Trig check my work please?

89,452 results, page 72

algebra trig honors

x squared minus four thirds x plus four over nine

Math/Trig

State the amplitude, period, phase shift, and vertical shift of f(x)=-1/4sin(6x+2pi)+9

trig

80 feet from the base of a tower the angle of elevation to the top is 36 degree find the height of the tower

trig

find the period and amplitude of each sine function.then sketch each function from 0 to 2pi: 1)y=-3.5 sin 5theta

trig.

Find the degree measures of 2 angles, one positive and one negative that are co-terminal with 135.

trig

if point P is a point on the terminal side of 0, and 0 is in standard position, find sin 0,cos 0 and tan 0. 1. P(-6,8) 2. P (1,3) 3. P (-2,-40), 4. P (-5, -12)

trig

Use a graph of the cosecant function to find the value of theta for which csc theta equals 1.

trig

Use trigonometric identities to find sec theta, given that tan theta = Radical 5/ 3.

Trig

Using tables or a calculator, find tan 16 degrees 15 + cot 32.7 degrees to the nearest hundreths

trig

the basic N of an antenna rests on horizontal ground. the angle of elevation of the top R from a pt H on the ground is 42 degrees

trig

determine the phase shift of y = sin(3x - 2pi). indicate whether the shift is to the right or left.

trig

How do i solve this equation over the interval [0degrees,360) cot(theta)+2csc(theta)=5

Trig-Algebra help asap

A rhombus has sides of 5 cm and one diagonal is 6 cm long. Find the area of the rhombus.

Trig-Algebra help asap

A regular octagon is inscribed in a circle with a radius of 5 cm. Find the area of the octagon.

Algebra-Trig help asap

A rhombus has sides of 5 cm each and one diagonal is 6 cm long. Find the area of the rhombus.

trig

a vector has a magnitude of 16 and direction of 120 degrees. write the vector in terms of unit vecotrs i and j.

Algebra & Trig

at a throwing speed pf 12.2 meters per seconds,what is the angle that produce a distance of 13 meters

math

Simplify sin 2 theta over 2 cos theta to a single primary trig function

trig

Find the maximum and the minimum values of sinx + cosx and the smallest value of x which they have these values

trig identities

Find the exact value of cos (2theta) given csc theta = 8/3 and 0 < theta < pi/2

trig

what are the values of the angle in the interval 0<the angle<360 that satisfy the equation tan beta- radical 3=o

Trig

Find the area of a sector with the given central angle θ in a circle of radius r. θ = 90°, r = 6 cm

trig

The point (-3, 4) is on the terminal side of angle θ in standard position. Find cot θ.

trig

Find all real numbers in the interval [0,2pi) that satisfy the equation. cos^2 x+2 cos x+1 = 0

Trig

2 vectors at a Right angle to each other are pulling on a bolt. vector 1 = 650; vector 2 = 300 then R = ?

Trig

Write a quadratic equation whose roots are 5 + i radical 2 and 5 – i radical 2 ____ x^2 + _____ x+ ______=0

trig

I have arrived at .322 as the sine of the angle how do I find the actual angle (in decimal/deg)

Pre-Calc/Trig...

Which of the following is the equation of a line parallel to the line y = 3x + 2, passing through the point (10,1)? 3x + y = 29 3x - y = 29 -3x - y = 29 3x + y = 29

Trig

Determine the intervals of continuity of f(x)= ln(sin(x)) I looked at the graph and I have no idea how to state the intervals.

Trig

Write an algebraic expression for the following: sin⁡(arctan⁡〖(x+1)/(x-1)〗 )

trig

Find the magnitude and direction angle of the vector v. v = 4(cos 125°i + sin 125°j) ||v|| = θ =

trig

Find the component form of v and sketch the specified vector operations geometrically, where u = 4i − j, and w = i + 5j. v = −u + w v = ( , )

Spanish #2 (URGENT)

Can someone check my work? Create a sport skit/presentation using commands and actions. Escuchanos! Vamos a enseñar cómo jugar al futbol. Pon en los zapatos de fútbol. Trae un balón de fútbol. Va al campo. Golfea el balon con el pie. Corre al balon y golfea de nuevo. ...

