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Chapter 0: Problem 61
Evaluate each algebraic expression for x = 2 and y = -5. $$|x+y|$$
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Insert either < or > in the shaded area between the numbers to make the statement true. $$\sqrt{2} \quad 1.5$$
Can a real number be both rational and irrational? Explain your answer.
Determine whether each statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. $$x-0.02(x+200)=0.98 x-4$$
What difference is there in simplifying \(\sqrt[3]{(-5)^{3}}\) and \(\sqrt[4]{(-5)^{4} ?}\)
Use Einstein's special-relativity equation $$R_{a}=R_{f} \sqrt{1-\left(\frac{v}{c}\right)^{2}}$$ described in the Blitzer Bonus on page 47,to solve this exercise. You are moving at \(90 \%\) of the speed of light. Substitute 0.9c for v, your velocity, in the equation. What is your aging rate, correct to two decimal places, relative to a friend on Earth? If you are gone for 44 weeks, approximately how many weeks have passed for your friend?
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