Trig check my work please?

87,713 results, page 93

trig

if (0,-7) lies on the terminal side of angle theta in standard position, find each value sec(theta) , cot(theta) and sin(theta)

Geometry/trig

A ladder, 17 feet long, leans against a wall at a 49 degree angle to the ground. How far up the wall does the ladder reach?

trig

write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians. answers: sqrt2sin (x+3pi/4), sqrt2sin (x+5pi/4), sqrt2sin (x+pi/4), or sqrt2sin (x+7pi/4) ...?

Algebra 2/Trig

A 5'6" person is standing near a light post that is 18' above the ground. How long is the man's shadow when he is 5' from the base of the light post?

TRIG

Triangle FGH has vertices F(0, 10), G(10, 0), and HR(1, -1). After rotating triangle FGH counterclockwise about the origin 75º, the coordinates of G' to the nearest hundredth are (2.59, ?).

Trig

A plane if flying at 200 mph with a heading of 45 degrees and encounters a wind of 100 mph from the west. What is the resulting velocity and heading?

trig

Find the indicated roots. Write the answer in trigonometric form. Fourth roots of 256(cos 220° + i sin 220°)

trig

how do you find algebraically the measure of the obtuse angle, to the nearest degree, that satisfies the equation 3 sec theta = 5 is it sec theta = 5/3 and then cos -1 (5/8) = 0.4

Math Trig

Let theta be an angle in quad III such that sec theta = -13/5. Find the exact values of cot theta and sin theta? Thank you!!!

7th grade math (probability)

Can you check these, please? Ten cards numbered 1 through 10 are mixed together and then one card is drawn. Find the probability of each event. Write each answer as a fraction, percent, and decimal. 14. P(less than 5) = 4/10 = 2/5 Ans: 2/5, 40%, 0.4 15. P(greater than 3) = 7/...

Science Check

Hi! Can someone check my answers? Thanks!! :) Question 1: A skateboarder (coasting with a constant velocity) jumps straight up. What happens she she lands? Does she come down.... A.) behind the skateboard B.) ahead of the skateboard C.) on the skateboard My answer: B. Question...

S.S.

Have any info on colonial voting what is qualla boundary men only! no women. Please check these sites: (Broken Link Removed) http://en.wikipedia.org/wiki/Qualla_Boundary

Dr.Bob - about your post to a previous question

For that question by Josh on the second page I reviewed what you did and am confused to how you found the g excess reagent (NH3) I posted a response to what I found when I helped Josh with the problem. Could you please take a look at it and check my thinking on the problem ...

English

Let's look at the two comparative sentences. When we compare the degrees of two things and people, we use comparative forms. 1. Emily is younger than Bob. 2. Bob is shorter than Emily. (Will you check all the sentences above? Correct errors, please. What is the part of speech ...

health

True or false the endocrine system only regulates long-term changes in the body True*** False Which endocrine glad(s) are responsible for the changes associated with puberty? A. thymus gland B. reproductive glands*** C. thyroid gland D. pancreas Please check

Science - 1 Question

A small fish in the pacific ocean watches a shark swim by a large rock a few meters away. Which of the following is a reference point in this scenario? A. shark ** B. large rock C. water D. pacific ocean I think the answer is A, please check!

Physical Science

A small fish in the pacific ocean watches a shark swim by a large rock a few meters away. Which of the following is a reference point in this scenario? A. shark ** B. large rock C. water D. pacific ocean I think the answer is A, please check!

Science - 1 Question

A small fish in the pacific ocean watches a shark swim by a large rock a few meters away. Which of the following is a reference point in this scenario? A. shark ** B. large rock C. water D. pacific ocean I think the answer is A, please check!

English-Writing

Many students fear the thought of college. It is not only the transition from high school that intimidates them, but large classrooms, two hour seminars, and worse part, the fear of failure is what keeps them from going. Hence either take shorter hours, gap years, or some even...

Trigonometic

Solving Trigonometic Equations 1)sinx = (4/5) 2) cosx = (-12/13) Solving Trigonometic Equations 1)sinx = (4/5) 2) cosx = (-12/13) What is the question? Solve for x? x= arcsin (4/5) put that in your calculator. Same for the next. For both cases I recognize the sides of well-...

