Intermediate Algebra (11th edition)

16.Candy worth $1.00 per lb is to be mixed with 10 lb
of candy worth $1.96 per lb to get a mixture that
will be sold for $1.60 per lb. How many pounds of
the $1.00 candy should be used?

Perform the indicated operations.

20.Divide by.

Factor.

Perform the indicated operations.

Simplify.

32.Solve. 33.Multiply.

Solve each equation or inequality.

37.Graph. 38.Graph.

39.Solve. 40.Graph.

41.Rewrite the following using the product, quotient, and power properties of logarithms.

42.Let the number of bacteria present in a certain culture be given by

where tis time measured in hours, and corresponds to noon. Approximate, to the

nearest hundred, the number of bacteria present at each time.

(a)noon (b) 1 P.M. (c) 2 P.M.

(d)When will the population double?

t= 0

B 1 t 2 =25,000e0.2t,

log

x^32 y

z

5 x+^3 = a ƒ 1 x 2 =log 3 x

1

25

b

3 x+ 2

ƒ 1 x 2 = ƒ 1 x 2 = 2 x

1

3

1 x- 122 + 2

3 x^2 - x- 1 = 0 x^2 + 2 x- 870 x^4 - 5 x^2 + 4 = 0

22 x+ 1 - 2 x= 1 15 + 4 i 215 - 4 i 2

2288 2232 - 5298

2

k+ 3

-

5

k- 2

x^2 - 9

x^2 + 7 x+ 12

,

x- 3

x+ 5

15 p^3241 - 3 p^72

2 p^214 p^42

16 a^2 - 25 b^48 c^3 +d^316 r^2 + 56 rq+ 49 q^2

8 x+x^324 y^2 - 7 y- 6 5 z^3 - 19 z^2 - 4 z

6 t^4 + 17 t^3 - 4 t^2 + 9 t+ 4 3 t+ 1

13 m^3 + 2 m^2 - 5 m 2 - 18 m^3 + 2 m- 42

12 p+ 3213 p- 12 14 k- 322

CHAPTERS 1–10 Cumulative Review Exercises 633

Number Price

of Pounds per Pound Value

x $1.00 1 x

$1.60