Solve.The perimeter of an equilateral triangle is 42.0 inches. Find the length of each side of the triangle.
A. 10.500 in.
B. 126.0 in.
C. 14.0 in.
D. 168 in.
Answer: C
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Translate the argument into symbolic form. Then use a truth table to determine whether the argument is valid or invalid. (Ignore differences in past, present, and future tense.)If Emilio and Rodrigo both cook, then the meal is tasty.
? Rodrigo did not cook.
What will be an ideal response?
Find the standard deviation s for the given data. Round your answer to one more decimal place than the original data.Christine is currently taking college astronomy. The instructor often gives quizzes. On the past seven quizzes, Christine got the following scores:43?15?33?23?17?45?57Compute the standard deviation(s).
A. 7,755.6 B. 9,255 C. 15.8 D. 33
Solve. Write the answer in simplest form.Find the perimeter of the scalene triangle, a triangle with all three sides a different length. Recall that the perimeter of a figure is the distance around a figure.
A. 
cm
B. 
cm
C. 
cm
D. 
cm
Solve the problem. Round your answer to the nearest tenth, when appropriate.The position of an object moving in a straight line is given by s(t) = t2 - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long will it take the object to move 
?
A. 9.7 sec B. 12.8 sec C. 17.0 sec D. 9.5 sec