Find the specific function value.Find f(5, 0, 8) when f(x, y, z) = 5x2 + 5y2 - z2.
A. 65
B. -39
C. 61
D. 189
Answer: C
Mathematics
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Determine whether the sequence is arithmetic. If the sequence is arithmetic, determine the first term a and common difference d.4, 12, 36, 108, 972, . . .
A. Arithmetic; a = 4, d = 8 B. Not arithmetic
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The rectangular coordinates of a point are given. Find polar coordinates for the point.(-3, 3)
A. 
B. 
C. 
D. 
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Multiply.7x2(4x2 - 5x - 6)
A. 28x4 - 35x2 - 42 B. 28x4 - 35x - 42 C. 11x4 + 2x + 1 D. 28x4 - 35x3 - 42x2
Mathematics
Solve the problem.Leah has $243 in her checking account. She writes a check for $43, makes a deposit for $92, and then writes another check for $114. Find the amount left in her account. (Write the amount as an integer.)
A. -178 dollars B. 6 dollars C. 178 dollars D. -6 dollars
Mathematics