Give the slope of y+ 2 = 3(x-7) and a point on the line.
a. the slope is 3 and (7.-2) is on the line.
b. the slope is 2 and (7,3) is on the line.
c. the slope is 3 and (-7, 2) is on the line.
d. the slope is 7 and (3, 2) is on the line.

Explain why the factor 1.5 is broke. into two numbers in the model.

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

Identify the number as a regional or irrational. explain. 291.87