Unit 1 Review
September
TEAMS-B DAY
THE REALS
•
•
•
•
Griffin
Kathya
Kylie
Tamara
THE ABSOLUTES
• Brandon
• Naquan
• Karijah
• Nicole
THE RATIONALS
• Darius
• Fredy
• Karina
THE NATURALS
• Morgan
• Destiny
• Kevin
• Nia
THE SIG FIGS
• Chloe
• Lauryn
• Harun
•How it works!
•
1 pt for getting the question right
•
Group can choose between 1, 2, or 3 pointer shot
•
Each team member must shoot before repeating
#1
Given P = {1, 2, 3,4,5, 6, 7, 8} and Q = {1, 3,7,9,11}
a)Find the union
b) Find the intersection
#2
True or False? JUSTIFY
a)
+
_
Z ∪Z = Z
b)
Q⊆Z
#3
True or False? JUSTIFY
a)
0∈ R
b)
R⊆Z
#4
You estimate a fence’s length to be 75 meters and
when you measure it, the true length is 62.3
meters. Find, correct to four significant figures, the
absolute percentage error.
#5
Mrs. Sawyer wishes to exchange 400 Mexican Pesos for
Euros at a buying rate of 2.684 and a selling rate of 2.3805.
a) How many Euros can she buy from the bank?
b) If she immediately sold the Euros back to the bank for
Pesos, how many will he have left?
c) What is the difference? (Be able to explain why!)
#6
You estimate 542 Jolly Ranchers to be in a jar.
When your teacher counts them, there are
actually 600. Find the absolute percentage
error to two decimal places.
#7
Put in scientific notation
708,900,000
#8
The area of Mrs. Sawyer’s room is 12.7 m by 10.3
meters. Round to 2 sig figs
a) Estimate the floor area by rounding each to
the nearest meter.
b) What is the actual area of the floor?
c) What is the error in your calculation?
d) What is the absolute percentage error?
#9
If 1 inch is equal to 2.54 cm, find the number
of centimeters equal to the height of the
Eiffel tower which is 1063 feet tall.
A)Round your answer to the nearest
centimeter.
B) Put in scientific notation
#10
Put in decimal form
-5
3.058 x 10
#11
Convert 4.5 tonnes (metric) into OUNCES
#12
How many significant figures?
0.005086
#13
Convert the time to SECONDS
34 hours 5 minutes 8 seconds
#14
Convert 78 degrees Fahrenheit to Celsius
#15
How many significant figures?
1800.3
#16
What is the decimal number?
6.7 x 100
#17
Convert 78,480 minutes into hours AND days
#18
A bank exchanges UK pounds for a commission of 1.8%.
A bank exchanges 1500 UK pounds to US dollars. The
exchange rate is 1 UK pound = 1.8734 US dollars.
•How much commission does the bank receive?
•How much does the customer receive for the
transaction?
HOMEWORK
• Look over the topics sheet and the TYPES of questions on
the exam
• Do each question WITHOUT looking at the answer…
• Check the answers!
• Use your notes/quizzes to figure out what you did wrong!
• Study!!!! STUDY!!! STUDY!!!!
• Answers to the Trashketball questions are attached on a
document below the PP link (these are very similar to test ?s)