Trig check my work please?

88,597 results, page 74

Math

can you please check my answers evaluate (-5a)^2 and -5a^2 when a =5 625 for both 1-12.64=-11.64 (-14)/(-7)=2 using multiplying by 1to find an expression equvialnt to 18/19 with a denomanator of 171z?dont simplfy type a fraction one day the temperture dropped from -4 degree f ...

Math - Inverse Functions

Find the inverses of the following functions. y = 3(x - 1)^2, x >= 1 Work: x = 3(y - 1)^2 x = 3(y - 1)(y - 1) x = 3(y^2 - y - y + 1) x = 3y^2 - 6y + 3 And now what do I do!? Please explain and show me how to solve this inverse function! ... Thank you

Please help :( I am so confused....

This is so confusing :( Given U = {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}, A = {12, 14, 16, 18, 20}, and B = {11, 13, 14, 15, 18, 19, 20}. Find A′ ∩ B′. Do not skip to the answer. Show your work, finding A’, then B’ then find their intersection.

Math

Lee has 35 dimes and quarters that total $5.00. Solve the system of equations to find how many dimes and how many quarters he has. d+q=35 0.1d+0.25q=5 Please show your work thanks

Math

Mr.Mike wants to leave the waitress a 12% tip. Estimate the tip if he should leave if the family's bill is $32.46. Please show ALL WORK.......THANK YOU!!!!! :)

Calculus

It took 1800 J of work to stretch a spring from its natural length of 2m to a length of 5m. Find the spring's force constant. Please help. Thanks in advance.

Pre-Calc

Evaluate the expression without using a calculator(show work please)? (sin pi/4 cos pi/6 - sin pi/6 cos pi/4) the answer is 1/4(2-ã3)

Algebra

Use the Quadratic equation to determine the last day that cowboy hats will be sold. cowboy hats = -0.4x^2 + 20x + 10 Please help me work through this.

Algebra

Solve. Please show all of your work. The sum of twice a number and 4 less than the number is the same as the difference between -32 and the number. What is the number?

Science

If on earth you weigh 420 newtons, and the gravitational pull on the moon is 1/6 of what it is on earth. What would be your weight on the moon?? Please show work Thanks!! :)

Precalculus

Give an example of an increasing function whose domain is the interval [0,1]but whose range does not equal the interval[f(0),f(1)] please show me the work

Math

Matt puts 3 1/2 quarts of lemonade in the pitcher. He adds another 1/2 quarts. How many pints of lemonade does he have total? PLEASE SHOW WORK! :[

Math

Let Alpha and Beta be the zeros of the cubic polynomial x^3 + ax^2 + bx + c satisfying the relation Alpha * Beta = 0. Prove that : c^2 + ac + b + 1 = 0. Please work the complete solution.

Math

Let Alpha and Beta be the zeros of the cubic polynomial x^3 + ax^2 + bx + c satisfying the relation Alpha * Beta = 0. Prove that : c^2 + ac + b + 1 = 0. Please work the complete solution.

Math

Let Alpha and Beta be the zeros of the cubic polynomial x^3 + ax^2 + bx + c satisfying the relation Alpha * Beta -1 = 0. Prove that : c^2 + ac + b + 1 = 0. Please work the complete solution

math

If unequal quantities are subtracted from equal quantities, the remainders are unequal in the opposite order. Since 25=25 and 5>3, then 20<22. If x=y and a>d, then x-a<y-d. Please show work and explain.

algebra 2

samara solved 1/5 divided by 10 by using a related multiplication expression. Which multiplication expression did she solve? Please show work and help answer thanks

Algebra please can you ck my work

Evaluate the given expressions (to two decimal places). log 1.69 =123 log 2^512 = .09 log 2^1 = 0 log o.o46 =1.34 Thank you

math

15. The sum of five unequal whole numbers is 90. The second largest of these five numbers can be at most A.19 B.41 C.43 D.89 please explain and show work.

Algebra 2

Find the equation for the parabola with the given vertex that passes through the given points. vertex (-4,2) point (-3,0) please show work!!!

Algebra 2

simplify each expression. rationalize all denominators. assume that all variables are positive (1-sqrt(3x))/(sqrt(6x)) Please show work!!!!

Surface Area and Volume

Hi I am confused on how to get the correct answer. The question states: What is the surface area of the sphere if the radius is 16 cm? Please show your work. Thank you!

physics- pressure/gas

Suppose 2500 J of heat are added to 4.1 mol of argon gas at a constant pressure of 120 kPa. (Assume that the argon can be treated as an ideal monatomic gas.) Find the change in internal energy. I started using U = N (3/2 kB T). But I have too many unknowns. The only other ...

Science

An adequate supply of fuelwood helps to pevent disease by allowing water to be boiled to ______________ it. Please check your assigned reading and post your answer. We'll be glad to help you when we see your thoughts about this subject. help? Come on, Mack. How does boiling ...

Health info

please check my answer :) Dr Bob treats Tommy who's DOB is 8/1/97 on June 1,2000 The statue of limitions for medical malpractice in the state is question is three years The age of adulthood is 18 in this state When can Tommy;s records be destroyed I said August 1, 2015

Chemistry check Please

The question is: Find the following quantities the volume, in liters, of 835 g SO3 at STP My answer is: 1 mol of SO3=80g 835g/80g = 10.44 mols v = (10.44 x 8.314 x 273)/100 = 236 L Can someone tell me if I did it correct. Thanks very much.

Chemistry (Check)

Which of the following exhibits the highest boiling point? a. Ne, Ar, Kr, or Xe? Xe b. HF, HCl, HBr, or HI? HI c. CH3CH3, CH3COOH, or CH3OCH3? CH3COOH d. F2, Cl2, Br2, or I2? I2 e. NaCl, SO2, or N2? SO2 Are these right? I just went by molar mass. If these are wrong, please ...

language arts

Could you check my answer please..thank you Which of the following sentences contain a linking verb? A. Teresa wore her favorite shoes today. B. Her shoes look really comfortable.xxx C. She put them on with striped socks. Teresa walked for hours without a complaint! thank you

ENGLISH

Please check and make sure my words are spelled correct and I have commas where they need to be.If not please correct it for me.Also do I suppose to capitalize smothers canning fortune. Please let me know whether you want to go by air or drive to the meeting in Chicago. If you...

pennfoster

Mary Palm's checking account had a starting balance of $785.63. She wrote a check for $57.00 for groceries and a check for $125.00 for a car payment. Yesterday she deposited $57.25 in her checking account. What is Mary's current balance

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.

Physics

Please help! I've tried solving this with trig but I can't seem to figure out what I've been doing wrong. Two positive point charges, each of which has a charge of 2.3 × 10−9 C, are located at y = +0.60 m and y = −0.60 m. A)Find the magnitude of the resultant ...

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

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 ...

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...

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 ...

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...

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...

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.

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...

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 ...

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.

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