Trig check my work please?

88,597 results, page 92

Probability PLEASE CHECK

What is the probability of a game being sold if 18,980,000 of that title was sold out of a total 68320,000 different video games Is it 19,989,000/68320,000 1890/6832 = 27.77% rounded to nearest tenth

English

2. What are the qualities which a teacher should have for students? - She should know how to teach students effectively. She should prepare the materials with which she can teach students as well. She should also know how to deal with students who make others distracted...

Physics

A 10 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 86 N parallel to the incline, which makes an angle of 30 ° with the horizontal. Assuming the coefficient of kinetic friction is 0.4 and the crate is pulled a distance of 7.5 ...

math-PLEASE CHECK

Find the surface area and volume of each of the following figures: d.Right circular cylinder v=pir^2h pi(3)(3)(6) pi(54) v=169.6 cubic cm sa=2pi r^2 + 2pi rh 2pi(3)(3)+2pi(3)(6) 2pi(9)+2pi(18) 56+113=169 Sa=169 square cm is this right???

MATH

KENDRA SETS A GOAL OF SAVING $50 IN 8 WEEKS. during the first 2 weeks, she was able to save $10. please check ; what fraction of the $50 did she save in the first 2 weeks? 10/50 what percent of the $50 did she save? 10% at this rate, how long will it take her to reach her goal...

Physics

Describe situations where no work is done and situations where work would be done?

math

how do i show my work for, 5+10/(1*(8+6)-4=6 ya i know the answer but i wanna know how to show my work.

econ

Suppose an individual has 60 hours of time available in the week and has to decide how much to work. The hourly wage is $ 10 and he has $ 50 per week from a government subsidy. 1. (15 points) Draw an equilibrium where the individual choose to work 50 hours per week. now my ...

English

A: Hello. May I speak to Tom? B: Speaking. Who's calling, please? A: Hi, Tom. This is Sam. How are you doing? B: Just fine. How's your new school? A: It's great. By the way, what are you doing? B: I'm playing computer games. A: Will you come to Yunsan Middle School? B:Why? A: ...

geography

1. What country is due south of Egypt? Sudan 2. Is Phnom Penh or Hanoi the capital of Vietnam? Hanoi 3. Besides the Soviet Union, what other country borders the world's largest lake? Iran 4. What river runs west to east across the northern part of Italy? The Po River Can you ...

Social studies***help***

please check my answers 1.A 2.D 1.Which of he following is the greatest threat to the island's resources? (central american and the caribbean) i included that because i think that is the islands. A.biodiversity B.hurricanes C.deforestation D.ecotourism 2.What causes hurricanes...

Dogs Hunting Training

Please check my answer thanks :) Typically what is the generally recognized maximum distance for a retrieve ? A. 100 feet B. 250 feet C. 100 yards D. 200 yards My answer is C 100 yards

Spanish

Hola! Could you please check my work to see if my answers are correct? Muchas gracias! A) ASOCIACIONES. Asocie la palabra o frase con su equivalente. 1. darse prisa andén cambio no importarse ***ir rápido billete 2. transbordo andén ***cambio no importarse ir rápido ...

English

1. He had to check the oven every 15 minutes. 2. He had to check the oven every 15th minute. (Are both grammatical?) 3. Mom will give me turkey sandwich for lunch for the next two week. (Is 'for lunch' an adjective pharase or an adverbial phrase? Does 'for lunch' modify '...

Chemsitry

How do you find the amount in moles of excess reactant that reamins Please retype that, minding your spelling. =) Can you please show me how to determine the amount in moles of excess reactant that remains Sorry about the mistakes =) This is part of an excess reagent problem. ...

Socials-Ms. Sue

To: Napoleon Bonaparte From: Sara, Senior Advisor Subject: Continental System 1. Advantage for Britain: None Disadvantages for Britain: Loses money because of trade embargo from Europe *will not be able to trade with other countries *Won't be in debt anymore Can you please ...

