MM: Ch. 2 Test

Front

95% of what number is 19?

Back

To find the number, set up the equation: 0.95x = 19. Solving for x gives x = 20.

Front

Simplify: 8 x 10^10

Back

This expression is already in its simplest form.

Front

Simplify: 16 x 10^25

Back

This expression is already in its simplest form.

Front

Simplify: 16 x 10^10

Back

This expression is already in its simplest form.

Front

Simplify: 1.6 x 10^11

Back

This expression is already in its simplest form.

Front

Solve: 11/13 = n/39

Back

Cross-multiply to find n: n = (11/13) * 39 = 33.

Front

Simplify (2^4)(2^5)

Back

Use the property of exponents: a^m * a^n = a^(m+n). Thus, (2^4)(2^5) = 2^(4+5) = 2^9.

Front

Simplify the expression: 3x^2⋅x^2

Back

Use the property of exponents: x^m * x^n = x^(m+n). Thus, 3x^2⋅x^2 = 3x^(2+2) = 3x^4.

Front

What is the formula for finding a percentage of a number?

Back

Percentage = (Part/Whole) * 100.

Front

What is the property of exponents for multiplying like bases?

Back

a^m * a^n = a^(m+n).