8PA CRM 1.3 Equivalent Expressions L1

​

​Pre-Algebra
CRM 1.3 Equivalent Numeric Expressions
Lesson 1:
Negative Exponent Law
8.NSO.1.3

Your Turn...Are You Ready ?

Multiple Select

Select all that are Equivlent

$$-5^{-3}$$

• $$\frac{1}{15}$$

• $$\frac{1}{-125}$$

• -125

• $$\frac{1}{-5^3}$$

Multiple Select

Select all that are eqivalent to $$\frac{1}{5^{-2}}$$

• $$5^2$$

• $$\frac{1}{25}$$

• 25

• $$\frac{5^2}{1}$$

Multiple Select

Which shows $$\frac{x^{-3\ }}{y^{-5}}$$ in expanded form?

• $$\frac{y^{5\ }}{x^3}$$

• $$\frac{\left(y\cdot y\cdot y\cdot y\cdot y\ \right)}{\left(x\cdot x\cdot x\right)}$$

• $$xy^{-2}$$

• $$\frac{\left(-x\cdot-x\cdot-x\right)}{\left(-y\cdot-y\cdot-y\cdot-y\cdot-y\right)}$$