Introduction to Graphic Design

Hello! Thanks for checking my question out! ____ 6. What term used to be defined as “removing a paragraph or other segment of text from a manuscript with a blade and gluing it into a different part of the manuscript”? (1 point) a) calligraphy b) clip art c) crop d) cut and...

Health care

Please check my answer thanks :) By creating a committe on social welfare, the Americain Association of Labor Legislation helped to 1. decrease public hospital costs 2. implement fee schedules 3. implement health care coverage for the working class and needy. 4. create the ...

dog behavior

please check my answer thanks Which of the following statements decribes operant conditioning A. it primarily involves involuntary respones controlled by the reaseacher B. it involves behavior modified by consequences C. it involves the modification of reflexes through trial ...

geography

1. Cape Agulhas is the southernmost point on what continent? Africa 2. What capital city is near 20 degrees N latitude and 100 degrees W longitude? Mexico City 3. Would you probably find a scale of 1-inch equals 1,500 miles on a map of your city, state or world? World Can you ...

English

Could you please check these last sentences? Thank you very much. 1) I'm quite long, straight, brown-haired.(Should there be a hyphen to separate adjectives?) 2) After homework I help my mum with the housework. 3) Can you say “at 13:45 o’clock”? It’s a five-minute ...

Physics

A 25 g bullet is fired from a rifle with a barrel of length 65 cm. The bullet starts from rest at one end of the barrel and experiences an average force of 1200 N due to the expanding gases as it moves down the length of the barrel. a) Calculate the work done on the bullet by ...

Math

Hi Trying to work with confusing Taylor series....any assistance would be much appreciated!! How can I use T(x)=5-9((x-2)^2)-3((x-2)^3) to approximate the f(0) ???? I realize that Taylor series f(x)=f(a)+f'(a)(x-a)+f''(a)((x-a)^2)etc... but the above T(x) is centered at x=2, ...

Geometry

A regular hexagon is circumscribed about the ring surrounding the clock face. The diameter of the ring is 10in. Find the perimeter if the clock face. Please included work/steps to solve. Thanks!

Graphing Circles - Finding the radius

A circle is tangent to the y-axis at the point (0,2) and passes through the point (8,0). Find the radius of the circle. I tried using distance formula but it doesnt work? Help please thanks.

Algebra 2

Please show your work to find the mean and standard deviation of the data. Round to the nearest tenth. 20, 16, 18, 14, 9, 20, 16 I know i have to add all them and divide the answer by 7. And that's my mean , But Idk how to get the standard deviation ?

math

you have apple, mapple, oak, poplar, and spruce trees. about how many different groups can u make with three different trees? please help this is alot of work and i have until 4;45 to get it all done!

math

a rectangular frame has a length of 3 and 1/8 feet and an area of 2 and 3/4 feet. what is the width ,w, in feet, of the frame? 0.67 feet i don't know if i am correct so i want you to show the work with me please because i really don't understand what the question is asking me...

8th Grade Electives Advice

Hi, I'm really struggling with my decision about two electives that I really like. One is Journalism and the other is Creative Photography. If anyone knows or has experience can you please tell me the pros and cons about these two electives please? Also, I only have a few days...

English Improving writing

please check this for me he is my rough draft (again) Please check this for me thank you very much :) There are on- going problems that need to be addressed at the DMD company. First there is uneven allocation of tasks. While Bonnie and Molly are working overtime at least ...

trig

tanx = 5/12 and sinx<0 Find sin2x and cos2x How to get the answers of sin2x = 120/169 and cos 2x = 119/169?

trig

Prove that cos4x=8cos^4x-8cos^2x+1 so I'm guessing you begin with the left side cos4x=cos2(2x) then im kinda lost

trig

sorry the first one I put in had a typo cosx/1-tanx + sinx/1-cotx = sinx +cosx

trig

Prove that tan4x=(4tanx-tan^3x)/(1-6tan^2 x+tan^4 x) *note: the exponents are just numbers. there are no variables in the exponents.

