Trig check my work please?

89,037 results, page 69

applied calculus

Let y=〖tan〗^(-1) x Rewrite it as an equation involving a trig function. Use implicit differentiation to determine an expression for y.

Trig

Use the given information to evaluate sin (a+b). Exact answers only. No decimals. Tan a = 4/3, cos b ='-12/13; neither a nor b are in quadrant III.

Trig

Use the given information to evaluate sin (a+b). Exact answers only. No decimals. Tan a = 4/3, cos b ='-12/13; neither a nor b are in quadrant III.

A.P. Economics (Please check if I'm right)

Leaving class today, you decide to start an economics tutoring business. Your first step is to get the two categories of capital. Next you need to obtain the other factors of production. Specifically, what do you need in terms of land, labor, and capital. My Ans: Physical ...

Chemistry

Hi Im reposting incase my original post doesn't get read. Please see bottom for additional info that I need help getting verified. Many thanks Hi Please help verify my answer to the following question: 0.500g of pure phosphorous was burned in excess pure oxygen to give a ...

Check my CALCULUS work, please! :)

Question 1. lim h->0(sqrt 49+h-7)/h = 14 1/14*** 0 7 -1/7 Question 2. lim x->infinity(12+x-3x^2)/(x^2-4)= -3*** -2 0 2 3 Question 3. lim x->infinity (5x^3+x^7)/(e^x)= infinity*** 0 -1 3 Question 4. Given that: x 6.8 6.9 6.99 7.01 7.1 7.2 g(x) 9.44 10.21 10.92 -11.08 -...

Physics

Sally applies a horizontal force of 500 N with a rope to dtag a wooden crate across a floor with a constant speed. The rope tied to the crate is pulled at an angle of 67.5 degrees. a) How much force is exerted by the rope on the crate? b) What work is done by Sally if the ...

physics

please check Which of the following is NOT a characteristic of electrical potential energy? a. it is a form of mechanical energy b. it results from a single charge c. it results from the interaction between charges d. it si associated with a charge in an electric field A

8th grade math

Can you please check my answer? A spherical balloon has a volume of 268 cubic cm. If more air is pumped in so that its radius is 3 times as long, what is its new volume? My answer: 2,412 cubic cm

Spanish-Please check my answer

This is true or false A possessive adjective is a descriptive word that tells whose something is I think this is false because the possessive adjective describes the noun and not the person who has possession of the item.

languge arts a

8. What form, or principal part, of the boldface verb is used? Everyone is leaving Sarajevo. present present participle***** past past participle **** marks my answer please check need help

History

(So, I have to agree or disagree with regards to the statement provided.. please comment on how I can make my answer better) Confirming Max Weber’s thoughts on the dynamics between religion, economics, and culture--Protestantism and urbanization had a mutual reinforcing ...

differential equations

the directions are to determine whether or not the equation is exact if so then solve it. the question is (x-y^3+ysinx)dx = (3xy^2+2ycosx)dy i solve and i got that it is exact because My is -3y^2+2ysinx and Nx is -3y^2+2ysinx since m and n are equal then they are exact then i ...

Physics-check plz

If a pitcher throws a fast ball with a speed of 35 m/s. The ball has a mass of 220 grams. a) how much work was done in throwing the ball? b) If the catcher catches the ball by moving his mitt 15 cm. backward what force did he exert? a.) Throwing the ball in a positive ...

ENGLISH

Please check for any errors. Please make corrections. Thanks!!! Alexandria treasure may have been found after more than three hundred years! The wreckage of a ship believed to be Alexandria has been located off the coast of Florida. The Alexandria disappeared during a ...

social studies(CHECK ASNWERS)

please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...

social studies (CHECK ASNWERS)

please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...

