Trig check my work please?

88,597 results, page 25

Physics

A string of length 50cm is used to hang a picture frame from a nail hammered on a smooth wall. The frame is 20 cm wide and weighs 10N. It hangs symetrically. The angle which each part of the string makes with the vertical is 23.6. - State the magnitude and direction of the ...

physics thermodynamics

A gas expands from a volume of 2.00m^3 to 6.00m^3 and does 6912 joules of work against a constant outside pressure. Calculate this outside pressure in Pa. The answer is 1730 Pa, but I don't know how to get that. I honestly have no idea where to start or what formulas to use. ...

English

If it snows tomorrow, what will you do? 1. If it snows tomorrow, I will go out with my dog. 2. If it snows tomorrow, I will make a snow man at the back yard. 3. If it snows tomorrow, I will meet my girl friend. 4. If it snows tomorrow, I will do snow fights with my friends. 5....

Physics

15. A refrigerator weighing 1500 N is to be lifted onto a truck bed that is 1.0 m above the ground. When pushed up a slanting ramp 2.0 m in length a force parallel to the ramp of only 800 N is required to move it at constant velocity. Comparing the work involved in lifting the...

accounting srajmcgain

indicate whether the following items in a bank reconciliation should be: A)Added to the check book blance B) DEDUCTED FROM THE CHECKBOOK C)added to the bank statement balance D) deducted from the bank statement balance 1) deposit of 1,250 that was recorded incorrectly in the ...

English

1. Listen again and check on T if the sentences match with the dialogue. Check on F if they don't match. 2. Listen again and check T if the sentences match the dialogue. Check F if they don't match. ----------------- Which one is correct? Do we have to use 'on' or 'with'?

Math ~ Check Answers ~

Please Check My Answers. 1: Solve each inequality. m – 7 < 6 a. m < - 1 b. m > 1 c. m < 13 d. m < -13 2: Solve each inequality. p + 12 > 9 a. p > 21 b. p > 3 c. p > -21 d. p > -3 My Answers: 1: b. m > 1 2: a. p > 21

calculus

At the indicated point for the function, find the following. A graphing utility's numerical derivative feature can be used to check your work. y = (x3 + 2x)3 at x = 3 (a) Find the slope of the tangent line. (b) Find the instantaneous rate of change of the function.

Please check solution

A uniform solid disk with a mass of 40.3 kg and a radius of 0.454 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk (a) What is the net torque produced by the two forces? (Assume counterclockwise is the positive direction (b) ...

Molar Mass & Elements

The weight percent of oxygen in an oxide that has the formula MO2, is 15.2%. What is the molar mass of this compound? What element or elements are possible for M? what can someone give me a push in the right direction???? Let x be the taonic mass of the unknown element. Solve ...

Math

The current, I, in amperes, for an electric circuit is given by the formula I=4.3sin120(pi)t, where t is time, in seconds. a)At what time is the current at its max volume? How does your understanding of co terminal angles help in your solution? b)What time is the current at ...

College Algebra~ Check answer please

Can someone check my answers please. The formula for calculating the amount of money returned for an initial deposit into a bank account or CD (certificate of deposit) is given by A=P(a+r/n)^nt A is the amount of the return. P is the principal amount initially deposited. r is ...

Social Studies 8R - HW. Qs. Check

Why did many freedmen and poor whites become sharecroppers? Answer - Some large planters had held onto their land and wealth through the war. Now they had land but no slaves to work it. am i correct???????????

math 1 question --- pls check my work!

ok, did i do this right? (is this the right answer) Find the lateral area for the given cylinder. Use 3.14 for and round to the nearest whole number. (1 point) 144 yd^2 288 yd^2 2,712 yd^2 904 yd^2 i think its D, 904??

Math question

A cone-shaped container has a height of 9 in. and diameter of 2 in. It is filled with a liquid that is worth $2 per cubic inch. What is the total value of the liquid in the container? Use 3.14 for π . Enter your answer in the box. I think it's 18.84 can someone check my work?

algebra--distributive

how would you do this prob. negative4-(5y+6) = negative 7y+3 thanks. happy halloween I'm going to assume your problem is this: -4 - (5y + 6) = -7y + 3 If that's the case, distribute the negative over the terms in the parentheses first: -4 - 5y - 6 = -7y + 3 Combine like terms...

math

A does 8/15 of a work in 8 days and the remaining work is finished with the assistance of B in 4 days . how long will B take to do the work alone

math

A does 8/15 of a work in 8 days and the remaining work is finished with the assistance of B in 4 days . how long will B take to do the work alone

MATH

A does 8/15 of a work in 8 days and the remaining work is finished with the assistance of B in 4 days . how long will B take to do the work alone

critical thinking

how do assumptions relate to the process of critical thinking? Please note that we don't do students' homework for them. Once you have come up with a response to these questions, please re-post and let us know what you think. Then someone here will be happy to critique your ...

Math

Can you please help me select at least five numbers; 0 (zero), two even, and two odd numbers and do a simple substitution of number for variable in a formula. And can you explain each step and show the work on how you came up with the answer please thank you.

calculus--please help!!

given the following piecewise function F(x)={x+11 for -9¡Üx<-3 2 for -3¡Üx¡Ü2 2x-6 for 2<x¡Ü5 {--this symbol is to be around all three of the lines. Find: a. the domain b. the range c. the intercepts d. if f continious on its domain. If not, state where f is ...

Calculus Help Please Urgent!!!

find the limit algebraically. Use L'Hospital's Rule where appropriate. If there is a moare elementary method, consider using it. If L'Hospital's Rule doesn't apply, explain why lim -> 0 (cot(x)-(1/x)) show work please!!!

