Can you make a triangle with side lengths of 7, 8 , and 15?
a. yes, because 7 + 8 is not less than 15
b. yes, because 7 + 8 is not greater than 15
c. no, because 7 + 8 is not greater than 15
d. no, because 7 + 8 is not less than 15

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Could somebody me with this radical simplification?

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.