Mathematics, 26.06.2020 15:01 ayshajabeenmeox5jrh
Henry is asked to find the exact value of cosine StartFraction 10 pi Over 3 EndFraction. His steps are shown below. 1. Subtract 2 pi from StartFraction 10 pi Over 3 EndFraction as many times as possible: StartFraction 10 pi Over 3 EndFraction – 2 pi = StartFraction 4 pi Over 3 EndFraction 2. Find the reference angle for StartFraction 4 pi Over 3 EndFraction: StartFraction 3 pi Over 2 EndFraction – StartFraction 4 pi Over 3 EndFraction= StartFraction pi Over 6 EndFraction. 3. The cosine value for StartFraction pi Over 6 EndFraction is StartFraction StartRoot 3 EndRoot Over 2 EndFraction. 4. The cosine value is positive because StartFraction pi Over 6 EndFraction is in the first quadrant. Which of the following describes Henry’s errors? The reference angle should be StartFraction pi Over 3 EndFraction, and the sign of the value should be negative. The reference angle should be StartFraction pi Over 3 EndFraction, and the cosine value for StartFraction pi Over 3 EndFraction is One-half. The sign of the value should be negative, and the reference angle and quadrant should be determined by subtracting Pi in the first step. The cosine value for StartFraction pi Over 6 EndFraction is One-half, and the reference angle and quadrant should be determined by subtracting Pi in the first step.
Answers: 2
Mathematics, 21.06.2019 16:00
Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483
Answers: 1
Mathematics, 21.06.2019 19:00
Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers
Answers: 1
Mathematics, 21.06.2019 21:30
The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?
Answers: 3
Mathematics, 21.06.2019 22:00
Find two consexutive odd integers such that the sum of their square is 650
Answers: 2
Henry is asked to find the exact value of cosine StartFraction 10 pi Over 3 EndFraction. His steps a...
Chemistry, 09.03.2021 17:50
English, 09.03.2021 17:50
Mathematics, 09.03.2021 17:50
Mathematics, 09.03.2021 17:50
Social Studies, 09.03.2021 17:50
Mathematics, 09.03.2021 17:50
Mathematics, 09.03.2021 17:50
History, 09.03.2021 17:50
Mathematics, 09.03.2021 17:50