Trig check my work please?

88,665 results, page 91

math

Write the slope-intercept equation for the line with slope -2/3 and y-intercept (0, 3) and graph the line. Please show all of your work. (

Math

Allison measures 1 5/16 teaspoons of salt. She measures another 1 11/16 teaspoons of salt. How many tablespoons does she measure altogether? Please show work

Math

Please help me with this home work Triangle ABC ~ Triangle ADE AD=5; DB=3.5; BC=5.1; AE=6; EC=x What is the length of AB? What is the length of DE? Write an expression that represents AC? What is the length of EC? What is the length of AC? Thank you

Physics - Please Check Answers ASAP

Please check these over and see if any are incorrect? 1. The units of speed are: a) m/s ---> my answer b) m/s^2 and direction c) N d) m/s and direction 2. Which of Newton's Laws says you cannot touch anything without being touched? a) 4th b) 2nd c) 1st d) 3rd ---> my ...

(Arts/Theater)(Stuck on what to do) Help please?

My improvisation teacher today told us to bring something with us to class where you can do a physical action with it. This action must be something you can do in barely 10 minutes and must have an actual ending to that action. We're doing this assignment tomorrow and I have ...

physics

The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the force doing the work in this problem is the tension in the cable. A rescue helicopter lifts a 89.2-kg person straight up by means of a cable. The person has an upward acceleration ...

Calculus (Help)

Can you please help me with this problem? I asked earlier, but nobody was able to help me... I've been working on it for about an hour now. A widget factory has fixed costs of 35 billion dollars and variable costs of 781 million dollars per widget. The revenue (in $ billions) ...

Science

Acetylene gas c2h2 reaction cac2+2h2o. C2h2+Ca(oh)2 how many moles of cac2 needed to prepare 10.0 g c2h2 please show work and answer soon final question on big test review

Physics

A rock is thrown straight up at 22.0 m/s from a roof of a 30.0 m tall building. After rising, the rock falls on the street below. Ignoring air resistance, how much time is the rock in the air? Show the work please :)

Calculus, Riemann Sums

Measurements of a lake’s width were taken at 15-foot intervals, as shown: x= 0 15 30 45 60 75 90 105 120 f(x)= 0 15 18 20 19 23 24 22 12 Estimate integral (0,120) f(x) dx with n = 4, using Midpoint approximation. For this question, I ended up with 7200 but compared to the ...

Math (Riemann Sums)

Measurements of a lake’s width were taken at 15-foot intervals, as shown: x= 0 15 30 45 60 75 90 105 120 f(x)= 0 15 18 20 19 23 24 22 12 Estimate integral (0,120) f(x) dx with n = 4, using Midpoint approximation. For this question, I ended up with 7200 but compared to the ...

algebra

a bank has 2 checking plans. the anywhere plan charges 15 cents per check. accucheck costs 1.65 a mont, plus 4 cents per check. what # of checks will accucheck plan cost less than anywhere plan?

trig

Both circles have the same center and radius of the larger cirlce is R. if the radius of the msaller circle is 3 units less than R, whic of the following represent the area of the shaded region?

Trig

There is a right triangle with a left side of six, a bottom side of 10, and a hypoteneuse 11.66. How do you find the other two angles? I tried the inverse of tangent 6/11.66, but my calculator said that's invalid. What do you properly do?

Math/Trig

Given A=56degrees, C=61degrees, and b=10.5, solve triangle ABC. If no triangle exists, explain why. If two solutions exist, write both. Round your answer to the nearest tenth

Math/Trig

Given A=56degrees, C=61degrees, and b=10.5, solve triangle ABC. If no triangle exists, explain why. If two solutions exist, write both. Round your answer to the nearest tenth

trig

A tree casts a shadow 50 yards long when the angle of the sun (measured from the horizon) is 30 degree. How tall is the tree in feet? (A) 150p3 (B) 50p3 (C) 150 (D) 75p3 (E) None of the above.

trig

Consider the angle in standard position whose measure is radians. The terminal side of this angle is in the third quadrant and lies on the line given by y=10x. Find sin and cos.

trig

fidn all values of tehta in [0, 360) that satisfy the equation. √(3)tan(θ/2)=-1 I have four choices 300, 330, 150 , 120 and i got 120

trig

Two ships leave port at the same time and travel straight line distances, the first at 30 km/h and the second at 10 km/h. Two hours later they are 50 km apart. What is the angle between their courses?

math/algebra

Simplify: 3/4/4/5 answer choices are: a) 3/5 b) 5/3 C) 15/16 d)16/15 How do I go about solving this fraction, please show me how to work this. 3/4 divided by 4/5 1. Invert the second fraction. 3/4 / 5/4 2. Multiply the numerators and denominators. What answer do you get? 15/16...

