# Trig check my work please?

89,108 results, page 70

### @the dude

I have removed the entire test you posted -- without any thoughts of your own, sad to say. If you wish to post the 4 or 5 that you absolutely cannot figure out after reading and re-reading your text, please do so, but be sure to include what YOU THINK the answers are. Then ...

### @Cray

I have removed the entire test you posted -- without any thoughts of your own, sad to say. If you wish to post the 4 or 5 that you absolutely cannot figure out after reading and re-reading your text, please do so, but be sure to include what YOU THINK the answers are. Then ...

### Writing

Would you please proof read and give any suggestions on making this a polished piece? For the past three months work-related problems have occurred, causing conflicts among co-workers. The ongoing problems require attention in order to better assist our daily clients. The in-...

### Chemistry

Determine the simplest formula for compounds that have the following analyses. The data may not be exact. A. 28.5% iron, 48.6% O, 22.9% S This is what I did: 28.5g Fe 1 mole Fe/55.847g = .51 mole 48.6g O 1 mole O/15.999g = 3.04 mole 22.9g S 1 mole S/32.064g = .71 mole (Fe1.0 ...

### Chemistry

How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl? I've concluded the answer is 0.02 moles of H2, but I'm doubting myself a lot because I don't understand the aspects of the balanced chemical equation and how that affects the...

### Math (Trig)

Solve the equation for exact values of x. sin(x) = 1-2(sin(x))^2

### simplyfying expressions (trig)

can anyone tell me how to do this? thanks! (sin (x) / 1 + cos (x) ) + ( cot (x) / 1 + cos (x) )

### Algebra II/Trig

Simplify: 1/5(-5a^2b^3)^2(abc)^4 How do you simplify this. How does the "-5" play a role in this? how would you get 1/5 of "-5"

### 11th grade Algebra 2/ Trig

The expression log 10^(x+2)- log 10^x is equivalent to???

### trig

unsure how to find phase shift,vertical shift of y=-2cos(x+3.14/4)+5

### trig

determine the coterminal angle between -360 and 360 for -540

### trig

How do you find the exact values of sin(u/2), cos(u/2), and tan(u/2) of tan(u)=-5/8

### trig

How do you convert polar coordinates to Cartesian coordinates? And vise versa.

### trig

tan(theta)=(7/24), sin(theta)<0 find cos(2theta)

### Trig

Tan theta 12/5 ,pi <theta<3pi/2 Find sin 2theta

### trig

If cscx=2 and x greater 90 degrees and x less than 180 degrees, then sin x/2 =

### trig

Plot the point and then find three representation of the point (3,2pi/3)

### trig

Suppose that sin x = 1/5 and cos y = 2/3, and x and y are each angles in Quadrant 1. Determine sin(x+y).

### trig

let sin theta = -7/25 with theta in QIV find sec (2theta)

### trig

True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.

### trig

angle x lies in quadrant 3 and cos(x)=-.6. Find cos(3pi/2-x)

### trig

an angle 30 with the distace of 24km and an angle of elevation of 45 with the distance of 15km.

### trig

how do you solve 2nd cos 6/11 (my calculator doesn't have 2nd function0

### trig

Verify that each trigonometric equation is an identity tan^2+1/sec Î± =sec Î±

### trig

Find sin(2theta) if tan of theta = 7/24, pi < theta < 3pi/2 ?

### trig

Derive the identity 1 + cot ^2 theta = csc^2 theta by dividing x^2 + y^2 = r^2 by y^2

### trig

1.Ifg(x)=cos4x,find g'(pie/24). 2.Differentiate y=csc^2 pie*x

### trig

To the nearest degree, determine the measure of <X for each value of tan X if the tan X = 0.25

### Trig

Solve the equation in the given domain cos 4x + cos 2x = 0, 0<(or equal to) x < pi

### trig

A and B are acute angles such that cosA =3 over 5 and cosB =12 over 13

### trig

Prove that the statement is an identity: (tanx/cscx)=(1/cosx)-cosx

### trig

Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25

### trig

If csc theta = 2, then what is theta approximated to 4 decimal points? RADIANS

### math/cal/trig solve for t

solve for t: 0=4sin(2t)cos(2t)-sin(2t)

### trig

If sec theta = radical 5, what is the exact value of cos theta

### trig

If sec theta = radical 5, what is the exact value of cos theta

### trig

find the single term of cos^2 4theta - sin^2 4theta

### Precalc/Trig

Find all values of x, 0<x<(pi/2) for which (1/( root 3))<cotx<(root 3)

### trig

Find the Opposite of the right angle where the angle is 61 degrees and the Adjacent is 10 cm.?