trig

Establish the trigonometric identity (Hint: Use sum to product) cos(5x)+cos(3x)/sin(5x)-sin(3x)=cot(x)

trig

Solve the equation sinθ=0.3 to the nearest tenth. Use the restrictions 90°≤θ≤180°.

trig

which ser of lenths will form a triangle with greater area? 6ft,8ft, 10ft or 6ft,8ft,12ft...

trig

suppose sin(x)=4/5 and cos(y)=-12/13, and x and y are in the second quadrant. determine the value of each expression: sin(x+y), cos(x-y), cos2x, sin2y.

Trig math

PLEASEE HELPPMEEE!!!! cot2x+sec2x=tan2x+csc2x and 1+2sinxcosx/sinx+cosx=sinx + cosx

trig

Find the sign of the expression if the terminal point determined by t is in the given quadrant. cos t X sec t in any given quadrant

trig

Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the exact value of tan(theta) and cos(theta).

trig

Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the exact value of tan(theta) and cos(theta).

Trig

Let (theta) be an angle in quadrant II such that sec(theta) -4/3 . Find the exact values of cot (theta) and sin (theta).

trig

suppose theta is in the interval (90,180 degrees) find the sign of csc(-theta) is it positive or negative = positive???

trig

THE SIDE OF A RIGHT-ANGLED TRIANGLE ARE 3XCM,3X-1CM AND 4X PLUS 1CM ,THE LAST SIDE BEING THE HYPOTHENUS FIND X.

Trig/Math

RST is a triangle with right angle S. If s- 21.3 Angstroms and t=8.71 Angstroms, find the measure of the larger acute angle.

trig

How do you find 2.8 revolutions per second in radians? I understand that two revolutions would be equal to 4pie but how do you find the 0.8?

trig

How do I get exact measures? cosine 270 degrees sin 90 degrees tan 360 degrees csc 45 degrees no calculator!

trig

CSC(theta)=1.92 Find Theta. Now I know CSC = 1/sin but no matter how I enter it into my cal I get an error.

trig

A wheel rotates at 100 revolutions per second. find the angle velocity in radians per second.

trig

If tan A = 2 and A belongs to [pie,3pie/2] then the expression cos A divided by sin cubed A +cos cubed A is equal to what?

trig

Find z1z2 and z1/z2 for the pair of complex numbers using trigonometric form. z1=4+9i, z2=-5-5i I got z1z2 = 25-65i But cannot find the z1/z2.

Geometry/Trig

A plane is flying and show an air speed of 130 mi/h. However, there is a 20 mi/hr crosswind. What is the resulting speed of the plane.

trig

cos/sin use 2npi and tan uses npi, but how do you know when to add 2npi or npi to the solution of the equation?

trig/ellipse equation

Find an equation of an ellipse satisfying the given conditions: Vertices: (-1, -8) and (-1, 4); and the length of the minor axis is 10.

trig

The rectangular coordinates of a point are given (-5,-5root3). Find polar coordinates of the point. Express theta in radians.

Elimination Method Help

solve by the elimination method 5x+5y= -7 7x-3y=19 The solution is (___,___) Please help I am lost on how to work and complete this one.

find real and complex 0

Find the real and complex zeros of the following function. Please show all of your work. f(x) = x^3 + 2x^2 - 6x + 8

algebra

Write a slope intercept equation for the line with the slope-1/4 and y-intercept (0,-2)and graph the line.Please show work.

calculus

find the distance d(P_1 & P_1) between points P_1 and P_2. P_1=(4,-5)and P_2=(3,4) please show work

Math

How do I work out:if life expectancy of male is 78.9 and female is 83.6. Life expectancy is % lower than female. What is formula please

maths

How many gold coins are there in a jar of 88 coins,if there are 1/3 as many silver coins as gold coins? The answer is 66, but I cannot work it out,please explain thanks

Algebra HELP

Could someone please check this answer. Given y= x^2, how would the graph of y= x^2-2 differ? A. It shifts 2 units up B. It shifts 2 units down C. It shifts 2 units left D. It shifts 2 units right Answer: B

Spanish

Tu Commands: Please check Put it on! = ponlo or ponte Put it on (negative)! = no te pongas come here! = ven aqui! come here(negative) = no te vengas aqui go!= ve!