Math 116 Axia

rewrite using multiplication -70/(23) Do not simplify, Type a fraction I can multiply and divide but I am not sure how to work the problem. can someone do a problem with the same type of values so I can see the steps involved? Please and thank you! possible sample -50/(13)

Chemistry

a piston performs work of 210. L atm on the surroundings, while the cylinder in which it is placed expands from 10. L to 25L. at the same time, 45J of heat is transferred from the surroundings to the system. Against what pressure was the piston working? Please Explain!

Chemistry

a piston performs work of 210. L atm on the surroundings, while the cylinder in which it is placed expands from 10. L to 25L. at the same time, 45J of heat is transferred from the surroundings to the system. Against what pressure was the piston working? Please Explain!

Algebra

A manufacture of CD player has monthly fixed cost of 8600 and variable cost of 55 per unit for one particular model. The company sells this model to dealers for 115 each. Which is their function for the profit. Please show all work.

Math

The distance s in feet that a body falls in t seconds is given by the formula s=16t^2. If a body has been falling for 5 seconds, how far will it fall during the 6th second? Please show work/explain A. 16 ft. B. 80 ft. C. 176 ft. D. 400 ft. E. 576 ft.

Calculus AB

Please help I'm stuck on this problem for the past hour. Define f(x)= { Ln lx-1l }/x A) show that f(c) is continuous at x=2 B)Where on the interval [-2,2] is f discontinuous? Show the work that leads to your conclusion. C) classify the discontinuities in part b) as removable ...

algebra

The following stem-and-leaf plot values show the average monthly sales commissions (in hundreds of dollars)for a major co rporation's nationwide sales group: 27,27,29,33,38,44,44,44,46,50,58. What is the mean of the distribution? Please show as much work as possible. Thank You.

algebra

Help Fast PLEASE!! check for corrections on my problems 1.Rewrte the following in simplified radical form, Assume all variables represents positive real numbers: square root 48y^10= 4y^5 square root 3 2.Rationalize the denomintor and simplify: square root33/square root 21= ...

english

correct any errors. Please check my answers. Question: 12) Every player on the team, must give their best effort in the championship game. Every player on the team, must give his or her best effort in the championship game. Question: 13) Each person in the seminar must submit ...

AP World History Please Help Me Mrs.Sue

Compare the political structure of Hellenistic Greece to that of the Greek world before 400 B.C.E. What was the function of philosophy in Greek culture? What, according to the authors, were the principles of Greek culture? Define a polis. How did the polis change between 800 ...

Biology

I know it is a bit long and maybe difficult, please help me to answer these.. 1) I have pET28a with insert inside. Insert is 400 bp in size. I want to check my insert with both single digestion and double digestion. I already isolated my plasmid but i do not know the next step...

math check

Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is left-handed. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are left-handed. Incorrect: 9.936 (b) Compute ...

physics

A 1.5 kg snowball is fired from a cliff 12.5m high with an inital velocity of 14 m/s directed 41 degrees above the horizontal. a) how much work is done on the snowball by the gravitaitonal force during its flight to the flat ground below the cliff? b) what is the change in the...

physics

Four point charges are located at the corners of a square with sides of length a. Two of the charges are +q, and two are -q. Find the magnitude and direction of the net electric force exerted on a charge +Q, located at the center of the square, for each of the following ...

Thermochemistry

Path A A sample of gas in a cylinder of volume 3.96 L at 327 K and 3.28 atm expands to 7.34 L by two different pathways. Path A is an isothermal, reversible expansion. Calculate the work for Path A. Answer in units of J. Path B Path B has two steps. In the first step, the gas ...

General Chemistry

Given 115 grams of Na2SO4 find: a. the # of moles in sodium sulfate b. the # of moles in sodium ions Please explain all work and fully explain where each # came from. Thanks.

