Solve the formula for the specified variable.
207)
PV
T=pv
t for P
207)
A)
P =pv
tTV
B)
P =tvT
pV
C)
P =pvV
tT
D)
P =pvT
tV
Solve the equation.
208)
6
m + 5 = 1 –1
m – 5
208)
A)
{1, 5}
B)
{0, 7}
C)
{0, –5}
D)
Multiply or divide as indicated. Write the answer in lowest terms.
209)
25x2–1
x2–16
÷5x + 1
x – 4
209)
A)
5x – 1
x + 4
B)
x + 4
5x – 1
C)
(5x + 1)(25x2–1)
(x2– 4)(x – 4)
D)
5x + 1
x – 4
Solve the problem.
210)
The NCAA Division 4 women’s champion for the 400–m dash in 1998 was Sally Sprintalot of World
State University. Her winning time was 4.79 sec. What was her rate in meters per second?
210)
A)
85.51 m per sec
B)
1916.00 m per sec
C)
81.51 m per sec
D)
83.51 m per sec
Provide an appropriate response.
211)
True or false? If a fraction with denominator x + 5 must be written as an equivalent fraction with
denominator (x + 5 )2, then the original fraction must be multiplied by x + 5 in both the numerator
and the denominator.
211)
A)
True
B)
False
Divide. Write the answer in lowest terms.
212)
5p – 5
p÷8p – 8
6p2
212)
A)
40p2+ 80p + 40
6p3
B)
4
15p
C)
15p
4
D)
30p3– 30p2
8p2– 8p
Multiply or divide as indicated. Write the answer in lowest terms.
213)
z2+ 15z + 54
z2+ 18z + 81
÷z2+ 6z
z2+ 19z + 90
213)
A)
z + 10
z
B)
z + 10
C)
z + 10
z2+ 9z
D)
z
z2+ 18z + 81
Write the rational expression in lowest terms.
214)
c2+n2
c–n
214)
A)
–1
B)
c+n
C)
c–n
D)
Already in lowest terms
Find the LCD for the fractions in the list.
215)
9
10 , –5
12 , 6
30
215)
A)
60
B)
12
C)
30
D)
20
Divide. Write the answer in lowest terms.
216)
x2–9
x÷2x +6
x –3
216)
A)
(x –3)2
x
B)
2x
(x –3)2
C)
(x –3)2
2x
D)
2(x +3)2
x
Multiply or divide as indicated. Write the answer in lowest terms.
217)
z2+ 7z + 10
z2+ 14z + 45
÷z2+ 2z
z2+ 7z – 18
217)
A)
z – 2
B)
z – 2
z
C)
z – 2
z2+ 9z
D)
z
z2+ 14z + 45
Write the rational expression in lowest terms.
218)
12x +15
16x +20
218)
A)
3
4
B)
3
C)
1
D)
4
3
Solve the formula for the specified variable.
219)
1
a+1
b=1
c for c
219)
A)
c = ab(a + b)
B)
c = a + b
C)
c =ab
a + b
D)
c =a + b
ab
Solve the equation.
220)
5x
8– 9 = x
220)
A)
–24
B)
3
72
C)
8
5
D)
–1
2
Solve.
221)
P =A
1 + rt for r
221)
A)
r= P –tA
B)
r=A – P
Pt
C)
r=P – 1
At
D)
r=P – A
1 +t
Solve the equation.
222)
15
x=8–1
x
222)
A)
4
7
B)
{1}
C)
{2}
D)
15
8
Solve the problem.
223)
A man rode a bicycle for 12 mi and then hiked an additional 8 mi. The total time for the trip was 5
hr. If his biking rate was 10 mph faster than his hiking rate, what was each rate?
223)
A)
Biking: 11.5 mph; hiking: 1.5 mph
B)
Biking: 14. mph; hiking: 4.5 mph
C)
Biking: 12 mph; hiking: 2 mph
D)
Biking: 13 mph; hiking: 3 mph
Find the LCD for the fractions in the list.
224)
8
m2– 4m , 3
m2+ 2m – 24
224)
A)
m(m – 10)2
B)
m(m – 4)(m + 6)
C)
m(m – 10)(m + 6)
D)
(m – 10)2
Answer Key
Testname: C6
Answer Key
Testname: C6
Answer Key
Testname: C6
Answer Key
Testname: C6
Answer Key
Testname: C6