HUM/205

To what human experience does the work relate? O How is that human experience meaningful to your life? O How does the work express or relate to your human experience? O What social, cultural, and moral values does the work express

science

ogranelle that modifies,packages and transport material out of the cell describes an organism that can exist onlly as a group of cells one of the structures a cell uses t o live ,grow and reproduce Why have you posted all these questions under different names? Why have you not...

math please help Ms.Sue

The team practices in a pool that is 25 meters long. Sam completes a lap in 22.5 seconds. How long will it take Sam to complete a lap in an Olympic-sized competition pool that is 50 meters long if he swims at the same rate in both pools? (A lap consists of swimming from one ...

Grammar ~CHECK MY WORK PLEASE~

THE STARS NEXT TO IT ARE MY ANSWERS!! Select the answer that correctly identifies the part of speech of the italicized word or words in each sentence below. The words are with all big letters. YET, OH, SUDDENLY, BEFORE, THROUGH, OUTSIDE 1) The movie was wonderful, YET it was ...

Social Studies (Please check this)

Which appeals are NOT heard by the South Carolina supreme court? a. appeals from all felonies b. appeals from setting public utility rates c. appeals that deal with the death penalty*** d. appeals dealing with constitutionality of state laws

improving your writing

Please let me know what you think. It's for an exam. Thank you For the past three months, work-related problems have occurred in the office and need to be addressed. Before Jessica Hilo’s medical leave, the workload was equally divided. There were no problems with the ...

Chemistry

three separate questions 1. An empty graduated cylinder weighs 82.450 g. When filled to 50.0 mL, with an unknown liquid it weighs 110.810 g. What is the density of the unknown liquid? 2. It is valuable to know that 1 milliliter (mL) equals 1 cubic centimeter (cm^3) or cc.). ...

English

Can you please check my sentences together with a few more points I need to include in my project work? 1) I really hope you had a good journey back home. All our teachers have been enthusiastic about your visit and your principal's words about the project! 2) They will never ...

physics

Please check my work here: Resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. The circuit voltage is 180 volts. Find: a)the voltage of the parallel circuit b)the voltage across the parallel circuit c)the current through the 10...

college alg

for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 (they look like fractions) A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work

GIVE ME A JOB

WHY CAN`T KIDS WORK? Here is something that may be interesting to you and provide some answers to your question. (Broken Link Removed) Because if they were alowed to work they would be exploited like they used to be.

statistics

a recent poll of 700 peole who work indoors found that 278 of the smoke. If the researchers want to be 98% confident of thier results to within 3.5% how large a sample is necessary? how do i work this problem?

Business Management

Which of the following is not a factor that affects how work is organized? A. Mangement style B. Customer influences C. Company size D. Competitor work styles I ruled out C. & D., but need help with the others.

Philosophy

Can someone please check my answers if it is right. Thank you! True/False 1. Rosenstand argues that moral subjectivism is an intuitively sound, "live and let live" kind of moral position that is both appealing and socially cohesive. -FALSE 2. For the members of the Flat Earth ...

English

Please check my answer thanks :) In which sentence could you best use a semicolon? 1. If you ask me Jerry is a tennis whiz. 2. Lucy bought a new tennis racket and brought it home. 3. Sue loves tennis she plays everyday 4. When she is worried Mary eats a lot. I picked #3

Pre-Algebra

Can I have someone check this please? I wouldn't want to do the whole page, then find out I had done them all wrong. :( [Percents of Change] A $100 digital watch is now $72 Decrease, 72/100 = negative percent. 100/72.00 = .72 .72 - 1 = 30%? Thanks. 30% is my final answer, ...

Social studies

Arrange the following legislation that was passed after the Civil War in the proper chronological order: I. Reconstruction Act. II. Wade-Davis Bill. III. Fifteenth Amendment. IV. Compromise of 1877. A. I.,II., II., IV. B. I., II., IV., III. C. II., I., II., IV. D. III., IV., ...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

identifying a gas (check partial work)

A cylinder was found in a storeroom of a manufacturing company. The cylinder was so old that the label had fallen off, and no one remembered what the cylinder held. A 5 mg sample was found to occupy 4.13 mL at 23 Celsius and 745 torr. The sample was also found to be composed ...

