Iving Systems of Equations PO
Solve the system of equations below by either substitution or elimination
WORK MUST BE SHOWN TO RECEIVE CREDIT FOR THIS PROBLEM.
S4z +9y = 5
1-4z + 7y=11
Enter answer as a coordinate point (x, y) with no spaces. If infinite solution or no solution write it out.
Solutions
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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?

What is the y intercept of f(x)=(1/2)^x?

Harry and jay are both flying on the same plane with an airline that randomly assigns seats to passengers. of the 182 total seats on the plane, 62 are window seats, 58 are middle seats, and the rest are aisle seats. what is the approximate probability that both harry and jay will be assigned aisle seats on the same plane? a. 11.48% b. 3.3% c. 2.08% d. 26.26%