Trig check my work please?

89,471 results, page 75

Kinematics Physics

Please let me know if someone can help with this subject. I have summer school in physics because I did not get the first semester. I am still not getting it. Alyx Yes, we can help you. Post your questions, show your work, and we'll guide you in the right direction.

Chem Help!

I really need help for my homework on balancing equations please show all the work including the coeffients if needed. I need help with 3 questions, 1) NaN3 -> Na + N2 2) NO2 + O2 -> NO + 03 3) LiOH + CO2 -> Li2CO3 + H2O

SRA MY WORK IS FINISHED

could you please type your answers in for me i'm finished though but since i might not be able to get the apostophe's over the e's like you have said. Sorry for all the confusion thanks and god bless you

statistics

Find the range, standard deviation, and variance for the following sample data: 98, 2, 53, 61, 15, 87, 63, 63, 91, 29, 96, 79, 93, 40, 5, 62 *please show calculations step by step so that i can compare my work. thank you very much. i know that i am off mary Hornbeck

physics

A 15kg model plane flies horizontally at a constant speed of 12.5 m/s and the kinetic energy is 1171J and the potential energy is 3000J what is the new horizontal velocity? Please show work and explain.

Physics please help!!

How much work must be done to accelerate a baton from rest to an angular speed of 7.27 rad/s about its center? Consider the baton to be a uniform rod of length 0.529 m and mass 0.478 kg

Chemistry

In this balanced equation 4Al + 3O2 = 2Al2O3. When 0.54 mole aluminum is reacted in a closed container with 7.80 g oxygen, how many grams of aluminum oxide can form. Please show steps to work out. Thanks

Math: Calculus

Assume that a population size at time t is N(t) and that N(t)=40 x 2^t , t>0. Show that N(t)=40e^t ln2 Can someone please guide me step by step on this question? Im really confused. thanks. I tried to work it out, and this is what I got. N(t)= 40 x 2^t = 40 x ln 2^t = 40 x ...

Physica

(Please put the resulting figures and Thanks)))) a man pushes a box of mass 5 kg in a horizontal direction by 10 N force on the surface through a distance of 5m if the cofficien of kinetic friction is 0.2 the total work done on the box is

math

my daughter is working on 5n + 2n - (3-10N) can someone walk me through how to solve problems like this I have not been in school in over 20yrs. I think you have to work () first? but really do not know HELP please thank you

Science

you push a 75 kg wooden box at a constant speed. the coeffiecent of kinetic friction between the box and the desk is 0.230. You pull the crate a distance of 8.75 m. How much work was done? Explain steps please//

Science

you push a 75 kg wooden box at a constant speed. the coeffiecent of kinetic friction between the box and the desk is 0.230. You pull the crate a distance of 8.75 m. How much work was done? Explain steps please//

History

What are the 10 MOST special events occurred during the 1980’s involving our government? I know I already posted this question. Also the american best history site does not work so please don't give it to me.

math

a 3 cm by 3 cm by 3 cm cube is painted all over its outside and is then cut into 27 smaller cubes. How many of these small cubes have paint on more than one face? please explain how you work it out,thanks

English

I was sick this weekend so the person who sent home my work didn't send me the book and my notes for this english assignment so can u please help me!! Nominative and Objective case 1. the guide showed (we, us) the Yoruba sculpture exhibit. is it us?

Algebra

Please show your work... How do you do this? A taxicab charges $.90 for the first 1/5 mile and $.60 for each additional 1/5 mile. If a customer rides in this cab for m miles (m>1/5) , which of the following functions descibes the cost,c(m), of this tax ride in dollars?

Algebra

Please show your work... How do you do this? A taxicab charges $.90 for the first 1/5 mile and $.60 for each additional 1/5 mile. If a customer rides in this cab for m miles (m>1/5) , which of the following functions descibes the cost,c(m), of this tax ride in dollars?

Math (Geometry)

Give one example of how to solve for a missing side, given 1 side (59 ft) and 1 reference angle (35 degrees) solving with the variable in the numerator. Please help and show as much work as possible!

Calculus

It requires 8 inch pounds of work to stretch a certain spring 2 inches from its rest position. Assuming that the spring follows hooke's law, what is k? Please answer this question. Thanks for your answers in advance.

Math

Find the equation for the exponential function that passes through the pairs of points given. Through (-1,2) and (3,1). I don't know if this is the right way to work this or what the next step is i am just very confused. Please help, thank you! y=Ab^x 2=Ab^1 1=Ab^3 2=(1/b^3)=b...

