Solve. Use ? ? 3.14 when necessary.A 16-foot ladder is leaning against a house with the base of the ladder 5 feet from the house. How high up the house does the ladder reach? Round to the nearest tenth foot.
A. 15.2 feet
B. 11 feet
C. 14.9 feet
D. 16.8 feet
Answer: A
Mathematics
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Solve the problem.The concentration c (in mg/L) of a certain drug in the bloodstream is found to be 
where t is time (in h) after the drug is taken. Find dc/dt.
A. 
B. 
C. 
D. 
Mathematics
Write the complex number in rectangular form.
cis 270°
A. -i
B. -i
C. -
D. -2i
Mathematics
Provide an appropriate response.In a raffle 1000 tickets are being sold at $1.00 each. The first prize is $100, and there are 3 second prizes fo $50 each. By how much does the price of a ticket exceed its expected value?
A. $1.00 B. $0.75 C. $1.75 D. $50
Mathematics
Factor out the polynomial GCF.j(k - 4) - 2(k - 4)
A. (j - 2)(k + 4) B. (j - 2)(k - 4) C. (j + 2)(k - 4) D. -2j (k - 4)
Mathematics