Chapter 1: Problem 8
Evaluate the expression when \(x=3\) $$ x^{2} $$
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CHECKING SOLUTIONS OF INEQUALTTIES Check whether the given number is a solution of the inequality. $$n(21-n)<100 ; 8$$
Match the problem with the formula needed to solve the problem. Then use the Guess, Check, and Revise strategy or another problem-solving strategy to solve the problem. Area of a rectangle \(\quad A=l w \quad\) Distance \(\quad d=r t\) Simple interest \(\quad I=P r t \quad\) Volume of a cube Temperature \(\quad C=\frac{5}{9}(F-32)\) Surface area of a cube \(S=6 s^{2}\) How long must \(\$ 1000\) be invested at an annual interest rate of \(3 \%\) to earn \(\$ 300\) in simple interest?
Evaluate the expression. $$\frac{1}{2} \cdot 26-3^{2}$$
Use the following information. The surface area of a cylinder equals the lateral surface area \((2 \pi r \cdot h)\) plus the area of the two bases \(\left(2 \cdot \pi r^{2}\right)\). Evaluate the expression when \(h=10.5\) centimeters and \(r=2.5\) centimeters. Use 3.14 as an approximation for \(\pi .\)
Hotel RATES A hotel charges \( 49.99 \) per room per night for adults and \( 44.10\) per room per night for senior citizens. The expression \(2 \)x\( 49.99+ \)3 x 44.1 represents the total cost of five rooms for two adults and three senior citizens for an overnight stay. Where in the expression can you put grouping symbols to make sure it is evaluated correctly?
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