Trig check my work please?

87,713 results, page 50


solve for x in the following equations: 1) sin(arcsin x) = 1 2) 2arcsin x = 1 3) cos(arccos x) = 1/3


How do you decide if csc=74 is greater than or less than cos=74 without using a calculator?


If the line OP of radius and(x,y) is rotated through a certain angle about the oringin


Write down 3 other possible trig forms for - 1 + isqrt2. How do you solve this?


Expan each of the following using the compound-angle formulae:sin(x + 20degree)


find the general solutions to the equations: 1) sec x = -2 2) 2 sin^2 x = 1 3) cos^2 x - 2cos x + 1 = 0


16. Let W(ƒá ) be a point in Quadrant I on the unit circle with center O. W(ƒá )B is perpendicular to the x-axis at B, OB = 0.6. and W(ƒá )B ƒ­ 0.8. Find:


Find all angles in degrees that satisfy the equationtan∝ +√3=0


Give the following for the function: y=2+cos(5x+3.14 Amplitude: Period: Phase Shift:


y=sec(2x+1) Find the period and phase shift. Sorry i'm really bad at these.


How do i find the exact value of sin 15 using the half angle formula


Write the log as a single function: logx + 2logy - logz


find the values of x between 0 and 2 pi where the tangent line to the graph of y = sinxcosx is horizontal

Algebra & Trig

calculate the velocity of 10 meters per second with an angle of 30 degrees


Show that the height, h, of the A-frame is equal to the expression 5sinc(1+2cosc). Im not sure what to do.


find the exact value of sinu/2, given that cosu=-4/5 and pi/2less than u less than pi


find the exact solutions over the interval tanx = 1 all real x


How would I solve this problem for t? 720 = 11.895+2.545sin [2pi/366(t-80.5)]


how to solve for the value of sine and cosine function of 0,90,180 and 270 degrees?


Solve exactly over 0 ≤ θ < 2π secx + tanx = 1


Convert this equation so that it could be entered into a calculator in the standard y= format. x^2 - 4xy + 4y^2 - 8y + 2 = 0


Rewrite -2x^2 + sqrt(3)xy - y^2 +2 = 0 with the xy term eliminated. Round terms to nearest hundredth.


Use sum and difference identitites to find the exact value of co 15 degrees


slove the equation exactly over the interval [0, 2pi) sinx=1-2sin^2x


Through how many degrees does the minute hand of a clock moves in 5 minutes? In 1 1/2 hours?


Rewrite the expression (tan A)(cot A) in terms of a single trigonometric ratio.

math - trig

Why cant we solve an oblique triangle with the Law of Sines if we are given SAS?


In ΔABC, a = 19, c = 10, and m∠A = 111. Which statement can be used to find the value of C?


Find the 6th term of the arithmetic sequence with a9=120 and a14=195


y=-x^2+5x+36 converting into intercept form is this the correct answer? y=(x+9)(x-4)


Solve the polynomial equation. 15x^3-119x^2-10x+16=0


solve each equation if 0 < x < 2pi. answer must be in radians 1. 4 cos x - 2 = 0 2. 3 sec^2 - 4 = 0


For each parabola, tell in which direction the graph opens. x= 1/2y^2 y= -1/24x^2

trig help

Find the equation of the hyperbola satisfying the given conditions. Vertices at (5, 1) and (-7, 1); asymptotes (y - 1) = 1/3(x + 1) and (y - 1) = -1/3(x + 1)

trig plz help

Solve, finding all solutions in the interval [0, 2π). tan(3x) = -1


find the equation for the cosine function that has an amplitude of 3/5, a period of 3pi/2 and a y-intercept of 5.


Find the exact value of the trig function below. cos2Ø if sinØ = 2/5


A spring scale being used to measure the weight of an object reads 17.1 N when it is used on earth. The spring stretches 4.40 cm under the load. The same object is weighed on the moon, where gravitational acceleration is 1 /6 g. Find the reading of the spring scale on the moon...


A roller in a sheet-metal processing plant has a diameter of 1.77 m and a mass of 5871 kg. Assume the roller is a solid cylinder. a) What is the moment of inertia of the roller? b) What is the kinetic energy of the roller when it spins at 4.28 rad/s? Please provide all work ...


A couple of assignment questions: Assume that the market for annual physical check-ups is in equilibrium, and not everyone gets an annual physical check-up. What is the effect on price and quantity if a government regulation fixes prices at the current level and requires ...

