Describe the solution to the system of equations graphed below.

6x + y = -12
18x + 3y = -36

a.
the system has the unique solution (3, 36).
b.
the system has the unique solution (6, 10).
c.
the system has infinitely many solutions of the form y = -6x - 12 where x is any real number.
d.
the system has no solution.

If value of cos330° is √3/2 then find tan165°.

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec