Solve the problem.Imagine a large tank with cross-sectional area A. The bottom of the tank has a circular drain with cross-sectional area a. Assume the tank is initially filled with water to a height h(0) = H. The height of the water as it flows out of the tank is described by the equation 
where 
and 
is the acceleration due to
gravity. Find the water height function for 
Then determine the approximate time at which the tank is first empty. If necessary, round to two decimal places.
A. h(t) = (1.2 - 0.2t
)2; 1.36
B. h(t) = (1.2 - 0.1t
)2; 2.71
C. h(t) = (1.2 - 0.1t
)2; 3.83
D. h(t) = (1.2 - 0.2t
)2; 1.92
Answer: B
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Solve the problem.The appliance store where the Scott family shops offers a 6% discount for paying cash. The Scott family received a discount of $45. What was their total bill before the discount?
A. $8 B. $3 C. $750 D. $300
Write the number in decimal notation.
?
?
A. 31.276 B. 3.127 C. 67.213 D. 3.1276 E. 312.76
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Use the Binomial Theorem to expand and simplify the expression.
?
?
A. 
B. 
C. 
D. 
E. 