Trig

Find the exact value of: cos315. I have to use the sum angle formula cos(270+45) cos270 cos45 - sin270 sin45 thats all I have. Is the answer at least sqrt 2/2?

trig

I do not understand for my life how to solve this problem. Evaluate the expression without the aid of a calculator. arccos[(-3^1/2)/2) I'm not sure how my teacher did it. I know she said to find which quadrant that cos can be in and graph the triangle to find the angle.

Trig

How do you express sin4x as a trigonometric funcition of x using the identities? I think that you are supposed to start with the sine sum identity and then use the double angle identities for sin2A and cos2A, but after that I get stuck...

trig

An automobile windshield washer 10inches long rotates an angle of 60degrres. If the rubber part of the blade only covers the last 9inches of the wiped, find the area of the windshield cleaned by the wiper.

trig/sig figs

There are 60" in 1', 60' in 1°, and 2π radians in 360°. Convert arc-seconds into radians. KEep 6 significant figures. If someone could help and walk me through this process, it would be soooo appreciated!

trig

A frisbee is thrown within an angular velocity of 360 rpm. If the diameter of the frisbee is 12 inches, how fast does it travel when it hits the ground rolling on the side? round your answer to the nearest mph

Trig

Find all values of theta in the interval 0 <= theta < 360 that satisfy the equation 3cos(2theta)=7cos(theta). Express answers to the nearest ten minutes.

trig

The cross section of a television antenna dish is a parabola. A dish has a receiver that is located at the focus, 4 ft. above the vertex. Find the equation. (which I did) -- x^2 = 8y If the dish is 8 feet wide, how deep is it?

Trig

While fishing on a lake, the fisherman looks up at a cliff. His boat is 23 ft from the base of the cliff, and the angle of elevation is 40 degrees. Find the height of the cliff to the nearest tenth of a foot.

Chemistry revision

all these questions I got wrong on my homework today ...I'm trying to find out why and what the correct answers were .. please help How many grams of solute are required to make a 504 mL solution of copper (I) nitrate with a concentration of 1.3317 M? before I had help and was...

French

Please check if this is right: Demain matin, je vais aller à la ferme. Je n’ai jamais visité une ferme avant. D’abord, je vais faire une randonnée à pied. Ensuite, je vais voir: un cochon, un lapin, un cheval, une vache, un ècureuil, et un oiseau, Je vais aller à la ...

Heeeeeeeelp

Read the following instructions in order to complete this assignment and review the example of how to complete the math required for this assignment: Use the properties of real numbers to simplify the following expressions: 2a(a – 5) + 4(a – 5) 2w – 3 + 3(w – 4) – 5(...

English

Can you please check these sentences, please? Thank you very much! 1) She told me that it was the second time since she hadn't been to the cinema. 2) She asked me how long I had been waiting for her. I think you should try to convince his parents that Bill is a trustworthy and...

Spanish-Please check my answer

Did I answer the question correctly? ¿Qué haces cuando hay un examen grande? Yo estudio cuando hay un examen grande Thank you

Spanish: Please Help (CHECK ANSWERS)

19. Your hermano mayor is A.) younger than you. B.) older than you. *C.) more powerful than you. D.) smarter than you. 20. Your hermana menor is *A.) younger than you. B.) older than you. C.) more powerful than you. D.) smarter than you. Thank You

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 1.10 m/s by doing the work Wnc1 = +165 J. Find the nonconservative work, Wnc2 done by the water on the athlete. Thanx in advance.

physics

if the system is a basket, the basket is tied to a rope and it is stopped by a fixed clamp when it is falling down, I know there is initial KE but how come initial work is negative. Isnt force and displacement are in the same direction, so work should be positive?

physics

2 questions to fill in the blank: 1) in order tocalculate work done, use the ___ of the force which is in the direction of motion. 2) You push against a car stuck in the mud. You will do ___ work unless you are successful in moving the car.

physics

2 questions to fill in the blank: 1) in order tocalculate work done, use the ___ of the force which is in the direction of motion. 2) You push against a car stuck in the mud. You will do ___ work unless you are successful in moving the car.

physics

2 questions to fill in the blank: 1) in order tocalculate work done, use the ___ of the force which is in the direction of motion. 2) You push against a car stuck in the mud. You will do ___ work unless you are successful in moving the car.

physics

A 140 kg sleigh is pulled by one horse at a constant velocity for a distance of 0.90 km on a level snowy surface. The coefficient of kinetic friction between the sleigh runners and the snow is 0.25. what is the work done by force? what is work done by friction?

physics

A block and tackle system of 5 pulleys is used to raise a load of 50kg through a height of 20m the work done against friction is 200J.Calculate the work done by effort,the efficiency of the system and the effort applied.

