# Questions on Algebra: Trigonometry answered by real tutors!

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 Algebra: Trigonometry Solvers Lessons Answers archive Quiz In Depth

 Question 621829: How many distinct triangles can be formed if a=12, b=9, and angle A= 38degrees? please add detail on how to find the correct answer! Click here to see answer by Edwin McCravy(8999)

 Question 622270: If sin theta = 0.4, then find cos(90-theta) Click here to see answer by Alan3354(31538)

 Question 622030: please help me solve this triangle? is there more than one way using sine and cosine or just one strategy with a SAS triangle? angle B= 72 degrees, angle C = 82 degrees & side b= 54 Click here to see answer by jsmallt9(3296)

 Question 622255: Find all values of θ, if θ is in the interval [0°, 360°) and has the following function value sinθ = - sqrt3/2 Click here to see answer by lwsshak3(6765)

 Question 622780: If the hypotenuse of a 45°-45°-90° triangle is 18√(2) inches long, what is the length of one of its sides? Click here to see answer by richard1234(5390)

 Question 622899: exponential equation how do u solve 252x+3 = 255x-9 next one 98x-4 = 813x+6 Click here to see answer by Edwin McCravy(8999)

 Question 622943: If 12 tan = 5 and 90degrees < A <360 degrees what is 5 Click here to see answer by Alan3354(31538)

 Question 622941: exponential equations 4^3x-3=8^4x-4, 9^-X-5=27^6x-10, 125^3x-4=25^4x+2, 4^x+35=64^x-3, (1/64)^0.5x-3=8^9x-2, 3^x-4=9^x+28, (1/4)^2x+2=64^x-1, (1/2)^x-3=16^3x+1, 3^6x-2=(1/9)^x+1 Click here to see answer by ewatrrr(10682)

 Question 623063: There is a right triangle (not to scale), the adjacent side is 11 inches, the hypotenuse is x (the value to be found), and the adjacent angle is 28 degrees. I have to use either sine, cosine, or tangent. The options are: a.)12.5 in. b.)10 in. c.)13 in. d.)9.7 in. I used cosine and got 9.7, but on the online course I'm taking it said "d.)9.7 in." is not the correct answer. Could you please help me find the correct answer and explain how you did it? Thank you. Click here to see answer by jsmallt9(3296)

 Question 623086: Find the missing value to the nearest tenth. tan__= 78 How do you solve for this? I have tried using the tangent inverse, but it marks it wrong. Please explain how you solved it. Thank you. Click here to see answer by Alan3354(31538)

 Question 623085: A conveyor belt carries supplies from the first floor to the second floor, which is 24 feet higher. The belt makes a 60° angle with the ground. a. How far do the supplies travel from one end of the conveyor belt to the other? Round your answer to the nearest foot. b. If the belt moves at 75 ft/min, how long, to the nearest tenth of a minute, does it take the supplies to move to the second floor? Could you please explain how you get the answer? Thank you. Click here to see answer by MathTherapy(1484)

 Question 623142: find the angular velocity in degree and radian if a motor turns at 2000 rpm? Click here to see answer by lwsshak3(6765)

 Question 623209: the angle of elevation of the top of a tower from a point A on the level ground is 62 degrees.if the point A is 10 metres from the foot B of the tower.find the height of the tower,find the distance between the pair of points (3,5) and (-2,-3),find the equation of a straight line of slope 3 if it passes through the point (-2,3) Click here to see answer by ewatrrr(10682)

 Question 623198: Find the exact value of sin θ, if cos θ = 4/5 and θ lies in quadrant IV. Click here to see answer by Alan3354(31538)

 Question 623327: If tan 35 = y , then (tan145 - tan125)/(1+tan145 tan 125) = ?? Click here to see answer by lwsshak3(6765)

 Question 623162: if 2 cos (theta) = cot (theta) and 0 less than or equal to (theta) less than 2 pi, then theta= ? Click here to see answer by lwsshak3(6765)

 Question 623384: please help me solve this problem: HEIGHT OF A PROBLEM: In traveling across flat land, you notice a mountain directly in front of you. Its angle of elevation (to the peak) is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of a mountain. Click here to see answer by Alan3354(31538)