Physics-Please check

I'm trying to find the gravitational force of an electron at earth's surface. I know I say Fg = mass electron * gravity Gravity in this case is 6.673*10-11 m^2/kg^2 correct, not 8.93 * 10^-30N that we used for force of acceleration, right. I use the universal constant of ...


In class we were asked to provide an one example of classical and operant conditioning. We have to identify the stimulus, response and reinforcers in each example. here are my examples: Clasical Conditioning- My cat comes running everytime she hears the can opener. Operant ...


During a particular thunderstorm, the elctric potential difference between the clouds and the groud is Vcloud-Vgroud = 10^9 volts with the cloud being at the higher potential. Now, there is a lightning flash in which a charge of -25C is transferred from the ground to the cloud...


Please check my answer thsnks :) When preparing a formal business presentaion, the phase that can make or break your report is the _________ phase. 1 2 revision outline 3 4 organization writing I picked 3


Please check my answer thanks You bought 4 chairs for $22.oo each a table for $212 and an umbrella for $85 what is the total bill if your sales tax rate is 6% 22x4=88 then add 88 212 + 85 ___________________ 385 x 6% _________________

Law and Ethics in Med

Please check my answer thanks :) Give an example of paternalism prevailing over autonomy? My answer is ... Requiring a Jehovah's Wittness to receive blood transfusions against her will.

Health/ Basic Clinical Procedures

please check my answer thank you True or Faise I said True Cilia prevent the entrance of pathogens into the body by providing an acidic envioroment

behavior problems (dogs)

Please check my answer thanks When a well-trained dog is placed in a stay and ignores a distraction, the dog is showing A. intelligence. B. sociability. C. dominance. D. impulse control. I picked D


please check this one question: Which interaction of nature binds atoms and molecules by attracting unlike charges and repulsing like charges? a. strong b. weak c. electromagnetic d. gravitational A

Algebra 1B

I can not figure out the answer to this problem. (^6)(-7^6+5) I'm not sure if that sign is correct. It's suppose to be the symbol that looks like a check mark and goes over the 6 on left and over the 6+5 on right. Please help


Can you please check these two sentences? to spend much money to safeguard (or: on the safeguard/on safeguarding?) its water resources. The verbs underlined will be included in your test. The others will be tested orally)


Can you please help check the sentence again. I forgot to include the verb. If you want, you can help me write a short description of your school including the summer courses and the students' mobility opportunities your school offers.

to your reply, please check again

that should of said Zero: 5 - 3 i for the one that stated use the given zero to find the remaining zeros of the function h(x)=x^4-15x^3+60x^2+70x-816

Math: Please check

A playground is shaped like a rectangle with a width 5 times its length (L). What is a simplified expression for the distance between opposite corners of the playground? A.) L square root 26 B.) 5L C.) 26L^2 D.) 6L Thanks

history #4

Check please?~?~ i think its C. or A. 1.Which is an example of place? A. the Pacific Northwest B. a town with a big-box store C. Washington state's Mount Rainier D. the states and parts of states known as Appalachia

check my science hw please.

30. Laws can help endangered species by prohibiting A. Captive breeding B.habitat preservation C diversity of genes D. products made from the species I got D, I have a feeling that this may be wrong.


Trace and explain in your own words the literary periods We will be happy to critique your work or thinking, but we do not do the work for you. Do you have a question about this assignment? We will be happy to critique your work or thinking, but we do not do the work for you. ...


Bill has 30 coins, some nickels some dimes. They equal $2.10. How many nickels are there? What is the equasion used to solve this problem? When I solve it, I get 4.3 nickels, but how can there be .3? Please help me solve I posted the two equations for this about an hour ago. ...

Kim what about this one?Can you please help me wit

Thanks,what abou this one? Use the Substitution method to solve the system of equations. x + y = 10 y = x + 8 follow the same principle for the first one and u'll get it u already have y = x + 8 Subst. that in the first eqn and just follow up from there CAn you just help me ...

