| 1.
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If x = –3, what is the value of  |
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-4 |
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-2 |
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2 |
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 |
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|
5 |
2)
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Doctors use the term maximum heart rate (MHR) when referring to
the quantity found
by starting with 220 beats per minute and subtracting 1 beat per
minute for each year
of a person’s age. Doctors recommend exercising 3 or 4 times
each week for at least
20 minutes with your heart rate increased from its resting heart
rate (RHR) to its
training heart rate (THR), where
THR = RHR + .65(MHR – RHR)
Which of the following is closest to the THR of a 43-year-old person whose RHR is
54 beats per minute?
|
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197 |
|
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169 |
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162 |
|
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134 |
|
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80 |
| 3) |
When getting into shape by exercising, the subject’s maximum recommended
number of heartbeats per minute (h) can be determined by
subtracting the subject’s age (a) from 220 and then taking
75% of that value. This relation is expressed by which of the following
formulas? |
|
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h = .75(220 – a) |
|
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h = .75(220) – a |
|
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h = 220 – .75a |
|
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.75h = 220 – a |
|
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220 = .75(h – a) |
4) |
An airplane flew for 8 hours at an airspeed of x miles per
hour (mph), and for 7 more hours at 325 mph. If the average airspeed
for the entire flight was 350 mph, which of the following equations
could be used to find x ? |
|
x + 325 = 2(350) |
|
x + 7(325) = 15(350) |
|
8x – 7(325) = 350 |
|
8x + 7(325) = 2(350) |
|
8x + 7(325) = 15(350) |
5) |
Which of the following is equivalent to 3a + 4b –
(–6a – 3b) ? |
|
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16ab |
|
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–3a + b |
|
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–3a + 7b |
|
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9a + b |
|
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9a + 7b |
6)
|
What is the sum of the polynomials 3a2b + 2a2b2
and –ab2 + a2b2 ? |
|
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3a2b – ab2 +
3a2b2 |
|
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3a2b – ab2 +
2a2b2 |
|
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2a2b + 3a2b2 |
|
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2a2b3 + 2a4b4 |
|
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–3a3b3 + 2a4b |
7) |
Which of the following is a factor of the polynomial x2 – x – 20 ? |
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x – 5 |
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x – 4 |
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x + 2 |
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x + 5 |
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x + 10 |
8) |
Which of the following is a factor of x2 –
5x – 6 ? |
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(x + 2) |
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(x – 6) |
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(x – 3) |
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(x – 2) |
|
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(x – 1) |
9) |
If 2(x – 5) = –11, then x = ? |
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 |
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– 8 |
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– 3 |
|
 |
10 ) |
 |
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2 |
|
1 |
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– 1 |
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– 2 |
|
– 10 |
11) |
For all nonzero r, t, and z values,  |
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 |
|
 |
|
 |
|
 |
|
 |
12) |
For all x > 0 and y > 0, the radical expression  is equivalent to: |
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 |
|
 |
|
 |
|
 |
|
 |
13) |
For all , 
which of the following is equivalent to the expression below?
|
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x + 3 |
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x + 8 |
|
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x + 11 |
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x + 16 |
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x + 28 |
14) |
Which of the following is a simplified expression equal to
for all x < –3 ? |
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3x |
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x + 3 |
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x – 3 |
|
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–x+ 3 |
|
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–x – 3 |
15) |
What is the slope of the line with the equation 2x + 3y
+ 6 = 0 ? |
|
– 6 |
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– 3 |
|
– 2 |
|
 |
|
 |
16) |
Point A (–4,1) is in the standard (x,y)
coordinate plane. What must be the coordinates
of point B so that the line x = 2 is the perpendicular
bisector of 
? |
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(–6, 1) |
|
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(–4,–1) |
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(–4, 3) |
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(–2, 1) |
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( 8, 1) |