Government

The major function of congress: A. is to check the president. B. is to inform the people. C. is to enact legislation. D. is to check the Supreme Court.

Physics;Help!!!!!!

There is apparently no one online who can help with physics questions right now. Please check back later to see if a physics teacher has addressed your question. Multiple posts won't get faster answers. Thanks. =) The question is in the first question marked physics beside ...

Math

1. I did it this way, but it doesn't check right 2(10-y)=30 _ _ 2 2 (10-y)=15 +10 +10 y = 25 Check: 2 (10-15) = 30 -30 is not equal to 30!!!

trig

Okay, I've been getting some of these, but I can't seem to verify this identity... any help? Here's the problem Sin(x+y) + Sin(x-y) = 2sinxcosy Okay, I've been working on the left side, and distribute, getting: Sinx + Siny + Sinx - Siny And, the sinx's add up to the 2sinx that...

Math>>>>if anyone could check my answer

this problem is difficutl for me i have an answer but im unsure so if someone could check my answer please. heres my problem: A light year is the distance that a light travels through a vacuum (space without matter) in one year. A light year is about 9.46 x 10^12km. The ...

physics

A 6.25-gram bullet travels at 365 m/s. It hits and enters a 4.50-kg crate. The crates slides 0.15m along a floor until it comes to rest. Find the friction force between the crate and the floor I used p=mv to get momentum and got 2.28125 N•s I calculated speed of the crate/...

statistics

12) The regression equation Credits = 15.4 - .07 Work was fitted from a sample of 21 statistics students. Credits is the number of college credits taken and Work is the number of hours worked per week at an outside job. A) Interpret the slope. B) Is the intercept meaningful? ...

Physics (Work)

The work required to stretch a certain spring from an elongation of 4.54 cm to an elongation of 5.54 cm is 31.1 J. (a) Is the work required to increase the elongation of the spring from 5.54 cm to 6.54 cm greater than, less than, or equal to 31.1 J? (b) Verify your answer to ...

Geometry/Trig

In triangle ABC, A is a right angle, and m b=45 degrees. What is the length of BC? If your answer is not an integer, leave it in simplest radical form. a. 16 ft b. 16 sq 2 ft c. 16 sq 3 ft d. 32 ft I'm really confused as to how to do this... Could someone please explain and ...

Spanish

Can someone please check my work? ¿Qué hacen? Write complete sentences using the elements below. 1. entender el español/nosotras Nosotras entendemos el españl. 2. no querer sombreros amarillos/Ramón y Antonio Ramón y Antonio no quieren sombreros amarillos. 3. preferir la...

physics

A 5.3-kg block is pushed 2.3 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of θ = 30° with the horizontal, as shown in the figure below. If the coefficient of kinetic friction between block and wall is 0.30, determine the...

Phyics Word Problems

Could you please check my work and help me with two of the problems. An airplane that flies at 100 km/h with a 10 km/h tailwind travels at 110 km/h relative to the ground. If it instead flies into a 10 km/h headwind, its groundspeed is 100km/h-10km/h = 90 km/h The average ...

Chemistry

Can someone please check my work? Calculate the mass of (NH4)2S2O8 needed to prepare 250mL of a 0.100M solution. I got 5.705 g. Calculate the volume of 2.00M KI needed to prepare 250mL of a 0.200M solution. I got 0.025L or 25mL. Calculate the volume of 0.100M Na2S2O3 needed to...

Algebra

I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks! The equation is: .05x-.6(x+2)=.08 Please show the work as well as the answer. Thanks again.

Trig

4tan^2u-1=tan^2u 3tan^2u=1 tan^2u=1/3 sq. root of (tan^2u)=sq. root of (1/3) tanu=sq. root of (3)/3 tanu=sq. root of 1 Did I do this one right? If not, could you please show me the correct method?? Thanks!

Physics

Starting from rest, a 5kg block slides 2.5 m down a rough 30o incline in 2 seconds. Find a) the work done by the force of gravity. b) the work done by friction. c) the work done by the normal force Do part b last

@ Online Students

A student recently posted this. Please think about it. "quick backstory; i've been cheating on all of my work except portfolios this whole year cause i'm in online school. but i'm wanting to learn since there's gonna be ACT test in REAL so... please help me on how to do this!"

math- check

please check: this deals with a rectangular prism: RECTANGULAR PRISM HAS (6 FACES) 4 FACES ARE FORMED BY RECTANGLES 2 FACES ARE FORMED BY SQUARES A RECTANGULAR PRISM HAS 12 EDGES A RECTANGULAR PRISM HAS 8 VERTICES t FOR TRUE, f FOR FALSE T : IT HAS NO CURVED SURFACES T: ALL OF...

PHYSICS

Three moles of an ideal gas are compressed from 5.5*10^-2 to 2.5*10^-2 m^3. During the compression, 6.1*10^3J of work is done on the gas, and heat is removed to keep the temperature of the gas constant at all times. Find the temperature of the gas. I posted this question few ...

English

Posted by rfvv on Saturday, May 22, 2010 at 2:09am. 1. How about goind economics camp? 2. How much did you spend? I bought a $50 shirt and a $5 socks. (Would you check the expressions? Please correct incorrect expressions?) English - SraJMcGin, Saturday, May 22, 2010 at 2:11am...

MATH

Suppose the annual expected mortality rate from coronary disease is 500 per 100,000 individuals. In a specific community of 600,000 individuals, how many deaths are expected to be attributed to coronary heart disease over a one year period? my work: 600,000/100,000=6 6x500= ...

precaculus

Convert the rectangular coordinate (2,-2) to polar form and find two additional representations of this point. