Pls will ! what is the solution for the system of equations? use the substitution method to solve. y=5−3x 5x−4y=−3 enter your answer in the boxes

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?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³