### Trig

The point P(3, 4) is on the terminal side of θ. Evaluate tan θ. 3/4 3/5 4/3 4/5

### Trig

How do I prove that tan(x/2) =( plus/minus) sqrt(1-cos(x/1+cos(x))

### Trig

Simplify (sin^2)*(67.5deg) - (cos^2)*(67.5deg) and then evaluate exactly.

### Trig

Verify that each trigometric equation is an identity. 1/1-sinx + 1/1+sinx = 2 sec^2x

### Advanced Functions/Trig

Prove the identity: cos^4 x + sin^4 x = 1 - (1/2)sin^2 (2x)

### trig, math

In a right triangle with g the right angle, b = 86.5 and c = 125.8. What is β ?

### trig

Find all solutions in the interval [0,2pi]. sin 2x + sin x = 0

### math trig

a triangle has a measured of hypoteneuos 15 and an adjacent of 10 solve for the triangle.

### Trig

Given sin x = 5/13 and 0 < x < pi/2 find the value of sin(π − x). 12/13 5/13 -12/13 -5/13

### trig

If each leg has length 5 meters, what are the lengths of the other leg and the hypotenuse

### Trig

Solve for t algebraically: inverse cos(t) = inverse sin(t). Where do I start?

### Trig

Is a triangle that has sides which measure 8, 15, and 17 a right triangle? Justify your answer, ie,

### math

Trig Identities prove sinx+1 \ 1-sinx = (tanx+secx)^2

### FINANCE

Direct send-Single. Ocean Research of San Diego, California, just received a check in the amount of $800,000 from a customer in Bangor, Maine. If the firm processes the check in the normal manner, the funds will become available in 6 days. To speed up this process, the firm ...

### Finance

Direct send-Single. Ocean Research of San Diego, California, just received a check in the amount of $800,000 from a customer in Bangor, Maine. If the firm processes the check in the normal manner, the funds will become available in 6 days. To speed up this process, the firm ...

### English 7 - Check in My Notebook Day (plz read)

Ok tomorrow at my school we are having Check in My Notebook Day. It's a day when all of your teachers check your binder and/or notebook to see if you have all of your handouts they have you, notes you take in class, you date each classwork papers in order, and papers don't ...

### Physics

A system undergoes a two-step process. In the first step, the internal energy of the system increases by 368 J when 144 J of work is done on the system. In the second step, the internal energy of the system increases by 24 J when 248 J of work is done on the system. (a) For ...

### One more Chem

One more A helium balloon has a volume of 2.30 L at 23.5 deg C and a pressure of 1.00 atm at sea level. the ballon is released and floats upward. At a certain height the atmospheric pressure is 0.810 atm and the temp is 12. C. What is the volume of the balloon? ????? ??? (P1V1...

### PE CHECK ANSWERS

15. Who should address the needs of a patient with a mental disorder? A. speech therapist B. An internal Medicine Doctor C. A mental health Professional*** D. A medical intern 12. If you've started a lot of hobbies all at once, you should watch out for clinical depression to ...

### trig

convert 80 degrees into radians 80 deg *2PI rad/360 deg = ?

### Trig

Find the area of ABC if A=56 degrees, b=20ft, and c=12ft. 1/2(20)(12)sin56 1/2(240)sin56 99.5

### Trig

Verify that (secx/sinx)*(cotx/cscx)=cscx is an identity. (x=theta BTW)

### trig

If sinx = -3/5, tan x > 0, sec y = -13/5 and cot y < 0, find the following: a. csc(x + y) b. sec (x - y) How do I get the answers of a. -65/33 b. -65/16 Thank you

### trig - identies

Assume that A and B are in standard position and that sin A = 1/2, cos A >0, tan B = 3/4, and sinB<0 Cos (A-B)

### Trig

Rules of Logarithms: Can someone explain how to do: 1) e^(2(ln)(x)) 2) e^(-lnx) I know the rules I just don't understand how they apply.. thanks!

### trig

Given that sin(5x-28)degree=cos(3x-5),0 lessthan x lessthan 90degree,find the value of x.

### trig

find the fundamental solution set (FSS) for(cos2θ)(tanθ+1)=0

### Trig

Given that tan(pi/2) = a. Express tan(x) and sin(x) in terms of a. Hint: Use the fact that x = 2.(pi/2)

### trig

given that tan(x/2)=a. Express tan(x) and sin(x) in terms of a. Hint: use that fact that x= 2*(x/2)

### Trig.

In right triangle ABC, C is the right angle and sinA=(radical 3/2). What is the value of csc B?

