Solve the system of equations by the substitution method.
A. (24, -6)
B. (-6, 24)
C. infinite number of solutions
D. no solution
Answer: A
Mathematics
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Evaluate the improper integral.
A. 6 B. -6 C. 0 D. 3
Mathematics
Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(1) = 3, u '(1) = -7, v(1) = 7, v '(1) = -2.
at x = 1
A. - 
B. - 
C. - 
D. - 
Mathematics
Evaluate the double integral.
A. 42 B. - 378 C. - 126 D. - 294
Mathematics
Solve the problem.Three coins are tossed 80 times and the number of heads is observed.
Compute the empirical probability that at most two heads occur.
A. 
B. 1
C. 
D. 
Mathematics