Mathematics, 29.06.2020 22:01, izabellabyan
Complete the proof of the Law of Sines/Cosines. Triangle ABC with side b between points A and C, side c between points A and B. Segment drawn from point A to point D where D is between points B and C, segment AD is labeled x. Given triangle ABC with altitude segment AD labeled x. Angles ADB and CDA are _1._ by the definition of altitudes, making triangle ABD and triangle CDA right triangles. Using the trigonometric ratios sine of B equals x over c and sine of C equals x over b. Multiplying to isolate x in both equations gives x = _2._ and x = b β sinC. We also know that x = x by the reflexive property. By the substitution property, _3._. Dividing each side of the equation by bc gives: sine of B over b equals sine of C over c. 1. altitudes 2. b β sinB 3. b β sinB = c β sinC 1. right angles 2. b β sinB 3. b β sinB =c β sinB 1. altitudes 2. c β sinB 3. c β sinB = b β sinC 1. right angles 2. c β sinB 3. c β sinB = b β sinC
Answers: 1
Mathematics, 21.06.2019 12:50, Chartwig4576
Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.
Answers: 3
Mathematics, 21.06.2019 13:30, 19thomasar
The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whaleβs head is 1β3 of the length of its body. a new baby whale is 1β4 the length of a grown whale. the average man is 1β17 the length of a blue whale, and 1β1,818 its weight. a human baby measures 1β4 of the length of an adult. calculate the following information: how long is a whaleβs head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?
Answers: 3
Mathematics, 21.06.2019 19:00, datands
Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)
Answers: 2
Complete the proof of the Law of Sines/Cosines. Triangle ABC with side b between points A and C, sid...
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