Ineed ! which statements are true? choose all answers that are correct.
a. 7+(–10) < –13+17
b. 22+(–13) > 18+(–7)
c. –18+24 = –23+17
d. –11+(–8) > 4+(–26) quick

Solve for x where 0 equation: cot^2x+2cotx+1=0

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

Which net represents the pyramid below? meh