trig

If sin = 4/5 with A in QII, and sin B = -3/5 with B in QIV find cos(A-B)

trig

Graph the following from X = 0 to x = 2 pi 2cos 6x cos4x + 2 sin 6x sin 4x

trig

Prove the identity sin(3 pi /2 + x) + sin(3pi/2 -x) = -2cosx

trig

If an angle is pie radians, what is the arc length in radians?

trig

if a and b are acute angels and sin(a+b)=1,sin(a-b)=1/2 then prove that (1)tan(a+2b)=-(3)1/2

trig

trying to find lowest term: cos^2 è-1/4 cos è -1

trig

How do I solve this? If cos x= 3/5, find the exact value of cos 2x

trig

csc(x)=3 and pi/2 less than (x) less than 3pi/2, find cot(x).

trig

Prove: 1-sinx/1+sinx=sec*2x-2secxtanx+tan*2x

trig

verify the identity: sin(x+y)-sin(x-y)=2cosx siny

trig

HOW DO YOU SOLVE THIS PROBLEM, sin theta>0,cos theta>0

Trig

Solve for 0<x<2pi ---> (2radical2)cos^2(x)-(radical2-2)cos(x)-1=0

trig

if sin theta = 2/3 in quadrant 1, find sec theta. HELP!!!

Trig

find (s+t) given that cos s=1/3 with s in quad I and sin T=-1/2 with t in quad IV

trig

covert polar equation r = 6/(2-3sinè) to rectangular equation

trig

Evaluate the expression cos 22 degrees and sec 22 degrees

trig

If 2tanA+cot A=tan B, then prove that 2tan(B-A)=cot A

trig

if cot 17 degrees = 3.2709, find tan 73 degrees

trig

if x=4 tan theta, express cos(2 theta) as a function of x

Trig

Eight Fundamental Identities Sec thada - Cos thada How do I do this?

Trig

IfA=340°, prove that 2cosA/2 = -(v1+sinA) - (v1-sinA)

trig

How to get 5degree without using calculator using identities?

Trig

tan(θ) = a (a ≠ 0), find cot(θ).

trig

Prove 1+cos X/1-cos X = (csc X + cot X)squared

trig

sin(x) = 8/17 and 90 degrees < x < 180 degrees then find cos2(x)

trig

verify the identity algebraically- (5-5 cos x)(5+5 cos x)=25 (sin^x)

trig

verify that 2/1+cos theta - tan squared (theta/2) = 1

trig

prove: (tan x + sec x)^2 = 2sec^2 x + 2tan x sec x - 1

trig

prove: (tan x + sec x)^2 = 2sec^2 x + 2tan x sec x - 1

trig

If sin A= 1/4 and sin B= -1/2, with A in QII and B in QIV, find tan(A+B)

trig

evaluate the expression tan (257pi/4) a.-1 b. -(sqrt2)/2 c. 1 d. (sqrt2)/2

trig

explain how you will find the coordinate of P(14pi/3) if you knew the coordinate of P(pi/3)

TRIG

Verify cos x/1+sinx + 1+ sinx/cosx = 2sec

trig

Solve tan2A - 2tanA = -1 for 0º≤A≤360º.

precalc/trig

olve for the interval [0, 2pi]. cos(x+ pi/4)+cos(x- pi/4)=1

trig

sec0+ten0-1/tan0+sec0+1=1+sin0/cos0

Trig

Find the reference angle θ'. θ= -7pi/9

trig

choose the expression that is equivalent to the given expression. 2 cos^2 4x-1

trig

Write the standard form of the equation where p=π and o=7π/12

trig

solve the equation on the interval [0, 2pi]: tan^2 x - 3 tan x + 2 = 0

Pre-Calc/Trig...

if h(x)=(fog)(x) and h(x)=3√x+3 find g(x) if f(x)= 3√x+2

math,correction

simplify: 7sqrt(7x) + 5 sqrt (7x) My work: (7+5)sqrt (7x) My answer: 12sqrt (7x) is this correct? It looks fine. Good work. Thanks for asking.

