Questions on Algebra: Trigonometry answered by real tutors!

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Question 235902: the area of a right triangle is 250in(squared). Find the lengths of its legs if one leg is 5 inches longer than the other.
Click here to see answer by solver91311(5072)

Question 235952: Please help me solve this problem:
How far does the tip of the minute hand of a clock move in 20 minutes if the hand is 5 inches long?
Thank you
Click here to see answer by Alan3354(6092)

Question 235897: Find a) the GCF and b) the LCM:::
28,35, and 42

another one:
9x(to the 2nd power)y and 36xy(to the 3rd power)
Click here to see answer by xmoo22xx(3)

Question 235991: Verify that sec theta/ sin theta (cot theta/ csc theta)= csc theta is an identity. I'm not understanding how to do this. PLEASE HELP!
Click here to see answer by Alan3354(6092)

Question 235990: I have two questions. If someone could please help that would be great!! Thanks!
1. Sketch the angle with measure -2pi/3 radians. Then label its reference angle.
2. State the phase shift of y= cos(theta - pi/3). Then grph the function.
Click here to see answer by solver91311(5072)

Question 235403: A carpenter charges a set fee for each job in addition to his hourly charge. If a carpenter bills his customer $125 for a job which takes him 3 hours and bills a second customer $200 for a 6 hour job, how much would he charge for a job that takes 8 hours?
Click here to see answer by ankor@dixie-net.com(6693)

Question 235989: State the vertical shift and the equation of the midline for y=4 cos theta -1.
Click here to see answer by Alan3354(6092)

Question 236069: Simplify the trigonometric expression.
cos^3(x)+ sin^2(x)cos(x)
Click here to see answer by stanbon(26291)

Question 236032: Use the fact that the trigonometric functions are periodic to find the exact value of each expression. Do not use a calculator.
cos 33pi\4.
Click here to see answer by Alan3354(6092)

Question 234857: i need help: find csc theta if sin theta equals negative two thirds and theta is in quadrant four
Click here to see answer by Alan3354(6092)

Question 234996: PLEASE HEPL ME TO SOLVE DOES FUNCTIONS:
1.sin 205degree
2.cos (-140degree)
3.tan (-40degree)
4.sin 30degree + tan 45degree times cos 90degree
Click here to see answer by Alan3354(6092)

Question 236197: how would i verify the identity: (sect-1)/tsect= (1-cost)/t
Click here to see answer by stanbon(26291)

Question 236196: how would i verify the identity: 2sin cubed theta cos theta+2sin theta cos cubed theta= sin2 theta
Click here to see answer by stanbon(26291)

Question 236231: Simplify the trigonometric expression.
cos(x)/(tan(x)+sec(x))
Click here to see answer by Alan3354(6092)

Question 236180: sin theta and cos theta are given. Find the exact value of the each of the four remaining trigonometric functions. Please explain.
sine theta = 2 sqrt5/5, cos theta = sqrt5/5
Click here to see answer by Alan3354(6092)

Question 236338: how to find the exact value of sin 225
Click here to see answer by nerdybill(2446)

Question 236374: why is the sine of 150 degrees positive?
Click here to see answer by nerdybill(2446)

Question 236357: Write the polar equation T = 45 degrees in rectangular form.
(T is theta.)
Thanks very much for your help!
Click here to see answer by jim_thompson5910(13794)

Question 236334: use the fundamental identities to simplfy csc^2(beta)((1-cos^2(beta))
Click here to see answer by jim_thompson5910(13794)

Question 236440: Find the exact value of tan(105°)

Click here to see answer by Edwin McCravy(2922)

Question 236664: how do you complete the square of x^2+6x=-22?
Click here to see answer by stanbon(26291)

Question 236774: if cos of theta is < 0 where would terminal side of the angle be located?
Click here to see answer by nyc_function(260)

Question 236855: factor the polynomial
a^4+a^2
Click here to see answer by checkley77(7072)

Question 236853: factor the polynomial
x^2+x-6
Click here to see answer by checkley77(7072)

Question 236850: multiply as indicated.
(x-1)(x^2+x+1)
Click here to see answer by checkley77(7072)

Question 236884: sin (2x)=2/5
Click here to see answer by nyc_function(260)

Question 236584: Find the EXACT values for the coordinates of the point W in the figure below. The angle =300 and radius r=9 are labeled in the figure. Do not approximate.

