The graph of x2 + y2 = 9 is shown on the grid. By drawing the line x + y = 2,
solve the equations x2 + y2 = 9
x + y = 2
x= -0.9
y =
or
X=
y =
Note: Please give your values
to 1 decimal place.

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?

98 point question what is the record for most points in one

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?