Help with solving rational equations

Oct 28th, 2015
RockCafe
Category:
Mathematics
Price: $10 USD

Question description

Solve the equation for ​z

square root of 4 z space plus space 1 end root equals space 3


a. 9

b. 2

c. 3

d. 4



Solve the equation for x.

square root of x minus 3 end root equals 2


a. 1

b. 5

c. 7

d. no solution



Which of the following shows the correct next step when solving the equation below.

square root of t plus 21 end root minus 1 space equals space square root of t plus 2 end root
left parenthesis square root of t plus 21 end root minus 1 right parenthesis squared equals left parenthesis square root of t plus 2 end root right parenthesis squared


a. t space equals space 21 space plus space 1 space equals space t space equals space 2

b. t plus 21 space minus space 2 square root of t plus 21 end root plus 1 space equals space t space plus space 2

c. t space plus space 21 space minus space 2 square root of t space plus space 21 end root plus space 1 space equals space t squared plus space 4 t space plus space 4

d. t space plus space 21 space minus space 2 square root of t space plus space 21 end root minus space 1 equals space t plus space 2



Solve the equation for b,

square root of b space plus space 1 end root equals space square root of b space plus 6 end root minus space 1


a. 3

b. -2

c. -3

d. No solution



Solve the equation for ​r

cube root of r space minus space 2 end root minus space 3 space equals space 0


a. r = -25

b. r = 125

c. r = 11

d. r = 29



Solve the equation for ​n​

cube root of 3 n end root plus space 4 space equals space 7


a. n = 1

b. n = 9

c. n = 3

d. n = bevelled 1 third



Solve the equation for ​y

square root of y space plus space 3 end root minus space square root of y minus 3 end root equals space 1


a. y = 3

b. y = bevelled 13 over 4

c. y = bevelled 37 over 4

d. No Solution



Find the length of the unknown side in the right triangle. Round the answer to two decimal places.


a. 5.74 cm.

b. 8.06 cm.

c. 11 cm.

d. 3.32 cm.



Find the length of the unknown side in the right triangle. Leave your answer in simplest radical form.


a. square root of 15 space end root i n.

b. 15 space i n.

c. square root of 113 i n.

d. square root of 225 i n.



Find the length of the unknown side in the right triangle. Leave your answer in simplest radical form.


a. 8 square root of 46 m.

b. 2 square root of 131 m.

c. 7 square root of 14 m.

d. square root of 3106 m.




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