Solve the equation for the indicated variable.A = P(1 + nr); solve for r

A. r = 
B. r = 
C. r = 
D. r = 

Answer: B

Mathematics

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Rewrite the equation such that each resulting term or combination is in an integrable form.x dy + x2y dy = y dx

A.  + xy dy = 0
B. (x dy - y dx) + x2y dy = 0
C.  + dy -  = 0
D.  + y dy = 0

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Mathematics

Solve the problem.Joe has traveled  of his total trip. If the trip is a total of 640 miles, how many miles has he gone?

A. 102 miles
B. 128 miles
C. 512 miles
D. 256 miles

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Mathematics

Classify the angle as acute, right, obtuse, or straight.

A. obtuse B. straight C. acute D. right

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Mathematics

Let v be the vector from initial point P1 to terminal point P2. Write v in terms of i and j.P1 = (3, 5); P2 = (-6, 5)

A. v = 9j B. v = - 9j C. v = -9i  D. v = 9i 

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Mathematics