Are You Ready for Math 65?
Your Skills with positive and negative numbers, order of operations and the distributive property, unit conversion, along with solving linear equations and graphing lines need to be adequate to be successful in this class. Calculator skills are important in this course so you should be able to do the following problems both with and without a calculator.
1) Solve the
following equations:
3)
Simplify the following:
5) After a 35% price reduction, a VCR sold for
$185.25. What was the price
before the reduction?
6) A swimming pool has a width of 25 meters and an
area of 1,250 square meters.
What is the length of the pool?
7) The mathematical model h = -16t^{2} + 64t
models the height of a baseball when it
is thrown into the air with a velocity of 64 feet per second. h
= the height in feet
at t, the time in seconds. Make a table for
the height at time = 1 sec, 2 sec and
2.5
sec:
t |
h = -16t^{2} + 64t |
1 |
? |
2 |
? |
2.5 |
? |
8) Plot the points (-2,4) and (3,0) on a x-y coordinate system .
Answers:
3a)
-6 3b) -3
4) 10.26 cm
5) $285
6) 50 meters
7) 48 ft, 64 ft, 60 ft
8)