AP Physics 1

How much work is required to compress a spring, k = 33.3 N/m, from its equilibrium point at x = 0.0 m to x = 5.0 m? I am not sure how to approach a problem like this - what equation do I use? I know work = Force * Distance, but these aren't exactly terms I would use to ...

Trig

Rewrite -25 degrees in radian form. -25 =-25(pi radians/180) =-25pi/180 radians =-5pi/36

Trig

Find the exact value of: sin60-cos60. do I just type sin60-cos60 in my calculator? = .37

trig proof

Help anyone? I need both sides to equal. -2sinxcosx/ 1-sinx-cosx = 1+sinx+cosx

Grade 11 Algebra 2/Trig

Given : f(x) = x^2 and g(x) = 2^x The inverse of g is a function, but the inverse of f is not a function. Explain why the statement is true.

math 30 Trig

A central angle subtends an arc of 35 cm. If the radius of the circle is 12 cm, what is the measure of the central angle?

trig

verify the identity (tanx+cotx) (1) __________ = ______________ (tanx-cotx) (sin^2x-cos^2x)

trig

Find the distance between d(P1,p2) between the points P1 and P2 P1= (-1,-5), P2 = (6, -6) and i also need help with this problem x 8 ____ - ____ x^2-64 64-x^2

Math/Trig

Solve: sin2 x = cos2 x for 0 degrees is less than or equal to x is less than 360 degrees.

trig

Multiply: 5(cos Pi/3 + i sin Pi/3)times 2 (cos Pi/4 + i sin Pi/4) and leave the answer in trigonometric notation.

trig

how high is a tree that casts a 30 ft shadow at the same time a 10 ft pole casts a shadow which is 10 ft long?

trig

what angle in degrees am i if the following is true: sin t > cos t if i were in quadrant three, sin t=cos t

trig

find an expression equivalent to sec theta sin theta cot theta csc theta

trig

Find the reference angle for each given angle: a) 325 degrees b) 14pi/3 c) -190 degrees

trig

City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?

trig

City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?

trig

City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?

Trig

If you are dealt 3 cards from a shuffled deck of 52 cards, find the probability that all 3 cards are picture cards.

trig

GIVEN THE ANGEL ALFA WITH COS ALFA = -1/a. IF ALFA IN QUADRANT TWO, THE VALUE OF SIN ALFA IS....

trig

City A is 300kilometer due east of city B. city C is 200kilometer on a bearing of 123degree from city B.how far is it from C to A

Trig

Given ∆ABC. If side a is twice as long as side b, is <A necessarily twice as large as <B? Why?

Trig

What is the total number of solutions for the equation 3 tan^2 A + tan A – 2 = 0 in the interval. 0 ≤ A ≤ π?

trig

a plane is 50000 ft in the air and 30000 ft from an airport find the angle of depression from the plane to the airport

Pre-Calc/Trig...

Am i correct? The graph of y=3x^2-4x+2 opens downwards. FALSE The graph of y=2x^2-4x+2 has a y-intercept of (0,1). FALSE

Trig

A pendulum swinging through a central angle of Ts completes an arc of length 6.4 cm. What is the length of the pendulum?

Algebra

Please help! |x+1|-3 > 8 Solve the absolute value inequalities. Please, please , PLEASE! and thanks.

trig

solve log(x +9) - log x=3

trig

sec(sq) X - Sec(sq) X * Sin (sq) X = 1

trig

simplify cos(30+x)+cos(30-x)

Trig

cot (tan + cot) = ?

Trig

Solve Log[8](log[5]x)=0

trig

sin [sin -1 (7/25) - cos -1 (-8/17)]

trig

tan^2x/1 + tan^2x = sin ^2 x

trig

cot^2/1 + cot^2 = cos^2

Trig/precalc

Cos[x + (7 Pi)/4] + Cos[x - (7 Pi)/4] = 1

Trig

cos[(tan^-1(3/4))+(cos^-1(9/41))]

Trig

Tan^2= csc^2 tan^2 -1

dog behavior

please check my answer thanks Latent learning becomes evident when A. a puppy grows up B. the animal is motivated to perform C a dog has failed with the trial-and-error method D. a dog experiences social facilitation I picked A because latent learning occurs in the absence of ...

math

Someone please check my answers 1.In the number 854,263,189 what number tells the number of millions. 4 2.Write 4x4x4x4x4 as a power of 4 4^5 3.write 684 in expanded form 600+80+4 4.Turner agrees to buy a boat for $2,800 down and $129 a month for 48 months. What is the total ...