Physics

If it requires 7.0 of work to stretch a particular spring by 2.1 from its equilibrium length, how much more work will be required to stretch it an additional 3.7?

Physics

What force does work on a ball rotating down an inclined plane? Explain why the other forces the ball experiences do not do work.

physics

If it requires 5.5 J of work to stretch a particular spring by 2.0 cm from its equilibrium length, how much more work will be required to stretch it an additional 4.1 cm?

College Physics

It takes 164 kJ of work to accelerate a car from 23.7 m/s to 27.8 m/s. What is the car's mass? I tried using this equation but it didn't work KE = 1/2mv^2

Math

Jenifer works in a flower shop. On Saturday she started work at 8:45 a.m. She finsihed at 4:15 p.m. How many hours did Jenifer work after noon?

science

a cart was pulled for a distance of 1 kilometer and the amount of work accomplished equal 40.000 joules. with what force was the work accomplished?

science

a cart was pulled for a distance of 1 kilometer and the amount of work accomplished equal 40.000 joules. with what force was the work accomplished?

math

Jennifer works in a flower shop. On Saturday she started work at 8:45 a.m. She finished at 4:15 p.m. How many hours did Jennifer work after noon?

Math

Tiffany’s pay varies directly with the number of hours that she works. If she earned $77.28 for 4 h of work, how much will she earn for 15 hours of work

English

(mean,means)Fluoridated water.........fewer Americans are toothless today. (visit,visits)Grandparents and children alike..........their dentist for regular check ups. (love,loves)Dentists.......the fact that there is more awareness about dental hygeiene. (is,are)Despite the ...

physics - work

Imagine you find a 2 kg book on the floor and lift it 0.75 meters and put it on a table. find the work done ?

physics

what is the efficiency of a pulley that requires a worker to do 250 J of work to lift an object that requires 170 J of work

8th grade Science

How do I show work for Si + Cl ?? The answer is SiCl with a little 4 down below the Cl. but I don't know how to show the work.

Maths - IQR

Hi! How do you work out the Inter Quartile range? WHats the name for xbar and how do you work this out? THanks

fluid power

a cyclinder must move a 2000lb load 2 ft. how much work must work in perform

math

'the accountant charged $23 for the hour of work and $23 for each for each hour after that . He earned a total of $127. How many hours did he work'

Math

What is 50x50 and why pls show work (don't show adult work I'm in 6 grade I'm not going to understand lol)

Global

made peace with PLO; shot by fellow Jew? who was that Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this specialty online right now, be sure to ...

AIG MATH

The weight of Meg's dog is 2 1/2 times more than that of her cat. If both animals weight 42 lbs, find the weight of each animal?Please show your work.

Gen Chem II

A gas-forming reaction produces 1.60 m3 of gas against a constant pressure of 127.0 kPa. Calculate the work done by the gas in joules. Please explain. Thanks!

algebra

simplify the following expression fully. I can't get some functions to work. Please read in the parenthesis. These are stacked. 1 + 1 (each 1 is underlined)) a b (a to b is underlined) a _ b (a and b is each underlined) b a (the minus sign is correct) Thanks

English

Could you please check these sentences on illnesses, please? Thank you in advance. 1)I’ve got backache as a consequence of my slipped (herniated?) disc. I need to express this when I’m at the chemist’s or at the doctor’s. I need also to express that I need cortisone as...

math check

Posted by Nora 56 on Sunday, June 2, 2013 at 7:32pm. Sorry to repost but no one answered after I posted on the 2nd,please help, Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is left-handed. (Give your answers correct ...

us history

which answer best explains the contributions of women during the revolutionary war? a) women were in charge of the horses and artillery during the revolutionary war. b) women often poisoned British troops stationed in their towns during the revolutionary war. c) women served ...

math ( CHECK MY WORK)

1. on 3 tests, a student scored a total of 258 points. if the student improved his performance on each test by 5 points, what was the score on each test a. 81,86,91 b. 80,85,90 c. 75,80,85 d. 70,75,80 is the correct answer A. 2. an item costs x dollars. the tax rate is 5% of ...

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