College Physics: Math Pretest (Part II)

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College Physics: Math Pretest (Part II)

General Questions

What is the length of the unknown side of the right triangle illustrated in terms of p and q?

1.

-

-

How many radians in 315˚ ?

2.

5p/6
11p/6
9p/7
7p/4
7p/8

(9.1 ´ 10^-3) - (-4.6 ´ 10^-4) = ________.

3.

9.6 ´ 10^-3
4.5 ´ 10¹
4.6 ´ 10⁴
1.4 ´ 10^-6
8.6 ´ 10^-4

= _______

4.

-1
-(x² + 2xy + y²)/(x² - y²)
4xy/(x² - y²)
-(x² - 2xy + y²)/(x² + y²)
-(x - y)²

Joe and Ron are painters. A certain job will require 21 hours if Joe works alone, but only 7 hours if Joe and Ron work together. How long will it take Ron, working alone, to complete the job?

5.

4.5 hours
8 hours
10.5 hours
14 hours
15.5 hours

cos 330˚ = ________.

6.

+ cos 60˚
- cos 60˚
+ cos 30˚
- cos 30˚
none of the above

(6.6 ´ 10^-27) ´ (-1.8 ´ 10¹⁵) = ________.

7.

-1.2 ´ 10^-11
4.8 ´ 10^-12
1.2 ´ 10^-13
-1.2 ´ 10^-43
-1.8 ´ 10^-15

Solve for x in the equation below, treating m, j, and d as constants: -mx² - jx + d = 0

8.

(m ±

) / 2j
(j ±

) / -2m
(-m ±

) / 2d
(-j ±

) / 2m
(-d ±

) / -2m

sin q = ________.

9.

a/c
c/a
b/c
a/b
b/a

What are the values of x in the expression below?

3x² + 5ax - 2a² = 0

10.

2a; 3a
2a; -a/2
2a; -a/3
a/3; -2a
3a; a/2

Solve for y in the following equations:

2y - 5 = z
y - 3z = -5

11.

1
2
3
4
5

= ________.

12.

x + y
(xy³ + xz²) / z²y²
(xy + z²x²) z²y
(x²y + zx) / (z²x + zy² )
(y² + z²) / z²y

3.14 ´ 10¹ + 1.28 ´ 10² = ________.

13.

4.42 ´ 10³
4.42 ´ 10²
1.59 ´ 10²
1.59 ´ 10³
3.26 ´ 10¹

tan q = ________.

14.

y/z
x/y
z/y
x/z
y/x

= ________.

15.

(

)

21
15

-

= ________.

16.

3x/y
(x² + 3xy - y²)/xy
-(x - y)²/xy
2x² + y² - 3xy
2 - y + x

tan 190˚ = ________.

17.

tan 10˚
- tan 10˚tan 80˚
tan 80˚tan 10˚
- tan 80˚
none of the above

What is the (approximate) slope of the curve at x = 8?

18.

-0.4
+1
+2
-0.6
-1.6

What is the value of r when x = 0 on the line that goes through the points (x = 12, r = 5) and (x = -6, r = -4).

19.

-1
2
4
6
12

H T Hudson
T L O'Kuma

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