Write 4*10-2 as a decimal.

Write 0.12*10-3 as a decimal.

Write 2 log3 x + log3 5 as a single logarithmic expression.

Factor the algebraic expression 6x2 - 21xy + 8xz - 28yz.

Factor the algebraic expression (x - 1)2 - (y - 2)2.

Factor the algebraic expression x2 - z4.

Evaluate the algebraic expression |-2x - y + 3| for x = 3 and y = 5

Simplify the algebraic expression -2(x - 3) + 4(-2x + 8)

Expand and simplify the algebraic expression (x + 3)(x - 3) - (-x - 9)

Which property is used to write a(x + y) = ax + ay

Simplify 8 x3 / 2 x-3

Simplify (-a2b3)2(c2)0

For what value of k is the point (-2, k) on the line with equation -3x + 3y = 4?

For what value of a will the system given below have no solutions?

2x + 6y = -2

-3x + ay = 4

Which equation best describes the relationship between x and y in this table?

x y

0 -4

4 -20

-4 12

8 -36

y = - x/4 - 4

y = - x/4 + 4

y = - 4x - 4

y = - 4x + 4

Which equation best represents the area of the rectangle below?

problem.

area = 2(x+1) + 2(x-1)

area = 4(x+1)(x-1)

area = 2x2

area = x2 - 1

Which line given by its equation below contains the points (1, -1) and (3, 5)?

-2y -6x = 0

2y = 6x - 8

y = 3x + 4

y = -3x + 4

Solve the equation 2|3x - 2| - 3 = 7.

Solve for x the equation (1/2)x2 + mx - 2 = 0.

For what values of k the equation -x2 + 2kx - 4 = 0 has one real solution?

For what values of b the equation x2 - 4x + 4b = 0 has two real solutions?

Function f is described by the equation f (x) = -x2 + 7. What is the set of values of f(x) corresponding to the set for the independent variable x given by {1, 5, 7, 12}?

Find the length and width of a rectangle whose perimeter is...

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