MATH HELP

Will someone please explain and show how to work this one: How many different whole numbers can be made with the digits 5, 7, 8? For this problem, each different whole number may have 1, 2, or 3 digits and a digit may be repeated.

real-life step function

So if I wanted to do a step-function graph for gas prices, how would that work? I'm a little confused. Could someone give me examples please? That would be so helpful (: Thanks!

math

Find 10% of $500 and 10% of $300. Since 6% is a little more than half of 10%, what is half of 10% of 500? Add this with 10% of 30, since 8% is close to 10%.Does your answer make sense. Please show work so i can understand

Algebra

Solve the inequality 1. m - 7 < 6 2. x + 4.5 more than or equal to 5.5 3.p + 12 > 9 4. Translate the following statement into an inequality: Five less than a number is at least nine. x - 5 more than or equal to 9 Show me how you did the work please?

biochem

The pKa of butanoic acid is 4.87. A student mixes 120 mL of 0.45 M butanoic acid with 50 mL of 0.3 M NaOH and adds water to give a final volume of 1 L. What is the pH of the final solution? Please show you work.

MATH

bernadette bought two pieces of ribbion. One piece is 6 1/4 feet long, and the other is 11 1/2 feet long. Find the total lenght of the ribbion please help and SHOW YOUR WORK thanks :D

Physics

A paper ball is dropped from a height of 5 meters above the ground. It hits the ground traveling with a speed of 2 m/s. How much work did air resistance do on the paper ball? I don't know how to start this. PLease help

math-please help,need quickly

find the slant asymptote of the graphof the rational function. 1.f(x)=x^2-x-2/x-7 y=? 2. determine the symmetry of the graph of f. a. the graph has y-axis symmetry f(-x)=f(x) b. the graph has orgin symmetry f(-x)= -f(x) c. the graph has both y-axs and orgin symmetry d. the ...

Pre-Calc

Could somebody please check this for me? Dtermine whether the graph of each equation is symmetric with respect to the origin, the x-axis, the y-axis, and the line y=x or the line y=-x. I came up with the line being symmetric to the x-axis, the y-axis, and the line y=x. I'm not...

English

Can you please check these sentences? Thank you. When I was "little" (young is better) could play the guitar quite well. Can you say "yesterday evening" in British English (instead of last evening?) He insisted that he hedn't broken the vase. He insisted on not having broken ...

Physics 221

A 20g particle is moving to the left at 30 m/s. How much net work must be done on the particle to cause it to move to the right at 30 m/s. The answer is 0J of work, and i understand the method of equations, but i don't understand the logic behind it. Thanks for any help.

Physics

A 1.0 × 10−6 C test charge is 40.0cm from a 3.2 × 10−3 C charged sphere. How much work was required to move it there from a point 1.0 × 102 cm away from the sphere? what formula(s) should be used to calculate work...?

eng 122

The modification of text with the intent of changing phrases, changing words, or interspacing the student's work into the plagiarized work is plagiarism. (Points : 1) True False answer true

Science 8th grade/report please check

Please check this for me and let me know what you think. I need to write at least one paragraph on this... A 52 year old man suffers a pulmonary embolism that orignated as a blood clot in his right leg. Describe this condition and how it develops. Trace the pathway of th blood...

7 th grade math

You check 20 batteries.Fourteen do not have a charge. Part a. What is the experimental probability that the next battery you check does not have a charge? Part B. Select an answer from each box to make the statement true If 300,100,240 batteries are tested I would expect 30,...

Math

1. Write the equation rule and find the twentieth term in the sequence: 1/2,2/3, 3/4, 4/5... My answer: The rule is x/x+1. The twentieth term in the sequence is 20/21. Please check my answer and tell me if it's correct or incorrect. I'm confused. Thanks.

Math

Molly has 15 marbles in a jar. What is the ratio of black to white marbles? There are 8 black marbles and 7 white marbles. A. 7:8 B. 7:15 C. 8:7 D. 8:15 My answer would be C Can you please double check my answer and tell me if I am right or wrong.

French Check Ms. Sue

Please check this. Thank you! 1. France is a country in Asia. true false*** 2. There are many countries in Africa where French is one of the principal languages of the people. true false 3. Québec, in Canada, is a French speaking part of Canada. true*** false 4. The French ...

math check please

region Population land area 1000mi^2 Asia 4,028,000,000 17,400 North America 305,000,000 9,400 1. Compare the populations per square mile in asia to the population per square mile in north america A: Asia 231.49mi^2 North America 32.45mi.^2 could some one please let me know if...

