Find the sum of the sequence.
A. 272
B. 53
C. 400
D. 384
Answer: D
Mathematics
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Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.4x2 - 3x - 7 = 0
A. x = 
, -1
B. x = 
, 1
C. x =
, -1
D. x = 
, 1
Mathematics
Find z1z2. Write your answer in standard polar form with the argument in radians.z1 = 4 
, z2 = 7 
A. 28 
B. 11 
C. 28 
D. 11 
Mathematics
Solve the formula for the indicated variable.P = 
for r (finance)
A. r = 
B. r = 
C. r = 
D. r = P - tA
Mathematics
Provide an appropriate response.A student claims that the equation tan ? + 1 = sec ? is an identity, since by letting ? = 0° we get 0 + 1 = 1, a true statement. Comment on this student's reasoning.
What will be an ideal response?
Mathematics