Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
![**Title: Understanding Exponent Rules**
**Objective:**
Fill in the blanks using the rules for exponents.
**Instructions:**
Apply the rules of exponents to complete each expression.
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(a) \( x = x^1 \) ✔️
- **Explanation:** Any number raised to the power of 1 is the number itself.
(b) \( x^s \cdot x^t = x^{st} \) [Incorrect] ❌
- **Correct Explanation:** The rule states that when you multiply powers with the same base, you add the exponents: \( x^s \cdot x^t = x^{s+t} \).
(c) \( (xy)^b = (xy)^b \) [Incorrect] ❌
- **Correct Explanation:** When raising a product to a power, distribute the exponent: \( (xy)^b = x^b \cdot y^b \).
(d) \( (a^t)^q = a^{tq} \) ✔️
- **Explanation:** When raising a power to another power, multiply the exponents.
(e) \( \frac{x^s}{x^t} = \frac{x^s}{x^t} \) [Incorrect] ❌
- **Correct Explanation:** When dividing powers with the same base, subtract the exponents: \( \frac{x^s}{x^t} = x^{s-t} \).
(f) \( \left(\frac{a}{b}\right)^w = \left(\frac{a}{b}\right)^w \) [Incorrect] ❌
- **Correct Explanation:** When raising a fraction to a power, apply the exponent to both the numerator and the denominator: \( \left(\frac{a}{b}\right)^w = \frac{a^w}{b^w} \).
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