Given the functions, f(x) = 3x - 6 and g(x) = x2 + 5x + 7, perform the indicated operation. when applicable, state the domain restriction.
f(g(

options:
1. x2 + 8x + 1
2. 3x2 + 15x + 21
3. 3x2 + 15x + 15
4. 3x3 - x2 - 9x - 42

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?

Ana drinks chocolate milk out of glasses that each holdof a liter. she has of a liter of chocolate milk in her refrigerator. 10 how many glasses of chocolate milk can she pour?

In the diagram, gef and hef are congruent. what is the value of x