Find each product.
The product is .
Multiplying rational numbers: - Let a, b, c, and d be numbers with and . Then .
To find the product of the expression, first multiply the numerator and denominator.
Further simplify the expression.
Therefore, the product is .
When air is pumped into a ball, the pressure required can be computed by using the formula , where P represents the pressure in pound per square inch (psi), and r is the radius of the ball in inches.
a. Simplify the complex fraction.
b. Suppose the air pressure inside the ball is 8 psi. Approximate the radius of the ball to the nearest hundredth.
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