Algebra :/

A bank offers two checking plans anywhere charge .15 cents a check; accucheck cost .77cents a month plus 8 cents per check. For what number of checks will the accucheck plan cost less than anywhere check? Less than 11 checks? More than 11 checks? 11 checks? 11 or more checks?

math , steve or damon pls

for questions 15 and 16, multiply. write in scientific notation (9x10^4)(8x10^6) 7.2x10^25 1.7x10^11 7.2x10^11 1.7x10^25 (1.7x10^-4)(5x10^-5) 8.5x10^-9 8.5x10^20 6.7x10^-9 6.7x10^20 for 15 I'm thinking it is c and 16 could be A pls check my work and explain what i did wrong


A 290 kg piano slides 4.6 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. (a) Calculate the force exerted by the man. N (b) Calculate the work done by the man...

Trig - Identies/equation, please help!

2Sin(Θ+47°)=1 ΘЄ[0°, 360°) What I did: Sin(Θ+47°)=1/2 Sin 1/2 = Θ+47° 30°+360 = Θ+47° 343° = Θ Ok, so how do i find the other solutions? In this problem its 103°. I think we were suppose to do something with the graphing calculator ...

Quick English help

Please check each of my answers from these short stories in "The House On Mango Street". Please correct me if I'm wrong! "Our Good Day" 1. How does Cisneros use a simile on the first page of this vignette? A. To highlight the difference between cathys friendship and that ...

algebra 2

My data has a median of 4, a mode of 3 and a mean of 3.56. Would this mean my data set was normally distributed? I think my data set is not normally distributed but can someone just check my work for me?

law and ethics in med

please check my answer thanks :) Which of the following is MOST pertinent in a legal or court room context? 1. confidentiality 2. privileged communication 3 etiquette's expectaion of privacy I think it might be #2 I am not really sure


can someone check my answer please? solve using multiplication principle. -4x>1/11 The way I solved it was dividing both sides by -1/4 to isolate x then I simplified left side which is -1/44 simplifying it to -1/11 is this correct or did I miss a step somewhere?


Can someone please check to see if I balanced this chem. equation which is an incomplete combustion reaction: 2C3H8 + 11O2 ->> 3CO2 + 4H2O +2CO +C(s) My answer: 7C3H8 +22O2 -->> 6CO2 + 28H2O +4CO +11C Thanks!

Business Law

To obtain a social security number you must complete a form and show evidence of where you were A. live B. where to school C. go to Church D. were born I chose D. Check my answer to make sure please? Because I was stuck between A ad D.


Which sentence contains a participle phrase? A. she wanted to spend time writing. B. her job is giving the attic dwellers their food. C. quickly snatching up the coat, she ran to her room. D. to get along well requires cooperation. C ? please check


Which word or phrase below best describes the function of the urinary bladder? Filter Storage tank Blender Passageway*** Help me please i am trying to check my test and make sure all the answers are right

Social Studies

Which early civilization had a well-organized, unified empire with an elaborate system of roads covering more than 10,000 miles?   Iroquois Aztecs Mayan** Incas can someone check my answer please?


2 sqrt of 12 time sqrt of 6 12*6 2*36*2 12 sqrt 2 check this problem for me please.

Please check if these math questions are correct

8 = p - 5 Answer: p = 13 21 + y = 35 Answer: y = 14 6x = 54 Answer: x = 9


2 divided by 4/4=8 2. 1/7 divided by 3=1/21 3. 4 divided by 1/5=20 Can you please double check the above.


I have a trig question regarding a ferris wheel, radius 35m, axles 37m, clockwise direction, rotates twice every 10 mins. I have calculated the following function: h = -35cos(2pi*X/5)+37 I have calculated at what height I would be after 3 minutes by substituting X=3 in the ...


can someone please answer these 2 questions please..with the work and answer,ive been stuck on for a while and just wanna sleep but thanks. Find the unit price for each option shown below. Round to the nearest cent when necessary. Indicate which option is the better buy. ...

Algebra: please check

Find the equation of a line that passes through the point (1,2) and has a slope of 1/3. Show how you found the equation. Would the equation be: y-2=1/3(x-1) Do I need to finish this? I am not sure how.


7. Which of the following pairs are art movements? A. Impressionism, Victorian B. Renniasance, Expressionism C. Renoir, Classicism D. Art Deco, Cubism My answer is B and you please check @Ms.Sue


12) 2 1/7 x 3 2/3= 15/7x11/3=165/21=55/7=7 6/7 13)Divide. Write the answer in simplest form 3/7 divided by 2/3=9/14 14)1/8 divided by 3/4=1/6 15)2 1/7 divided by 3 2/3=45/77 Can you please check to see if I got the above answers correct Thank you


how would you begin this question? An empty 15.0 L cylinder, .500 moles of gaseous PCl5 are added and allowed to reach equilibrium. The concentration of PCl3 is found to be .0220M. (Temp at 375K) PCl3(g) + Cl2(g) --> PCl5(g) i need to fine how many moles of PCl5 remain at ...