Assistance Dogs

Please check my answer thanks :) 10. Guide dogs are usually at least medium-sized because they A. need to be able to reach up to counters and table tops. B. are required to pull wheelchairs during training. C. need to be able to see above obstacles. D. need to be strong enough...

English

I urgently need to include the following details in a letter. Ms. Sue, could you please check them? 1) As I'm planning all the details for our preliminary meeting I urgently need to know when you are arriving here and if you need any help to arrange your transfer from the ...

science(check answers)

please check my answers 1. B 2. A 3. D 4. A 1.B 2.A 3.D 4.A 1.All renewable resources are inexhaustible A.true B.false 2.Some fuels,called biofuels,are made from plants.They are used in cars and other machines biofuels would fit best in which of the following categories A. ...

math

10 men can do a piece of work in 10 days.how many days can 100 men take to do the same amount of work?

English

Success comes from hard work. (I will say “NO” to the statement above) Success comes from smart work.

Math

Susan was awake for 2/3 of an entire day. If she spent 3/7 of her time awake at work, what fraction of the day was she at work?

Math

3. A can do a piece of work in 6 days. B is 50% more efficient. The number of days it take B to do work is A. 9 B. 3 C. 2 D. 4 Is the answer 4? If so, how did you get your answer?

physics

!.How does work affect power with time constant? 2.how does the weight of the stair-climber affect work and power?

Chemistry

Please help me verify: The following reactions are involved in the formation of acid rain. Use oxidation numbers to identify which of these reactions are REDOX reactions. a. 2SO2(g) + O2(g) �� 2SO2(g) -2 -2 0 -2 -2 No change - not REDOX reacton b. 3NO2(g) + H2O(l...

Quick English check

Please check these sentences and correct me if I'm wrong, thank you! 1. A 'MYRIAD' of people are interested in auditioning for the reality tv show, but only a handful will be afforded the opprutunity. 2. The villain wants the world to tremble at the 'MERE' of the experiment, ...

Social Studies (Check Please!)

Inflation Primarily differs from deflation in that 1 Inflation tracks changing prices but deflation does not 2 inflation relates to rising rather than falling prices 3 Inflation happens only when the money supply is too small 4 inflation occurs much less often than deflation ...

programming

I had to create a c code that gets a number, returns how many digits it has,the digits sum, the digits product, to check if the digits sum is equal to product if yes return "1" else return 0, and in the end write a program the prints the first 20 numbers that the sum of their ...

Economics - Please Help

Suppose the economy has been producing its potential, but it is now experiencing a recession. Which of the following is a discretionary fiscal policy that would bring the economy closer to its potential output? Check all that apply. 1) A tax cut 2) A tax increase 3) The sale ...

English Lit-Please check

Does an analogy ever have "as" in it. I'm just trying to figure out figures of speech and I know Writeteacher told me "as" would be a simile but in the following: My brother has grown a great deal in the last year. He is almost as tall as I am now. This can't be a simile ...

biology

what be the greatest visual magnification ahieved with normal kind microscopes like compound type? that be 1000x. but how you can determine this for any microscope? what be the depth of field? and what power be depth of field the smallest? what power an object be the biggest? ...

Social Studies Please Check Answer

Why did the US most likely offer economic aid to Russia and Eastern Europe during the 1990s? A) to encourage them to break ways from the Soviet Union B) to politically dominate new governments in the region C) to help stable democratic governments emerge in the region***** D) ...

physics

A horizontal force of magnitude F = 110 N is used to push a box of mass m = 6 kg from rest a distance d = 16 m up a frictionless incline with a slope q = 28°. a) How much work is done by the force on the box? b) How much work is done on the box by the gravitational force ...

Chemistry - DrBob222

CH3OH + MnO4- ----> Mn2+ + CH2O Earlier I posted this question and then realized that CH3OH didn't have a charge. It changed my work because the oxidation state changed. Can you check if what I fixed is correct? CH3OH- + MnO4- ----> Mn2+ + CH2O 1e-/C 5e-/Mn x 5 x 1 = 5...

Biology

I need to find a way to measure protein concentration. It's for part of my infection and immunity lab report. We've done about radial immunodiffusion calculating the concentration of bovine serum albumin in unknown samples, and the last question is: What other techniques could...

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