Write the negation of the conditional statement.If there is a flood, then all doctors are on call.
A. There is not a flood and some doctors are not on call.
B. If there is a flood, then some doctors are not on call.
C. There is a flood and some doctors are not on call.
D. There is a flood and no doctors are on call.
Answer: C
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Find the indicated probability.The following contingency table shows the popular votes cast in the 1984 presidential election by region and political party. Round your answer to three decimal places.Political Party
A person who voted Democratic in the 1984 presidential election is selected at random. Find the probability that the person was from the West.
A. 0.196 B. 0.345 C. 0.187 D. 0.076
Your company manufactures two models of stereo speakers, the Ultra Mini and the Big Stack. Demand for each depends partly on the price of the other. If one is expensive then more people will buy the other. If p1 is the price per pair of the Ultra Mini and p2 is the price of the Big Stack, demand for the Ultra Mini is given by
?
?
where q1 represents the number of pairs of Ultra Minis that will be sold in a year. The demand for the Big Stack is given by
?
?
Find the prices for the Ultra Mini and the Big Stack that will maximize your total revenue.
?
Round your answer to the nearest dollar.
?
A. $798 for Ultra Mini and $275 for Big Stack
B. $428 for Ultra Mini and $783 for Big Stack
C. $275 for Ultra Mini and $798 for Big Stack
D. $328 for Ultra Mini and $783 for Big Stack
E. $783 for Ultra Mini and $328 for Big Stack
Use the given information to find the exact value of the trigonometric function.cos ? = - 
, sin ? > 0
Find cos 
.
A. 
B. 
C. - 
D. - 