Math Check

The only inequalities where I have to check the values between the points are polynomial and rational inequalities, right? And not any other type of inequalites By Checking I mean to know which way to shade on a graph Just making sure

Honors Chemistry (check answers)

On a worksheet we got, we have to balance out chemical reaction equations then define what kind of reaction it is (synthesis, decomposition, single/double-replacement). Would someone be willing to check my answers, please? Thanks!! 1. c) BaO + H2O ==> ________ (synthesis...


I need someone to check my work not sure if I'm doing this right. The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must be 1.5 times the height, what should each dimension be? HINT: Let x represent one ...


On any given day, the probability that Megan will be late for work is 0.2.Whether or not she is late to work is independent from day to day. Megan was late to work today. What is the probability that she will NOT be late to work tomorrow?

Spanish Check

Hello! Can someone please help me check my answers? I really appreciate it and thanks! Directions: Rewrite the following English sentences in correct Spanish form. The verb you will just is limpiar. 1.) I cleaned the house. 2.) Has Juan cleaned the house? 3.) They cleaned the ...

Math 116

42/-6=-7 check these problem 3(c-5)= 3c-15= c= 3/15 C=5 Check this answer for me. Find decimal notation for the fraction -1/17. The decimal notation for the-1/17 is round to the nearest hundreth i get 589


Q. When your doing a multiplication problem, for example 84 times 37 = 3,108, how do you check the answer without a calculator? - A. I'm kinda confused on how to check the answer, do i do 84 times 400??


if d sum of two numbers is 8 and their product is 15.if the answer of this equation is 3and5 find the number and check let the two numbers be xandy and you must check

ged math

Using estimating.$195 of erin's $1190 monthly check goes for a car payment. What percent of Erin's check is used for this payment?

Math Check

Hi! Can someone check my answer for this question? Thanks! Question: List the following circles in order based of their radius. List them from smallest to largest. A.) x^2+y^2-6x+8y-9=0 B.) (x-3)^2=9-(y+4)^2 C.) (y+4)^2=3-(x-3)^2 D.) (x-3)^2+(y+4)^2=1 My answers: d,b,c,a

Language Arts

1. Which of the following choices best describes the information given in a thesaurus? A. etymologies, or word origins and histories B. synonyms, often suggesting word connotations C. definitions of words with multiple meanings** D. pronunciations and parts of speech of words ...

Language Arts...Help please!

Could someone help me please. Select one of the following three types of organization: -cause-and-effect -chronological -comparison-and-contrast Then, using your selected mode of organization, write a paragraph on a topic you select yourself. Choose a topic that will work well...

Algebra-Please check

y = 2x^2 I am to decide if this is a linear, quadratic or exponential function. I chose that the above function is quadratic. Am I right?

Math(Please check)

State whether the expression is a polynomial. If it is, state the degree. a) 3x^2 - 7x + 2 = yes;3 b) 3x - 2/x = No c) sqrt2x^2 - 3pi = yes;2 sqrt2x + 5x = yes;1 Am I correct?


Please check this and make sure i did it right.. How many centimeters are in 8534 millimeters? And i got 853 centimeters.. is that right? thanks!

Math - derivative of f(x) (check)

f(x)= (x^2-1)^3,is its derivative f'(x)= 6x^5 -12x^3 + 6x. Is there an alternative answer, because a computer generated answer is diff then mine. please help.

Algebra-Please check

y= 6x is written as: Choices y = log(6)x x = log(6)y I chose y = log(6)x, correct?I did the inverse so x = 6^x isolate y so it becomes y = log(6)x

Math(Please check)

Find the derivative of f(x)=7x-19 at x=2. I think that the derivative would be 7 and theb times 2 so 14. Is this correct or would it just be 7.

Algebra(Check Please?)9nth Grade

3.) 3x + y = -8 My answer: Y=-8 + -3x 4.)2x - y = 11 My Answer: y=2x + -11 5.) 4x + -8y = 24 My answer: y = 32x + -192 6.) 15x + 10 = -14 - 9x My answer: NEED HELP WITH THIS ONE.


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