Decide whether the following is an expression or an equation. Simplify any expression or solve any equation.7x - (3x - 1) = 2
A. Expression; 2x + 3
B. Expression; 3x + 2
C. Equation; 
D. Equation; 
Answer: D
Mathematics
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Consider these figures:
Which figure above, if any, is topologically equivalent to the given figure? Identify the topologically equivalent figure by letter.A stop sign
A. A B. B C. C D. None of these
Mathematics
Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, -1) for -5xy2 - 7x2y + 4x = 0.
A. 
B. 3
C. - 
D. - 
Mathematics
Solve the problem.Determine graphically or numerically where 
for 
A. 
, 
B. 2?, 3?, 4?, 5?,
C. 2?, 4?, 6?
D. 
, 
, 
, 
Mathematics
Use the formula A = P(1 + rt) to find the indicated quantity.A = $16,400; r = 10%; 90 days. Find P.
A. $16,810 B. $16,400 C. $16,000 D. $400.00
Mathematics