Chemistry

The Ksp of calcium hydroxide, Ca(OH)2, is 4.68 x 10-6 at 289.15K. Calculate the pH of a saturated solution. Here's my work: 4.68 x 10-6= 4s^3 s= 0.0105 -log(0.0105)= 1.98 14-1.98=12.02 The answer is supposed to be 12.324, but I'm not sure what I'm doing wrong. Is it because it...

Physics

A 100kg object moving at 20 m/s comes to a stop over distance of 40 m. What is the coefficient of dynamic fiction between the object and the ground? I tried to work it out with the formula, but I'm really confused. Please help.

Calculus

Sketch the region in the first quadrant enclosed by y=8/x, y=4x, and y=1/4x. Decide whether to integrate with respect to x or y. Then find the area of the region. Can someone please help me out with showing the work and not giving me some BS speech.

Chemistry

What is the final concentration of a solution if 15-mL of a 2.4-M solution was diluted to 100-mL and this process was repeated two more times? Please help me how to work out the problem. I am not just looking for an answer. I really want to learn.

Language Arts

Hello, I'm having a hard time figuring out what genre The Trouble With Television is, I know it's non-fiction, but what else? Please help and explain why it's the genre you picked. And no, it's not for any school work I just want to know what it is for a writing I'm doing

English

Has anyone read "on the pulse of the morning"? If somebody has, please tell me the poet's visition of america and american dream. Please read over the poem as if you weren't reading a poem -- that is, don't stop and pause at the end of every line. Read it as if it were a story...

math

if sin theta equals 3/5 and theta is second quadrant angle find tan 2 theta.my ans. was 3.442 but is wrong can you correct and show work please. thank you so much.

math

use properties of logarithms to condense the loarithmic expression. write expression as a sinle logarithm whose coefficient is 1. where possible evaulate the expression. 1/8[3 In(x+5)-In x-In(x^2-4)] Please show work

MATH

A ladder is 25 ft long. The ladder needs to reach to a window that is 24 ft above the ground. How far away from the building should the bottom of the ladder be placed? Please show work.

Math ( Polynomial )

If the polynomial, x^4 - 6x^3 + 16x^2 - 25x + 10 is divided by another polynomial x^2 - 2x + k, the remainder comes out to be x + a, find k + a, please work the complete solution instead of giving simply an answer.

math

what is 10^3 ( )9^2 ( )190 = 10. i try to work it out;( 1000 - 190 ) divided by 190 = 10 But when i think about BODMAS then i do not know how to choose the correct operation to make this statment true,can u help me please ,thanks

5th grade math

Name the compatible numbers used to find the estimate. 1. 725/19 estimate:35 2. 3,641/34 estimate:120 Please show me how to work out these problems.

Math 222

Please help me solve these two Rational Expressions? Sorry my addition sign does not work on my keyboard, so that is why I am using the word "plus". 1). g^2-6g-55 __________ g 2). k^3 plus k ___________ k^2 plus k-42

spring physics check work plz

A block (mass 0.5 kg) is hanging from the end of a spring. The spring is observed to stretch by 20 cm in order to come to equilibrium. a) What is the spring constant? F=-kx F=mg=.5(9.8)=4.9 N and x=-.2meters -4.9/-.2meters=24.5 =k should the constant be negative or positive ...

English

Hello. Please check the structures: He and his wife didn't have bank accounts. He or his wife didn't have... Both he and his wife didn't have... Neither he nor his wife had ... THANK YOU FOR HELP.

Math

You went to lunch with your friend and the bill is $19.00 your lunch is $3.00 more than your friends. How much was your friends lunch? f + 3 = 19; $8.00 3f + 2 = 19; $8.00 2f + 3 = 19; $8.00 2f - 3 = 19; $8.00 Mark weighs 74 pounds. together he and his sister weigh 6 pounds ...

English

What do you want to do if you have a lot of money? 1. I want to donate a large sum of money to a society for poor people. To die with money is a shame.] 2. I will go abroad to study English. I like to go to Harvard University, where I will major in economics. After graduating ...

help with hw

convert : 60 cents per doz oranges to cents per orange please show me the work......

rational exponents

express the third root of(8a^3y^5) using rational exponents. Please show your work!

math- surface and volume

If volume increases by 60%, how much does the surface increase by? Please show work.

algebra 2

take the square root of problem square root 64^6 please show all work

algebra[please check]

in questions 1 and 2, write an equation of the line in slope-intercept form. 1. the slope is -4/3; the y-intercept is -2. 2. the slope is 0; the y-intercept is -5. my answers: 1.y=-4/3-2 2. y=-5 ______________________ write an equation of the line that passes through the point...