Socials please check my answers

pleaes chack my answers: what are the horizontal lines on a map called? my answer= latitudes what are the vertical lines on a map called my answer= longitudes

U.S. History (Please check my answer)

Which American officer assisted Frémont's attacks in northern California? A: John Drake Sloat assisted Frémont's attacks in northern California.

MATH MIDDLE SCHOOL

The slash (/) line represents that the number is a fraction. divide: sqrt45 / sqrt81 = simplify: 7sqrt3 / sqrt5 = Multiply: sqrt7/sqrt8 X sqrt24/sqrt49 = Thanks for the advice regarding how to show square root symbol. Also thank for taking the time to help with these problems...

Cultural Diversity

Would someone please check these two questins and my answers? 1.An example of ___________can be found in the gradual immersion of early Irish immigrants and their descendants across decades as they become part of and contributed to the middle class American mainstream. A. ...

physics

Starting at rest at the edge of a swimming pool, a 72.0-kg athlete swims along the surface of the water and reaches a speed of 1.15 m/s by doing the work Wnc1 = +170 J. Find the nonconservative work, Wnc2 done by the water on the athlete.

math 12

the productivity of a person at work (on a scale of 0-10) is modeled by a cosine function: 5cos (pie/2t) +5, where t is in hours. If the person starts work at t=0, being 8:00 am, at what times is the worker the least productive? a) 12pm B) 10 am and 2pm C) 11 am and 3 pm D) 10...

CALC

the productivity of a person at work (on a scale of 0-10) is modeled by a cosine function: 5cos (pie/2t) +5, where t is in hours. If the person starts work at t=0, being 8:00 am, at what times is the worker the least productive? a) 12pm B) 10 am and 2pm C) 11 am and 3 pm D) 10...

Physics

You pick up a 2.5kg can of paint from the ground and lift it to a height of 1.7m .How much work do you do on the can of paint? You hold the can stationary for half a minute, waiting for a friend on a ladder to take it. How much work do you do during this time?

Math

Mrs.Perry hires a landscaper that charges $15 per hr. The landscaper says the total charge for the work done is $120.00 Write an inequality to show h, the number of hours it took to do the work and solve the inequality.

Physics help me guys

An aricraft carrier has a mass of 8.6*10^7 kg and can cruise at 80 km/h. a) What is the work required to stop it? B) If only half of the work required to stop it is done, what is its final speed in km/h For a) I found 2.123*10^10 which is the right answer but I cant find b i ...

Physics help me plss

An aricraft carrier has a mass of 8.6*10^7 kg and can cruise at 80 km/h. a) What is the work required to stop it? B) If only half of the work required to stop it is done, what is its final speed in km/h For a) I found 2.123*10^10 which is the right answer but I cant find b i ...

programming

I am working on a project called VB Auto Sales I am working in CH 2. I have just about completed the assignment but I am unable to group two separate sections. Assignment Modify the project from the Chapter 1 VB Auto Center case study, replacing the buttons with images in ...

dog behavior

pleaplease check my answer thanks so much Which of the following best describes when extinction occurs A When a CS is repeatedly presented and periodically followed by a US B When a CS is repeatedly presented without the presention of a US C CS and US are presented together D ...