### Pre- cal Trig

2cos^2x=cosx. Can you subtract the cos from cos^2? Or what would i have to do?

### Trig, Math

State the amplitude, period, phase shift, and vertical shift of f(x)=2cos(1/2x-pi/6)-1/3

### Math/Trig

Solve: sin x - 2sin x cos x = 0 for 0 is less than or equal to x is less than 2pi.

### trig

Cos theta= 1/3, find the remaining trigonometric functions of the acute angle theta

### trig

The parametric equations for a curve in the x-y plane are x=2+t^2 and y=4-3t. Determine the points where the curve intersects the x-axis.

### trig

if x and y are positive acute angles, tan x=1/3and tan y =1/4, find the value of sin(x-y)

### trig

Use the appropriate identity to find tan(theta) given that cot theta =0.05.

### trig

Given that sin theta= 3/5 and the terminal side is in quadrant II, find tan (pi/2 - theta)

### trig

whatis the possibilities for the square root of 2 times tan theta = 2 sin theta

### trig

a right triangle contains a 25 angle. if me leg is of length 5 inches what is the length of the hypotenuse

### Trig

Prove that the equation is an identity: cot4theta - csc4theta = -cot sq theta - csc sq theta How ??

### Trig

3. In the figure below, the perimeter of the parallelogram ABCD is (6a + 8b + 29) and the perimeter of the triangle ACD is (3a + 4b + 32). What is the length of AC

### Trig

cos45cos25 - sin 45sin25 = ?? a. cos70 b. sin70 c. cos 20 d. sin 20 which answer is correct ?

### Trig

If the center of a circle is at (2,2) with a radius of 4 the equation of the graph would be : a) (x-2)^2 + (y-2)^2 = 16 b) (x+2)^2 + (y+2)^2 = 16 I think it would be b is that correct?

### trig

A ship sails 40 miles SOUTH and 15 miles EAST. Find the bearing from where it began? HELP.

### trig

find all the values of X between 0 and 2π such that cos(3x-π/2) = √3/2

### Trig

Is the angle 11pi/12 on the unit circle the same as the angle -pi/12? I'm thinking it would be, but I'm not sure.

### Trig

What is the exact value of tan(s+t) if sin(s+t)=56/65. And cos(s)=5/13 and sin(t)=4/5. Everything is in the first quadrant

### trig

If it is given that tan(A-B)=tanA-tanB/1+tanAtanB and tanP-1/1+tanP=tan195 find p

### Precalc with Trig

What value(s) of x from 0 to 2pi solve the following equation: cos squared x - cos x - 6 = 0

### trig

find the minimum and maximum value of sin100 degree plus cos100 degree

### Trig

Evaluate and simplify cos(-15º). Hint: Substitute 30º-45º for -15º.

### trig.

If P (x, y) is the point on the unit circle determined by the real number θ, then tan θ= x/y y/x 1/x 1/y

### Trig

If the terminal side of an angle theta contains the point (-1,3), find secant theta.

### Trig

Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, find Cos(A-B).

### statistics/ please help ASAP

a set of data is normally distributed with a mean of 500 and a standard deviation of 100. a) what would the standard score fora score of 700 be? b) what % of scores is between 500 and 700? c) what would the percentile rank for a score of 700 *please show and answer all ...

### Calculus - Integrating

Question: ∫(x^2)/sqrt(x^2+1) u=x^2+1 , x^2= u-1, du=2xdx ∫(u-1)/sqrt(u) , expand ∫u/sqrt(u) - 1/sqrt(u) Integrate: 2/3(u^(3/2)) - 2u^(1/2) + c My answer: [ 2/3(x^2+1)^(3/2) - 2(x^2+1) + c ] When I took the derivative of this to check my answer, it was not (x^2)/sqrt(x^2+...

### Grammar and Composition

please check: indicate the relationship of each pair by writing S for synonyms, A for antonyms, and H for homonyms. 1. here/hear : H 2. opinioned/unyielding : A? 3. altogether/all together : H 4. misunderstood/misinterpreted : S 5. moderate/excessive : A 6. course/coarse : H 7...

### To Reiny

Reiny could you please check my Calculus post below, it says Calculus--Reiny.

### bobpursly & countiblis,math

I thought that we can solve anything with equations is it always polynomials. Isn't this the same thing as finding the unknown for an equation. As i said in my previous message or am i wrong. Also what about the rational expressions what are some challenges about working with ...