Estimate the product. round each factor to the nearest whole number, and then multiply.

4.218 × 2.578

the product is approximately?

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Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

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?