LAL

CHECK PLEASE are theses ALL complex sentences? 1.i will help you with your homework after you watch the baby. 2. jake stared at me as if he had seen a ghost. 3.you can order whatever you want from the menu. 4.we will be on time unless there is a traffic jam 5.if our teams wins...

Law and Ethics in Med

Please check my answer thanks :) Breach of confidentiality could have which of the following consequences ? 1. Ethical only 2. Legal only 3. Ethical or legal 4. Licensure revocation only I think # 3

Law and Ethics in Med

Please check my answer thanks :) Breach of confidentiality could have which of the following consequences ? 1. Ethical only 2. Legal only 3. Ethical or legal 4. Licensure revocation only I think # 3

Math/Algebra...can you check this please...

f(x)= -4(x+5)^2+3 The vertex is : -5,3 The line of symmetry is x= 3 The maximum/minimum value of f(x)= -5 Is the value of f(-5)=3, a minimum or maximum? Minimum Graphing would open from the bottom going up on the negative side.

Social Studies (Check, Please!)

How did televising the Army-McCarthy hearings in 1954 affect McCarthyism? A: Televising the hearings negatively affected McCarthyism’s popular support, for many saw McCarthyism as bullying.

6 grade math

Please I just need help on the set up teacher wants a guess and check table. Thomas is thinking of a number. If he doubles his number and subtraction 27, the results is 407. Of what number is Thomas thinking?

Present perfect tense

His dad _______ for about ten years. a. has been away from home b. left home c. has gone Ans: a.has been away from home Please help to check, thanks & regards.

english

Can someone please check my work? Which of the following is Not a good idea for choosing a subject for a persuasive speech? Choose an issue important to you. Choose a subject that people disagree on. Choose a subject that you have little personal experience with or facts about...

Managerial Economics

Please check Here gasoline output is mesured in thousands of gallons, fiber output in the thousands of square feet, and crude oil in thousands of barrels. The product's profits per unit output are $.50 per gallon for gasoline and $.75 per square foot for fiber. The the ...

english

Can someone check my work? I am a little confused with adverbs and prepositions.... 1.The portrait fell down. Down is an adverb 2. Someone fell down the steps. Down is a prep. 3.He tripped over the chair. over is a prep. 4. A dried flower arrangement fell over in the wind. ...

Spanish

Can someone please check my work? Change the sentences, using the model as a guide. MOdelo: Paco quiere comprar los calcetines. (Paco quiere comprarlos.) (Paco los quiere comprar.) 1. Piensan cerrar la tienda a las ocho. (Piensan cerrarla a las ocho.) (Piensan la cerrar a las ...

english

We have to rewrite this correcting fragments and run on sentences can someone check my work below the original. Scientists report (1) that creatures living in the deep sea are in danger of starving to death. Millions of undiscovered species live, in the deep sea. Creatures in ...

Anthropology

What do you think are the relative contributions of individual ideas and actions and the sociocultural context in which individuals live to the conditions depicted in Bourgois’ “Office Work and the Crack Alternative”? How would you compare individual ideas and the ...

How dogs learn

please check my answer thanks The laws of learning are important because they A. combine learning theory with other sciences B.make learning more interesting to study C. help scientists predict and control behavior D give mathemathical certainty to behavior I picked C

Applied Dog Behavior

Please check my answer thanks 6. An owner who doles out rewards and punishments at random is likely to create a A. happy working dog. B. dog who pays close attention. C. state of learned helplessness. D. state of aggression. I picked C

Chemistry(Please check answer)

The equilibrium constant for the reaction, H2(g) + I2(g) == 2 HI(g) is 54.9 at 699.0 K (Kelvin). What is the equilibrium constant for 4 HI(g) == 2 H2(g) + 2 I2(g) under the same conditions? Note: the == indicates the equilibrium double arrow Since the second equation is ...

science

So the question is write down three examples of science in your everyday life. This was my answer: sound- compression wave, Baked goods- chemical reaction, Looking at mountains or ocean- earth science Please check my answer and see if this is good thank you

Probability! Check please!

An ice cream shop offers the toppings shown below. How many 4-topping ice cream sundaes can you make? chocolate chips walnuts strawberry sprinkles caramel hot fudge whipped cream gummy bears 11 28 ** 30 35

Algebra 2

For each function, identify the horizontal translation of the parent function, f(x)=x^2. Then graph the function. 19. y=(x-4)^2 I need to figure out how to solve this problem, so steps would be appreciative! PLEASE don't leave websites for me to check out, I guarantee you I've...

