Determine whether f is continuous at c.f(x) = 4x4 - 8x3 + x - 7;c = 0
A. continuous
B. not continuous
Answer: A
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Solve the problem.The bacteria in a 9-liter container double every 2 minutes. After 57 minutes the container is full. How long did it take to fill a quarter of the container?
A. 53 min B. 28.5 min C. 14.3 min D. 42.8 min
Solve the problem.A person has $325 in her online movie account. Find the maximum number of movie downloads costing $4 each that this person can purchase. How much is left in the account?
A. 81; $3 B. 81; $1 C. 81; $0 D. 82; $0
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. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Factor. If the polynomial is prime, so state.x2 - x - 42
A. (x + 1)(x - 42) B. (x + 7)(x - 6) C. prime D. (x + 6)(x - 7)