Solve the problem. Round to the nearest tenth, if necessary.The diagram below shows the side view of a plan for a slanted roof. Find the unknown length in this roof plan.
A. 222.5 ft
B. 21.1 ft
C. 10.55 ft
D. 14.5 ft
Answer: B
Mathematics
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The number N, in millions, of Americans with Internet access t years after 1990 is modeled by the function
.
?
According to the model, how many Americans had Internet access in 1990? Round your answer to two decimal places, if necessary.
?
A. 194 million B. 97.00 million C. 100 million D. 1.92 million
Mathematics
Evaluate using substitution.
? 3x sin (5x)dx
Mathematics
Write the improper fraction as a mixed or whole number.
A. 25
B. 3
C. 25
D. 
Mathematics
Solve the equation by the method of your choice. Simplify solutions, if possible.7 - 7x = (4x + 9)(x - 1)
A. 
B. {-4, 1}
C. {-1, 4}
D. 
Mathematics