EVALUATE FOR THE GIVEN VALUE OF THE VARIABLE WORKSHEET

Evaluate the following expressions when

x = 8, y = 9 and z = 10

Problem 1 :

2∛-x - √y

Solution

Problem 2 :

z² + (xy/y) - 5

Solution

Problem 3 :

-5|x - z| + 1/2 z

Solution

Problem 4 :

What is -4 - 2x + 7 when x = -5?

a. -7          b. 1         c. 13          d. 21

Solution

Problem 5 :

What is 4∛a - c√b + 6 when a = 27, b = 64 and c = -2?

a. 2            b. 22            c. 26           d. 34

Solution

Problem 6 :

What is

|-5x + 6y| + √z / 5^x - 22

when x = 2, y = -13 and z = 81

Solution

Evaluate the algebraic expression for the given values.

1)  7x + 8 when x = 2            Solution

2)  5x − 4 when x = 6              Solution

3)  x² when x = 12      Solution

4)  4^x when x = 2          Solution

5)  x² + 3x - 7 when x = 4            Solution

6)  (x - y)² when x = 10 and y = 7           Solution

7)  a² + b² when a = 3 and b = 8          Solution

8)  r² - s² when r = 12 and s = 5      Solution

9)  2L + 2W when L = 15 and W = 12      Solution

10)  2x + 4y - 5 when x = 7 and y = 8      Solution