PLEASE CHECK

1.)Solve for y in the following system of equations. x + 4y = -38 -x - 6y = 58 My answer 1.) -10 2.) 6 3.) 12 4.) 10 2.)Solve for y in the following system of equations. x - 10y = -50 -4x + 6y = -4 1.) -6 2.)3 3.)-3 My answer4.)6

physics

A load of 500N is raised 0.2m by a machine in which an effort of 150N moves 1m.What is a) the work done on the load b)the work done by the effort c)the efficiency

Math

For 31 hours of work you are paid $ 361.15. How much would you receive for 33 hours of work? (a) $ 372.80 (b) $ 384.45 (c) $ 42.65 (d) $ 11.65 (e) $ 384.54

PHYSICAL

A SIMPLE MACHINE PRODUCE 25 JOULES, WHAT IS THE OUTPUT WORK FOR EVERY 50 JOULES OF INPUT WORK. WHAT IS THE EFFICIENCY OF THIS MACHINE?

Trig

Special Angles And their Measures Fill out the Table Below: in degrees Sin Cos Tan 0 30 45 60 90 120 135 150 180 210 225 240 270 300 315 330

trig

Matt has a large family when looking at the dates of their birthdays, he noticed that every prime day had at least one birthday. this was also true for perfect squares cubes and multiples of 3,5,7, and 11. what days (1 to 31) are not represented

Calculus Help and Check

1)Find the most general antiderivative of the function. (Check your answer by differentiation. Use C for the constant of the antiderivative. Remember to use ln |u| where appropriate.) f(x) = (1/5)−(3/x) -----> (x/5)-3lnx+C 2)Find f. f ''(x) = 4 + 6x + 36x^2, f(0...

Trig

Simplify:::: sin (teta) cot (teta) = cos (teta)

trig

Find theta such as tan(theta) = cot(theta+45). Thanks

trig

tan theta= -4/3 and sec theta<0 find sin (theta = pi/6)

trig

find the exact value of sin(u+v) given that sin u=3/5 and sin v= 15/17

trig

If sin(θ) = 8/17 and θ terminates in QI, find cos(θ)

Trig

Cosine theta=8/17 and 270 degrees is < theta, and theta is< 360

Check answers please? (grammar)

Can someone please check my answers to the sentences? I want to see if I properly understand this stuff before turning it in for credit :) "Identify the direct objects and indirect objects in the following sentences. Not all sentences contain indirect objects." 1. Last summer...

physics

You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 294 N for 7.6 s, during which time the refrigerator moves a distance of 3.2 m at constant velocity. (a) What is the total work (by all forces) done on the refrigerator? (b) What is...

trig Elev. & Depress part ii

You are 55ft from a tree. The angle of elevation from your eyes, which are 4.5 ft off the ground,to the top of the tree is 61 degrees. To the nearest foot, how tall is the tree?

behavior problems(dogs)

please check my answer thanks Ideally, when working on a behavior problem, you'll show the owners ways to A. reorganize the environment so the dog has fewer chances to misbehave. B. discipline a dog correctly and not spoil him. C. teach some commands that will be useful if ...

3rd grade phonics

Can you please check these? Thanks. Vowel Pairs: freezing rain sleet beat gray streets blue play Kay raisin feel easy Vowel Digraphs: looked said caught headline said school because heavy weather good sleigh said could neighbor bread instead

Geometry-Please check my answers

I have two questions: If a parallelogram is a rhombus, then the diagonals are congruent- I don't think so in all cases-they can bisect each other and are perpendicular, correct but not necessarily congruent so this should be false? Secondly, A kite is a quadrilateral that has ...

Physics(Please check)

A uniform plank of length 5.0 m and weight 225 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 404 N walk on the overhanging part of the plank before it just begins to ...

Physics

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...

special ed

I need to make lesson plans for students with mental retardation. Can you please tell me what you think of my ideas. For Pre-K work on gross motor skills, play simon says, use songs that make the child use their motor skills (if you're happy and you know it, clap your hands, ...

Math

You work at a grocery store. You hourly rate is greater after 6:00p.m. than it is during the day. One week you work 20 daytime hours and 20 evening hours and earn $280. Another week you work 30 daytime hours and 12 evening hours and earn a total of $276. What is your daytime ...

Urgent Math please check

Very Important I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they are right, but just need a fresh set of eyes. I know I've been sending alot, but I really need them to be ...

French

Please check these sentences for grammar. 1. Adorez-vous faire les magasins? 2. Est-ce que tu préféres lire à la bibliotheque ou écouter de la musique? 3. Est-ce tu ne préféres pas la pomme avec le petit dejeuner? 4. Est-ce tu n'aime pas les pommes?

