The graph below shows the solution to which system of inequalities? 10
10
O A. y2 +x+2 and y< 4x+1
O B. y< **+2 and yz 1x+1
OC. ys 5x+2 and y> 4x+1
O D. y> 5x+2 and ys **+1

Help quick.

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?

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)