# Questions on Algebra: Trigonometry answered by real tutors!

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 Algebra: Trigonometry Solvers Lessons Answers archive Quiz In Depth

 Question 266599: show that f(x)=(x-2)/(x+3) is invertible by finding its inverse. (a) what is the domain of f(x)? the range of f-1(x)? (b) what is the domain of f-(x)? the range of f(x)? Click here to see answer by drk(1908)

 Question 266671: SKATEBOARDING The angle that a skateboarding ramp forms with the ground is 25 degrees and the height of the ramp is 6 feet. Determine the length of the ramp. Click here to see answer by drk(1908)

 Question 266759: Which property of the real numbers is illustrated by the following statement? -6 x (17 + 14) = -6(17) + (-6)(14) Click here to see answer by stanbon(57377)

 Question 267832: in triangle ABC if A=54.3degrees B=63.8 degree and b=12.2 find a Click here to see answer by Alan3354(30993)
 Question 267832: in triangle ABC if A=54.3degrees B=63.8 degree and b=12.2 find a Click here to see answer by stanbon(57377)

 Question 234000: Airport B is 300 mi from airport A at a bearing N 50°E (see the figure). A pilot wishing to fly from A to B mistakenly flies due east at 225 mi/h for 40 minutes, when he notices his error. (a) How far is the pilot from his destination at the time he notices the error? Round your answer to the nearest mile. _ miles (b) What bearing should he head his plane in order to arrive at airport B? Round your answer to the nearest degree. N _ degrees East i can copy picture of diagram on email cause i cant on this, thanks for understanding Click here to see answer by jkid(1)

 Question 269123: Hoping someone will help me with a few more. I need to see the steps:) Verify: a)sinx(sinx+cscxcos^2x)=1 b)tanx((cotx/cosx)-sinx)=cosx c)(1+cosx)(1-cosx)=sin^2x Click here to see answer by stanbon(57377)

 Question 269122: I was hoping someone could help me with these:) VERIFY: a)secx(cosx+cos^3xcsc^2x)=csc^2x b)secx(sinx+sinxsecx)=1+secx c)tanx(cscx+cotxcscx)=secx+cscx Click here to see answer by stanbon(57377)

 Question 269111: An airplane flies 180 miles from point X at a bearing of 125 degrees, and then turns and flies at a bearing of 230 degrees for 100 miles. How far is the plane from point X? Click here to see answer by Edwin McCravy(8909)

 Question 269256: I am having trouble finding the LCM of 9x^2y and 36xy^3.. I know how to factor the numbers out, but what confuses me are varibles.. can you please help?? Click here to see answer by AnlytcPhil(1277)

 Question 269983: what is the formula for solving "what is the diagonal of a rectangle?" Click here to see answer by rfer(12666)

 Question 270202: Factor the Trinomial. x^2 - 5x + 6 Click here to see answer by drk(1908)
 Question 270202: Factor the Trinomial. x^2 - 5x + 6 Click here to see answer by anicole(2)

 Question 270203: 2x^3 + x^2 - 2x - 1 factor out completely. . Click here to see answer by palanisamy(496)
 Question 270203: 2x^3 + x^2 - 2x - 1 factor out completely. . Click here to see answer by anicole(2)

 Question 270234: (-a^2b)^4 (7a^-3)^2 ___________________ b^3 Simplify. I am having some major troble with this problem. Click here to see answer by Alan3354(30993)

 Question 270239: 2(x^2 - 1) - 3(x +5) Simplify. Could some explain? Click here to see answer by drk(1908)

 Question 270317: How do I know which are the vertical asymptopes of y=tan(pi)x ? I know the period=1 and that an appropriate interval would we (-1, 1). Click here to see answer by jim_thompson5910(28598)

 Question 270943: Find a formula to describe the amount of money in an account that started with \$50 and and increases at a compound interest of 4.5% per year after t number of years Click here to see answer by rfer(12666)

 Question 271061: Give the exact value of theta in degrees rounded to the nearest tenth if sin theta=.3 and 90 Click here to see answer by Alan3354(30993)

 Question 271498: trying to help my son but it has been 30 years for me doing these. Click here to see answer by Edwin McCravy(8909)

 Question 271794: A wheel with a 38- inch radius is marked at two points on the rim. The distance between the marks along the wheel is found to be inches. What is the angle (to the nearest tenth of a degree) between the radii to the two marks? Click here to see answer by ankor@dixie-net.com(15659)

 Question 271789: Approximate the length by finding the necessary arc length. A television tower 440m high subtends an angle of 5degrees 50'. How far away is the tower? Click here to see answer by Theo(3464)

 Question 271791: Solve the problem. Round answer to 2 decimal places What is the difference in area covered by a single 10-inch windshield wiper operating with a central angle of 126degrees compared to a pair of 3-inch wipers operating together each having a central angle of 106degrees? Click here to see answer by ankor@dixie-net.com(15659)

 Question 272182: need help on 2 problems with the directions- find all solutions of the equation in the interval (0,2pie) algebraically. 1. cosx + sinxtanx = 2 2. secxcscx = 2cscx Click here to see answer by stanbon(57377)

 Question 272243: Find the missing sides and angles e=33 g=38 E=60 Click here to see answer by Alan3354(30993)