Physics

A 285-kg load is lifted 22.0 m vertically with an acceleration a=0.170 g by a single cable. Determine the tension in the cable. (N) Determine the net work done on the load. (J) Determine the work done by the cable on the load. Determine the work done by gravity on the load. ...

social studies(check answers)

please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...

home work help please

Complete the Multiple Pathways to Learning assessment and the Personality Spectrum assessment. Relate results to your personal study habits. Prepare a 350- to 700-word paper where you answer the following questions: · How may you use the study techniques recommended for your ...

Trig

does sin and tan repeat 2Pi as well? and what do csc sec an cot do? -2PI?

Trig

Solev the equation for t if 0 is less than or eual to t which is less than 2 pi 7sin + radical3 = 5 sin t

trig

If a triangle has angles 35 and 65 degrees, what is the measurment of the third angle? Is it a right triangle?

trig

Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm

trig

Suggest a sine function that will "imitate" the cosine function by manipulating ONE of a,b,c or d. Thank you

trig

Suggest a cosine function that will "imitate" the sine function by manipulating ONE of a,b,c or d. Thank you

trig

Find the exact value of cot 45°, if the expression is undefined write undefined.

trig

If A+B+C=^(^=180) prove that sinA + sinB - sinC = 4sinA/2 sinB/2 cosC/2

Trig

triangle with side lengths 172m, 155m, and 155m. calculate the area.

trig

DISCUSS THE POSSIBLE VALUES OF THETA IF THE RATIO IS COS THETA IS EQUAL TO 0

trig

Verify the Identity: sec(x/2)=the square root of (2 tanx/(tanx sinx))

Trig

Solve the equation in the interval [0•,360•] Csc theta = 1+cot theta

trig

explain the methid used to get the answers 45m*cos33=37.7m and 45m*sin33=24.5

Trig

How do you convert rectangular equations into polar equations? If x4−y4=xy , then r2=atan(b); What is a? What is b?

trig

i have to find a & c, b=2.489*10 to the nineth power and i have one degree 25

trig

the question is: given sec x = 4, tan x < 0, find sin(2x), cos(2x)and tan (2x)

Math/Trig

Solve: 2 cos2 x - 3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi.

trig

prove the identity sec^2x times cot x minus cot x = tan x

trig

if sina,cosa,tana are in geometric progression then prove that cot^6a-cot^2a=1

trig

convert the point with polar coordinates (2,7pi/6) into rectangular coordinates.

trig

Verify the equation is an identitiy: cot(x)tan(x+pi) - sin(pi-x)cos((pi/2)-x) = cos^2x Thanks

trig

The tangent of an acute angle equals 1/2. What is the sine of the angle? (A) 1/p3 (B)p5/2 (C) 2/p5 (D) 1/p5 ( E) None of the above.

trig

5. If the angles X and Y each measure between 0° and 90°, and if sinX = cosY, what is the sum of the measures of the angles X and Y?

trig

How do I solve.... Tan 2(theta) - Cos 4(theta) = 0 Domain: (0-360 degrees) Thank you.

Math/Trig

Which logarithmic equation is equivalent to L^m = E 1) LogL E = m 2) logE L = m 3) logm E= L 4) logE m= L

trig

solve the equation of the domain 0¡Ü¦È¡Ü2¦Ð 3cos^2theta - 5costheta -1 = 3sin^2theta

trig

given cot-A square root of 5, find cot-B at the 4th quadrant.

TRIG

Given that tanx = 1/sqr(15) and secx -4/sqr(15) find the value of sinx

trig

if tan x= 4/3 and pip < x < 3pi/2, and cot y= -5/12 with 3pi/2 < y < 2pi find sin(x-y)

Precalculus with Trig

Rewrite the following expression as an algebraic expression in x: cos(arcsin(x))

math trig

a triangle abc has a mearsure of an adjacent 15 and 25 degree solve for the triangle

Pre-Calc/Trig...

Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=x^2+7

Pre-Calc/Trig...

Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=(x+5)^2

Pre-Calc/Trig

How would I solve this one? I just can't get this one. 6x^2+11x-35=0

trig

solve triangle ABC which have angleA=25.25,angleB=60.51 and a=3.82..find c...,find b

trig

A road has a 10% grade (slope). To the nearest degree what is the angle of elevation of the road?

Trig

Find the algebraic expression that is equal to sec theta - cos (-theta)

Trig

Find sin(x+y), cos(x-y), tan(x+y), and the quadrant of (x+y) if sinx= -1/4, cosy= -4/5, with x and y in quadrant 3.

Math (Trig) lowering powers

If cos^4(3x)-sin^4(3x)=cos(g(x)) then g(x)=? Use a^4-b^4=(a^2-b^2)(a^2+b^2)! thanks in advance for any help!

trig

if sec theta =sqrt -20/3 state the exact value of tan theta

chemistry/check my work I have to submit today

When 27.20mL of .5 M H2SO4 is added to 27.20 of 1M KOH in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction. (Assume that the total volume is the sum of the individual volumes and that density and specific heat ...

history

Please check my work: 1.Diplomatic immunity is based on what assumption a.diplomats will become active members of their new communities b.diplomats will obey the laws of their country of residence c.diplomats have no restrictions on behavior d.Diplomats will be isolated in the...

English

1. The fish I ate upset me. 2. The fish I had eaten upset me. (One more similar question, please. Are both OK? Because of the tense, #2 seems to be better. What about #1? Are both OK? Is there any difference between them?) 3.I had finished the work before my boss came back. 4...

English

You forgot to check these other sentences. I really hope you can go through them, too! 1)Can you check the following sentences for me, please? Can you please tell me a synonym for the words in parentheses? Thank you. 1)Alonso is shipwrecked near an enchanted island with his ...

Chemistry

We have been getting numerous questions like this on assignments and I can't figure them out. Its like I know that there some way connected but I can't figure it out. This is for Chemistry in highschool and its likea review and so they are not going over it but I would still ...

physics please help

black bart and wyatt earp have a race. wyatt moseys 400m in 58.0s and bart moseys the same distance in 60.0s. by what Distance does wyatt beat bart in this race? Please show all work would greatly appreciate have a test coming up and i don't understand at all how to do it

Science

What are the advantages of slower population growth? Please check your assigned reading and post your answer. We'll be glad to help you when we see your thoughts about this subject. No diseases and over crowd True. But a society can provide food, jobs, and medical services if ...

French 1

F Rewrite the following sentences replacing the expression of time with the word in parentheses making any necessary change.My response are bulleted. Please check for me. Thanks again much!!!!! 1.(hier) Aujourd'hui, personne nelave la voiture. (Yesterday) Today, person nelave ...

Dog Breeds

Please check my answer thanks 1. Which of the following dogs would be best suited for an elderly man who lives in a high-rise building, has two cats, and adores tiny breeds? A. Chihuahua B. Pomeranian C. English Toy Spaniel D. Silky Terrier I say A

Math Please check these

Find the Perimeter and area of each square and rectangle. On my actual paper I have the cm and in behind the numbers along with the area's squared sign I just didn't know how to put that on here. 1. L2 W3 A=6 P=10 2. L1 W1 A=1 P=4 3. L7 W1 A=7 P=16 4. L7 W7 A=49 P=28 5. L6 W4 ...

Math(Please check)

You invest $3000 in a savings account where you earn 4% interest compounded continuously a) what is the formula A(t) for the balance after t years? A(t)=3000e^0.04(t) b) How long will it take for the money to double? 6000=3000e^0.04t Is this the correct setup so far or would I...

algebra

Create a unique example of dividing a polynomial by a monomial and provide the simplified form. Explain, in complete sentences, the two ways used to simplify this expression and how you would check your quotient for accuracy. please explain :/ i only remember one way to solve ...

English

Please Check, Thank You! When choosing your search strategy for a search engine, it's best to A. Combine keywords into phrases by using quotation marks B. Enter the least important word first C. use verbs, articles, and capitals D. Ignore alternate spellings Answer A

@lucina0555

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 ...

@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-...

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