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