2024年4月1日发(作者：斯永康)

1Find the indicated operation

a.

b

3

b

. 10

5 a

2

b

2

b. (x

2

-6x+9) . 10

b

2

+b

c (2x

2

-3x-5)



2x5

x-1

d (6y

2

-y-2)



2y+1

3y-2

Find the LCD for the given rational expressions and convert each expression into an

equivalent rational expression LCD as the denominator.

1

x y

9y

5

z

,

12x

3,

6x

2

y

5 3b 1

12a

6

b

,

14a

3,

2ab

3

x 5x

x

2

-9

,

x

2

-6x+9

5x - 4

x

2

-1

,

x

2

-2x+1

-5 x 3

6x-12

,

x

2

-4 2x+4

Perform the indicated operation reduce each answer to lowest terms

3 2

-

2a-2 1-a

3 + 4

x

2

+x-2 x

2

-2x+3

5 - 3 + 4

3a-9 2a a

2

-3a

After leaving moose jaw, Hanson drove 200 kilometers at X km/hr and then decreased

this speed by 20 km/hr and drove 240 additional kilometers write a rational expression

for this total traveling time evaluate the expression for x=100( make a table )

Solve each equation. Watch for extraneous solutions

4 + 3 = x - 1

x x-3 x-3 3

1+3y = 6

y- 2 y-1

Solve equation

2m = 3m

3 2

Solve each proportion

-5 = 3

9 x

a = a+3

a+1 a

9 = 3

x 2

m-1 = m-3

m-2 m+4

a. if 220 out of 500 votes surveyed said that they would vote for the incumbent ,then how

many votes could the incumbent expect out of the 400,000 voters in the state.

b. If alonze travels 230 miles in 3hours then how many miles does he travel in 7 hours ?

c. To estimate the size of the bear population on the kewwwnaw peninsula.

Conservationists captured tagged and released 50 bears. One year later, a random sample

of 100 bears include only 2 tagged bears. What is the conservationist estimate of the size

of the bear population?

Solve each formula for the indicated variable

F= mv^2 for r

r

1 = 1 + 1 for R

R R

1

R

2

V= 4



r

2

h for h

3

h=s-2



r for s

2



r

use the product rule for radicals to simplify each expression

9y

16n

t

4

7

18

solve each equation and check for extraneous solutions

2x

2

1x

2x

2

3x10x

x

2

5x6

x

2

3xx

2024年4月1日发(作者：斯永康)

1Find the indicated operation

a.

b

3

b

. 10

5 a

2

b

2

b. (x

2

-6x+9) . 10

b

2

+b

c (2x

2

-3x-5)



2x5

x-1

d (6y

2

-y-2)



2y+1

3y-2

Find the LCD for the given rational expressions and convert each expression into an

equivalent rational expression LCD as the denominator.

1

x y

9y

5

z

,

12x

3,

6x

2

y

5 3b 1

12a

6

b

,

14a

3,

2ab

3

x 5x

x

2

-9

,

x

2

-6x+9

5x - 4

x

2

-1

,

x

2

-2x+1

-5 x 3

6x-12

,

x

2

-4 2x+4

Perform the indicated operation reduce each answer to lowest terms

3 2

-

2a-2 1-a

3 + 4

x

2

+x-2 x

2

-2x+3

5 - 3 + 4

3a-9 2a a

2

-3a

After leaving moose jaw, Hanson drove 200 kilometers at X km/hr and then decreased

this speed by 20 km/hr and drove 240 additional kilometers write a rational expression

for this total traveling time evaluate the expression for x=100( make a table )

Solve each equation. Watch for extraneous solutions

4 + 3 = x - 1

x x-3 x-3 3

1+3y = 6

y- 2 y-1

Solve equation

2m = 3m

3 2

Solve each proportion

-5 = 3

9 x

a = a+3

a+1 a

9 = 3

x 2

m-1 = m-3

m-2 m+4

a. if 220 out of 500 votes surveyed said that they would vote for the incumbent ,then how

many votes could the incumbent expect out of the 400,000 voters in the state.

b. If alonze travels 230 miles in 3hours then how many miles does he travel in 7 hours ?

c. To estimate the size of the bear population on the kewwwnaw peninsula.

Conservationists captured tagged and released 50 bears. One year later, a random sample

of 100 bears include only 2 tagged bears. What is the conservationist estimate of the size

of the bear population?

Solve each formula for the indicated variable

F= mv^2 for r

r

1 = 1 + 1 for R

R R

1

R

2

V= 4



r

2

h for h

3

h=s-2



r for s

2



r

use the product rule for radicals to simplify each expression

9y

16n

t

4

7

18

solve each equation and check for extraneous solutions

2x

2

1x

2x

2

3x10x

x

2

5x6

x

2

3xx