A lumber company is making boards that are 2777. 0 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 29 boards is made, and it is found that they have a mean of 2780. 9 millimeters with a standard deviation of 12. 0. Is there evidence at the 0. 1 level that the boards are either too long or too short

d. is the correct answer

step-by-step explanation:

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)