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if the eccentricity of an ellipse is 0.43 and the length of its major axis is 11 units, how far from the center are the foci located?
a.
4.321 units
b.
3.435 units
c.
2.365 units
d.
11.437 units

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

The graph of y x3 is translated so that the point (1. 1) is moved to (1, 4). what is the equation of the new graph?