College Chemistry

a 1.00-L solution saturated at 25°C with calcium oxalate (CaC2O4) contains 0.0061 g of CaC2O4. The solubility constant (Ksp) for this salt is [CaC2o4= 128.09 g/mol] a) 6x10^ -3 b) 4.6x10^ -8 c) 2.3x10^ -9 d) 1.5x10^-4 if you could please work it out for me, thank you

algebra

Flying with the wind, a pilot flew 600 mi between two cities in 4 h. The return trip against the wind took 5 h. Find the rate of the plane in calm air and the rate of the wind. Please show work. thanks

Math

How many more of corols stamps are from Norway then from France? * France= 24% England= 22% Italy= 25% Norway= 29%* A. 5 stamps*** B. 24 stamps C. 29 stamps D. 53 stamps please check

Calculus: Limits

++++++++|||||||||Can you please check whether or not my answers are correct and if not, can you fix them for me? Find the sum and state whether it converges or diverges? 1) 0.1 + 0.05 + 0.025 + 0.0125 + ... My answer: converges, | r | < 1 2)6 + 2.4 + 0.96 + ... My answer: ...

Math Inequalities

-9/8x greater than or equal to -1/16 can someone please check my answer? my answer is x greather than or equal to 1/18 is this correct? if not what is the correct answer and what is the correct way to solve this problem..maybe I missed a step or did not do math correctly....

Algebra

Amy has some money in her checking account. If she writes a check for $40.50, her checking account will be overdrawn by $21.50. Find how much money is Amy’s checking account now. My Answer (please correct if wrong): 40.5 - (-21.50) = x

Biology- check my answer (diff one)

Which of the following are true concerning living things? Check all that apply. A)They contain a vital force absent in nonliving things. B)They are composed of molecules that contain carbon-carbon bonds. C)They undergo chemical reactions to use energy they acquire from the ...

Trig

Find secx if sinx = -4/5 and 270 < x < 360. tan^2x+1=sec^2x (-4/5)^2+1=sec^2x 16/25+1=sec^2x 17/25=sec^2x sqrt 17/5 I don't know if it should be positive or negative.

trig

give the exact real number value without using a calculator sin[(cos^-1)(1/4)] sin[(tan^-1)(3/4)+(tan^-1)(12/5)]

Algebra2/trig

Hi, I can't figure out what I'm supposed to do on this problem. Could someone help? Thanks. Find the coefficient of a of the term in the expansion of the binomial. Binomial (x^2+3)^12 Term ax^8

trig

A population of wolves in a country is represented by the equation P(t)= 80(0.98)^t, where t is the number of years since 1998. predict the number in the population in the year.

trig

How do you express in terms of angles less than 90 degrees? sin 120 degrees cos 150 degrees tan 280 degrees

Pre-Calculus-Trig

A road rises 140 feet per horizontal mile. What angle does the road make with the horizontal?

trig

the angle in one regular polygon is to that in another as 3:2 and the number of the sides in first is twice that in second determine the the number of sides of 2 polygons

Trig

The point (-5/12) is on the terminal side of an angle theta in standard position. Find Sin theta, cos theta and tan theta Thank You!

trig

a 30 foot ladder leans against a wall at a 71 degree angle of elevztion find the distance of a ladder's base to the wall

trig

in proving trigonometric identities if sec theta - tan theta sin theta is equal to cos theta. what is the correct answer?

trig

if tan(θ)=√(33) / 4 (√ does not ride over 4) find sin(θ)<0 i would just like to know the steps of how to do it.

Calculus

integral of cscx^(2/3)(cot^3)x i know that cot^2x is csc^2(x)-1, but i just don't understand how to solve the cscx^(2/3), any help? i also know that its trig integrals/substitution...

Trig

A pendulum swings through an angle of 22 degrees each second. If the pendulum is 30 inches long, how far does its tip move each second?

trig identites

since sin2x+√3cos2x=2sin(2x+60) find the general solution for the equation sin2x+√3cosx=0 thank you

Trig

A tire is rotating 600 times per minute. Through how many degrees does a point on the edge of the tire move in 1 minute?

trig

A plane is flying due south at a speed of 192 mph. a wind is blowing in at 53 degrees at 13 mph. what is the bearing of the plane?

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