Marketing

The goal of target marketers is to develop unique marketing strategies that find unsatisfied customers to whom they can then offer superior value through more attractive marketing mixes. True or False I pick true please check my answer.

Physical Science

Hello! Thanks for checking my question out! ____ 2. Which of the following is NOT a clue that a chemical change has occurred? (1 point) a) change in color b) production of a gas c) formation of a precipitate d) change in shape My Answer: D Could someone please check my answer...

Geography

Which state would likely have the coldest weather, Montana, Georgia, or Oklahoma? Usually, the areas that are farther north have the coldest temperatures. Please check your map of the U.S. to see which of these three states is the farthest north.

dog behavior

Please check my answer thank you very much True or False Traning a dog to respond to the word "Good" as a conditioned reinforcer is accomplished by saying "GOOD" just before prsenting food I said True

physical fitness or sports

Name 10 career options in the fields of physial fitness or sport. I have come of with these: -physical trainer -player -coach -refree I need help. Can someone help me to come up with the other 6. And also please check if I am corect. Thanks for help!!!

Spanish 8th grade-Please check answer

Is this correct the way I answered this-I don't like onion cake so I'm telling them Sorry,but I don't like it. ¿Quieres comer pastel de cebollas conmigo? Lo siento pero no, no me gusta pastel de cebollas. Thank you

Business Finance

I came up with 4.80 per share for the question. A mutual fund has total assets of $57,000,000 and liablities of $8,550,000. If $15,960,000 shares outstanding, what is the net asset value of the fund? Please check my answer.

English

Are these right? IF not please help me understand them thank you. Identify the sentence that most strongly relies on emotional language. It took a lot of work, but we finally got the job done. With hard work and dedication, we got the job done.** We had to move heaven and ...

ALG/TRIG

Lost is an understatement..please help me understand this. Orbits and Distance Johannes Kepler (1571–1630)discovered a relationship between a planet’s distance D from the sun and the time T it takes to orbit the sun. This formula is , where T is in Earth years and ...

English

I need your help to check these sentences on air travel. I really hope you can help me. 1) Enter the airport and look at the departures board to check your flight number and the departure time of your flight. 2)Go to the check-in desk to weigh your luggage. Make sure your ...

SCI HW CHECK

D. Name the joint shown in each picture 1. Elmbow answer - Antecubital fossa. 2. wrist answer - carpal 3. shoulder answer - glenohumeral 4. neck vertebras answer - ????????????????? what is the joint in your neck vertebrae called?????????? can you check to see if im correct

Science HW Check

D. Name the joint shown in each picture 1. Elmbow answer - Antecubital fossa. 2. wrist answer - carpal 3. shoulder answer - glenohumeral 4. neck vertebras answer - ????????????????? what is the joint in your neck vertebrae called?????????? can you check to see if im correct

language arts(CHECK ANSWERS)

please check my answer this is 4 question ! thanks 2.what is the base word in the word APPLICATION? A.placate B.apply(I PICK THIS) C.appliance D.cation 4.which of the following is an independent clause? A.where juan lived B.because juan was brave C.juans favorite adventure D....

How to get quick responses to your math questions

Math is a wide subject, ranging from K to 11, college and university. Then there is algebra, trigonometry, geometry, arithmetic, calculus, number theory, ... etc. Not all teachers answer all math questions (many do). If you would give a little more detail on which branch of ...

english

which of the following options best demonstrates sentence fluency? A. chronic lateness for work can result in a poor rating or even loss of your employment. B. if you are chronically late for work, you will receive a bad rating, furthermore, you could lose your job. C. you ...

math plz check ;-;

Choose the correct graph for the linear equation 2x - 3y = 12. a.y=-3x b.y=3x+4 c.-3y=x-4 d.y=-3x-4 plz check if my answer is correct. My answer is c ^^;

Math

One person can complete a piece of work in 8 days while other person can complete the same work in 4 days(if both works 10 hours per day). how many hours are required to complete the same work if both persons do it combined?

World history; Check:P

I fixed it. I'm ready to be criticize again. Please check? Indo - Europeans Essay How did the religion of the Hebrews differ from many of the religions of their neighbors? Hebrews were monotheists. They prayed to only one god, unlike their neighbors. Their neighbors were ...

math

On a straight line graph, if the line is going this way \ and the co ordinates that I have are (0,4) and (5,0), then what is the gradient? How do I work this out please? The gradient is (y2-y1)/(x2-x1). For your two points, that is (-4)/5 = -4/5

Math

determine vertex, focus and directrix of parabola. then graph the parabola. first equation: y^2 -2x-8=0 second equation: y^2 -4y -12x= 8 please show your work!

