Solve. If necessary, round to the nearest tenth.If a flagpole 15 feet tall casts a shadow that is 20 feet long, find the length of the shadow cast by an antenna which is 27 feet tall.
A. 36 ft
B. 20.3 ft
C. 32 ft
D. 11.1 ft
Answer: A
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Answer the question.Darcy chose one of the numbers 1, 2, 3, ... , 32 and challenged Derick to determine the number by asking questions to which Darcy would answer 'yes' or 'no'. What is the minimum number of questions that Derick must ask to be certain of guessing the correct number?
A. 4 questions B. 16 questions C. 5 questions D. 32 questions
Determine the direction in which the parabola opens, and the vertex.y = x2 - 6x + 5
A. Opens upward; (-3, -4) B. Opens upward; (3, -4) C. Opens to the right; (-4, -3) D. Opens to the right; (-4, 3)
Solve the problem.A car rental company has two rental rates. Rate 1 is $42 per day plus $.12 per mile. Rate 2 is $84 per day plus $.06 per mile. If you plan to rent for one week, how many miles would you need to drive to pay less by taking Rate 2?
A. more than 5000 miles B. more than 9800 miles C. more than 17,150 miles D. more than 4900 miles
Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. open infinite interval; {x|x > -1}; (-1, ?) B. open infinite interval; {x|x < -1}; (-?, -1) C. closed infinite interval; {x|x ? -1}; (-?, -1] D. closed infinite interval; {x|x ? -1}; [-1, ?)