drawing another blue marble?
11/30 or 37%
Find the area of a circle with diameter of 7 feet.
38.465 ft2
-14y - 12 + 6y = 10
y= -2.75
18 < -3 ( 4x - 2)
x < -1
Miguel thinks that science teachers give more homework than the math teachers. He is researching the number of hours middle school students spend doing math and science homework each night. The population would be ___________, and a possible sample would be ____________.
P = all middle school students
S = some students from each grade in middle school
10
Find the circumference of a circle with radius of 6 cm.
37.68 cm
Find the area of a circle with a circumference of 31.4 feet.
78.5 ft2