W= ( , )
Click here to see answer by nyc_function(260)

Question 236926: Find sin(x/2), cos(x/2), and tan(x/2) from the given information
tan(x)=2; 0 degrees< x <90 degrees
Click here to see answer by Alan3354(6092)

Question 236950: PLEASE HELP ME SOLVE THIS TRIGONOMETRIC FUNCTIONS:
tan (-40degree):
the three possible anwers are:
a)-tan40degree
b)tan40degree
c)tan50degree

Click here to see answer by stanbon(26291)

Question 236852: Find the GCF and LCM
9x^2y and 36xy^3
Click here to see answer by edjones(3298)

Question 236959: solve the equation...
x^2-3x=10
i think the answer is x=5 but not sure
Click here to see answer by edjones(3298)

Question 236959: solve the equation...
x^2-3x=10
i think the answer is x=5 but not sure
Click here to see answer by checkley77(7072)

Question 236960: PLEASE HELP ME SOLVE THIS TRIGONOMETRIC FUNCTIONS:
cos(-140degree)
there are the three poossible anwers
a)cos(-40degree)
b)-cos 40degree
c)cos 40degree
Click here to see answer by solver91311(5072)

Question 236957: factor this please
4x^4-4x^2+1
Click here to see answer by edjones(3298)

Question 236955: factor the polynomials
6x^2+13x-5
Click here to see answer by checkley77(7072)

Question 236955: factor the polynomials
6x^2+13x-5
Click here to see answer by mando271(42)

Question 236936: PLEASE HELP ME SOLVE THIS TRIGONOMETRIC FUNCTIONS:
GIven that sin0=4/5 and 0 lies in quadrant ll,find the following value. tan 0
Click here to see answer by RAY100(1637)

Question 236971: PLEASE HELP ME SOLVE THIS TRIGONOMETRIC FUNCTIONS:
sin 205degree
the possible answers are:
a)sin155degree
b)sin25degree
c)-sin25degree
Click here to see answer by Theo(675)

Question 236921: Simplify the expression by using a double-angle formula or a half-angle formula.
7cos^2(theta/9)-7sin^2(theta/9)
sin(theta/6)cos(theta/6)
Click here to see answer by jsmallt9(594)

Question 237149: Can you please tell me what is the value of cos 780 degrees?

Click here to see answer by rfer(2688)

Question 237241: please prove: sin8(x)=2sin4(x)cos4(x)
Click here to see answer by rapaljer(3622)

Question 237313: PLEASE HELP SOLVE THIS TRIGONOMETRIC FUNCTIONS:
Given that sin0=4/5 and 0 lies quadrant ll,find the following value.cot 0
the possible answers are:
a)-4/3
b)-3/4
c)-4/5
Click here to see answer by solver91311(5072)

Question 237320: PLEASE HELP ME SOLVE THIS TRIGONOMETRIC FUNCTIONS:
Given that sin0=-1/2 and 0 lies in quadrant lV,find the following value.sec 0
the possible answers are:
a)-2
b)square root of 3/2
c)(2/square root of 3)/3
Click here to see answer by eggsarecool(32)

Question 237287: write in simplest form without negative exponets. leave as fractions.
(2/3)^2(4/5)^-1
Click here to see answer by edjones(3298)

Question 237284: write in simplest form without negative exponets. leave as fractions.
10^-3
Click here to see answer by jim_thompson5910(13794)

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