Math

The ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is 12 meters, the height of the loading dock, BC, is 4 meters. What is the height of the loading dock DE? A. 12m B. 8m C. 9m D. 15m My answer is 9 is ...

math

The ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is 12 meters, the height of the loading dock, BC, is 4 meters. What is the height of the loading dock DE? A. 12m B. 8m C. 9m D. 15m My best answer is C @...

Health care

Please check my answer thanks :) Medicare and Medicaid financial issues put constraints on .... 1., physician services 2. critical care centers 3. public hospitals 4. outpatient services now here is the problem I think it is all of them but I can only pick one answer so I ...

Health insurance

Please check my answer thanks :) Ifan enrollee uses more services than originally assumed per the PPPM calculation, the the plan would 1. show a pfofit for that period 2. show a loss of that period 3. need a contract renegotiation 4. require that the enrollee be dropped from ...

STATISTICS

A statistics practitioner formulated the following hypothesis: H0 : ¦Ì = 200 against H1 : ¦Ì < 200 and learned that x = 190 n = 9 and ¦Ò = 50. The p-value of the test is (1) 0.6 (2) 0.2743 (3) 0.7743 (4) −0.2743 (5) Cannot be found with information given My ...

Spanish-8th Grade-Please check

I have a question about the owrd cubiertos in Spanish. Does ths word include la servillete el cuchillo el vaso la cuchara el tendor OR is it just like the plate and spoon, fork, knife and NOT the vaso or servillete(napkin)? The word and transaltion is confusing me Thank you

social studies

Please check:( these came from a word bank) wanted the united states to have a port on the gulf of mexico: Thomas Jefferson needed money to fight a war: William Clark? leaders of the Corps of Discovery: Meriwether Lewis, William Clark, Thomas Jefferson

English

1. The taxi fare was too high. 2. The taxi fare was too expensive. (Which one is right in this case?) 3. After I went through the entry procedure, I could go anywhere in the city. (Is this sentence right? Do you have other expressions?) 4. Later I had to hand that one to an ...

English

For a project im writing about 1950's food and the food that was unique to that time. But, in my report i also have to compare a literary work to the information i find on 1950's food. my teacher said the best work would be like a poem, song, article about your specific topic(...

Math -Trig Please help!

At one time, Maple Leaf Village (which no longer exists) had North America’s largest Ferris wheel. The Ferris wheel had a diameter of 56 m, and one revolution took 2.5 min to complete. Riders could see Niagara Falls if they were higher than 50 m above the ground. Sketch ...

Math-CHECK ANSWERS

hi please check these math answers! 13. If 4 out of 20 people like red jelly beans, what percent of the people do not like red jelly beans? A.5% B.20% C.80%(I PICK THIS) D.90% 14. Sally is photocopying a picture. The original picture was 4 inches wide and 6 inches long. The ...

DrRuss/bobpursley/drwls please help!!!

Can you please clarify your response to my post Wednesday April 4th at 8:53pm and 8:54pm. Thanks for all of your help!!! pleasde repost it. Yes, repost it. Go to it, copy, and paste it here. Thanks. A vertical spring with a spring constant of 450 N/m is mounted on the floor. ...

math

Automobiles and small trucks make up 84% of the travel to and from work in the US. What fraction represents all other means of travel to and from work in the US? How would I set this up, I am guessing the answer is 16% but I have no clue how to get the answer if it is right. ...

Physics

A football player pushes a tackling dummy forwards at a constant speed for 111m using 7150J of energy. b)What is the frictional force the dummy exerts? c)What work is done by friction as the dummy is slid along the field for 11m? omg please help I am so lost

english

In the following passage, a linking device has been omitted. Choose the word that would make the passage coherent: __ this technique won’t work for everyone, it helps many people get a good cache of ideas to draw on. 1. However 2. Although Please help with the question I ...

computers

I have this problem with my PC The sound won't function properly. I've checked the volume controls and audio properties, etc, but they seem to be working fine. It's just that the sound won't come out. I've also tried installing a new set of speakers, yet they don't work either...

chemistry

i don't know how to solve this. looked through all my notes but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand the theory behind this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g...

chem

i don't know how to solve this. looked through all my notes but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand the theory behind this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g...

business english

Avoid camouflaged words 1. it was my duty to make a determination of any damages. 2. Harold made a recommendation that we fire Mr. Schultz. 3. we will ask him to bring about a change in his work routine. 4. this new equipment will result in a savings in maintenance. 5. will ...

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