Provide an appropriate response.The curve of a normal distribution has a shape that is a mirror image above the mean compared to below the mean. This means that a normal distribution has a 
curve.
Fill in the blank(s) with the appropriate word(s).
symmetrical
Mathematics
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Find a polar equation for the circle.x2 + 
x + y2 = 0
A. r = 
sin ?
B. r = - 
sin ?
C. r = 
cos ?
D. r = - 
cos ?
Mathematics
Solve the problem.Using a phone card to make a long distance call costs a flat fee of $0.88 plus $0.25 per minute starting with the first minute. What is an equation of the form 
for this situation?
A. y = 0.88x + 0.25 B. y = 0.25x + 0.88 C. y = 0.25x D. y = 0.88x
Mathematics
Evaluate the polynomial.P(x) = 2x3 - 4x2 + 31, P( 2)
A. 39 B. 19 C. 21 D. 31
Mathematics
Solve. Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.81k2 - 36 = 0
A. 
, 0
B. 6, 0
C. 
, - 
D. 
, - 
Mathematics