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21 terms

Pre-Algebra Party

STUDY
PLAY
11-1
Find two integers that make each equation true. m^2=100/25
10/5, -10/5
11-2
Use the Pythagorean Theorem. a=5 cm., b=12 cm., c=?
c= 13 cm
11-5
What is the formula for the hypotenuse of a 45-45-90 triangle?
hypotenuse= x(√2)
11-6
What does Soh Cah Toa stand for?
Sine Opposite Hypotenuse, Cosine Adjacent Hypotenuse, Tangent Opposite Adjacent
12-2
Draw a box and whisker plot for these set of numbers: 36,43,24,52,18,30,34,36,20. What is the median?
median: 34
12-1
Describe a set of data that would be easier to display with a frequency table than with a histogram.
Answer may vary. Example: data in which one or more numbers occur with a high frequency.
12-6
Use the Counting Principle to find the number of permutations possible. S,I,T
6
12-8
A worker takes 100 eggs at random from a shipment of 120,000 eggs. The worker finds that four eggs are bad. Estimate the total number of bad eggs.
4,800 eggs
12-9
You toss five coins. What is the theoretical probability that you will get five heads?
answers will vary.
13-1
Find the next three terms of each sequence. 0,5,10,15....
20,25,30
13-7
What is the mnemonic for multiplying binomials. Solve (x+2)(x-1).
FOIL. x^2-1x+2x-2.
4-1
Is 53 divisible by 9, explain.
No, 53 can not be divided by 9, there will be a remainder of 8.
4-3
State whether each number is prime or composite.
19, 27, 38
prime, composite, composite.
4-4
Write 3/9 in simplest form.
1/3
4-5
Bob and two friends are playing with 3 different colored balls, each person gets each ball 3 times, how many passes were there?
9 passes
4-6
Write three fractions equivalent to 3/5.
answers may vary. Examples: 6/10, 9/15, 15/25
5-2
Write 3/5 as a decimal.
.6
5-3
Find the sum or difference, 3/16+7/16, 3/10-7/10. Simplify if possible.
5/8,-4/10
5-4
Find the product and quotient. Simplify if possible.
2/3(1/5), (1/2)/(1/3)
2/15,3/2 or 1 1/2
5-7
Solve the equation.
b+4/5=9/10
b=1/10
5-9
Simplify the expression.
(3(2))^2
36