Which of these descriptions of a triangle ABC are directions that can be followed to draw exactly one shape. 9a) Line AB is 2.5 in. LIne AC is 2 in. Angle B is 40 degrees

9b) Line AB is 2.5 in. Line AC is 1 in. Angle a is 40 degrees

9c) Line AB is 2.5 in. Angle B is 60 degrees Angle A is 40 degrees

9d) Line AB is 2.5 in. Angle B is 60 degrees Angle A is 130 degrees

Please help me solve this it's due at 2:45 if you help me I will mark brainliest plus 50 points no clown answer or you will be reported please give me the correct answers.

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.