Algebra

Please confirm if I did the follow problems correctly: A) Find the sum or difference. (5a – 3b) + (2a + 6b)= 7a + 9b Answer: = 7a + 9b B) Let’s work a few of these (FOIL) 1) (x+2) (x+8) = x 10 Answer: x10 2.) (x+5) (x-7) = x + 11 Answer: x + 11 3.) (2x+4) (2x-3) = 4x + 7 ...

Algrebra

Please confirm if I did the follow problems correctly: A) Find the sum or difference. (5a – 3b) + (2a + 6b)= 7a + 9b Answer: = 7a + 9b B) Let’s work a few of these (FOIL) 1) (x+2) (x+8) = x 10 Answer: x10 2.) (x+5) (x-7) = x + 11 Answer: x + 11 3.) (2x+4) (2x-3) = 4x + 7 ...

Math

Use the intermediate value theorem to show that f(x) has a zero in the given interval. Please show all of your work. f(x) = 3x^3 + 8x^2 - 5x - 11; [-2.8, -2.7] I'm not understanding all this questions...

Math - Exponential equation

Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. 5e^(x log(9)) = 11

math

find the perimeter and area of a right triangle if 1 leg measures 10 ft. and the other leg measures 24ft. show all work please.

PHYSics PLEASE I NEED HELP

wally sees a ball sitting on the floor.he kicks the ball across the floor. does he do any work?if not why?if so what energy change is occurring?

chemistry

jason needs to use 63.5 grams of alcohol that has a denisty of .818 g/ml. How many millilters of the alcohol would jason need?. show work please

Algebra

$9500 is invested part of it at 12% and part of it at 7%. For a certain year the total yield is $960.00. How much was invested at each rate? Please show work

chemistry

For a certain change, value of Delta U is -2.37 kJ. During the change, the system absorbs 650 joules. How much work did the system do? Please help! I get 3.02 but is not correct!!

Alg 1

Find the exact solution for each equation. Find the approximate solution to the nearest tenth. 5 sq rt 2/ sq rt 2 -1 = x / sq rt 2 Please explain in detail how to work this. I am really confused. Thanks

Math Work

Can someone please help me with this? Thanks! :) Directions: Use the Product-to-Sun formulas to write the product as a sun or difference. 4cos pi/3 sin 5pi/6

geometry

use diagram given: m<XWY = 2x+5, m<YWZ = 5x-79, and m<XWZ = 122 degrees. m<YWZ= what? (x) (y) (w) (z) connect x to w, w to z, w to y Does WY bisect ,XWZ? Please show work. Th u

Chemistry

What is delta h for reaction between h2o2 and ethene to give ethylene glycol if HO-OH is 49 kcal/mol and C=C 65 kcal/mol Please show ur work

Chemistry

Calculate the equilibrium concentration of each compound if 0.340 moles of HI are placed in a 5.90 liter container at 520°C. Kc = 0.170 for the reaction at this temperature. soo i tried doing this by setting up an ICE table and finding what x equaled buuuut it didn't work.. ...

MS SUE PLEASE HELP socials

I REALLY DON'T KNOW THE ANSWER TO THIS. ACCORDING TO THE PROTESTANT WORK ETHIC WHICH AFFECTS CANADIAN SOCIETY EVEN TODAY, ONE GAINS VIRTUE BY WORKING HARD. WHY WOULD BUSINESS PEOPLE AGREE WITH THIS IDEA?

chem

supose 1.25 mol of N2 and 50.0g of O2 are moxied together. a)which one is the limiting reactant? b) what is the maximum mass in grams of NO2 that can be produced from the mixture? N2(g) + 2O2(g)=2NO2(g) ***please just show me how to set up the equations I would work the ...

CHEM (HELP PLS)

Suggest the syntheses of putrescine and cadaverine from ethyl bromide I don't think I can use Grignard can I? PLEASE HELP. CH3CH2Br + CH3CH2Mg/EtoEt -> CH3Ch2Ch2Ch2MgBr + NaN3/EtOH -> CH3Ch2Ch2Ch2N=N=N + LiAlH4/H20 CH3Ch2Ch2Ch2NH2? Then what? does this even work?

Math help Please

My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?

Biology Help Please

A cell is lacking in its supply of amino acids. Which of the following will occur? A- mRNA will not be formed because enzymes may not be present. B- The ribosomes will not work properly because there will be no proteins. C- tRNA may not be able to fulfill its job. D- all of ...

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