(07.02 mc)

given the triangle below, which of the following is a correct statement?

right triangle abc with ab measuring 6, ac measuring 3, and bc measuring 7.

sec angle b equals 3 over 7
cot angle b equals 3 over 2
sec angle b equals 7 over 3
cot angle c equals 1 over 2

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?

If i purchase a product for $79.99 and two accessories for 9.99 and 7.00 how much will i owe after taxes applies 8.75%

Which expression is equivalent to 64 - 9x^2?