Let (m × n) denote a matrix of size m × n. Find the size of the following product, or state that the product is not defined.(3 × 4)(4 × 3)
A. 3 × 3
B. 4 × 4
C. not defined
D. 3 × 4
Answer: A
Mathematics
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Graph the polar equation.r = 5 sin 4?
A. 
B. 
C. 
D. 
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Write an equivalent fraction with the given denominator. 
= 
A. 
B. 171
C. 1710
D. 9
Mathematics
Solve the system by substitution. -4x + 8y = 56 x + 7y = 49
A. No solution B. (0, 7) C. (1, 6) D. (-7, 0)
Mathematics
Solve the problem.During 1991, 200,000 people visited Rave Amusement Park. During 1997, the number had grown to 834,000. If the number of visitors to the park obeys the law of uninhibited growth, find the exponential growth function that models this data.
A. f(t) = 200,000e0.238t B. f(t) = 634,000e0.238t C. f(t) = 200,000e0.248t D. f(t) = 634,000e0.248t
Mathematics