Solve the formula for the specified variable.d = rt for t
A. t = d - r
B. t = 
C. t = 
D. t = dr
Answer: C
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Find an equation for the line tangent to the given curve at the indicated point.y = 8
- x + 3 at (64, 3)
A. y = - 
x + 35
B. y = 
x - 35
C. y = 3
D. y = - 
x + 3
Determine whether the function is invertible. If it is, find the inverse.{(-20, -12), (-5, -12), (-17, 9)}
A. {(-20, 15), (-20, -5), (9, -17)} B. {(-12, -20), (-17, -5), (9, 15)} C. {(-12, -20), (15, -5), (9, -17)} D. Not invertible
Solve the problem.A combination lock has 45 numbers on it. How many different 3-digit lock combinations are possible if no digit can be repeated?
A. 28,380 B. 1980 C. 85,140 D. 14,190
Combine like terms and write the resulting polynomial in descending order of powers.8a9 - 2a9 + 4a5 + 15a9 - 11a5
A. 14a9 B. 21a9 - 7a5 C. 14a14 D. Cannot be simplified