Approximate the area under the graph of f(x) over the specified interval by dividing the interval into the indicated number of subintervals and using the left endpoint of each subinterval.f(x) = -0.02x4 - 0.2x2 + 10; interval [-4, 4]; 4 subintervals
A. 30.28
B. 29.44
C. 60.56
D. 58.88
Answer: D
Mathematics
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Solve the problem that involves probabilities with dependent events. An ice chest contains 4 cans of apple juice, 6 cans of grape juice, 5 cans of orange juice, and 2 cans of pineapple juice. Suppose that you reach into the container and randomly select three cans in succession. Find the probability of selecting no grape juice.
A. 
B. 
C. 
D. 
Mathematics
Determine if the graph of the function is concave up or concave down.y = -(x + 5)2 - 3
A. Concave down B. Concave up
Mathematics
Solve the inequality, then graph the solution.7t + 5 ? 5t + 1
A. (-?, -2]
B. [2, ?)
C. (-?, 2]
D. [-2, ?)
Mathematics
Add.6596666
A. 285 B. 275 C. 329 D. 298
Mathematics