Use the quadratic formula to solve the equation.x2 - x = 20
A. 1, 20
B. -4, -5
C. -4, 5
D. 4, 5
Answer: C
Mathematics
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Solve the initial value problem.
= - 
cos 
?, r(0) = -5
A. r = -sin 
? - 5
B. r = - 
sin 
? - 5
C. r = sin 
? - 5
D. r = cos 
? - 6
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Expand the number to its natural form.2.53 × 105
A. 2,530,000 B. 253,000 C. 25,300,000 D. 25,300
Mathematics
Find percent notation for the fraction notation in the sentence.In one company, nine out of every ten employees use all their sick time. What percent use all their sick time?
A. 10% B. 1% C. 9% D. 90%
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Find zw or 
as specified. Leave your answer in polar form.z = 
w = 
Find 
.
A. 3
B. 3
C. 
D. 
Mathematics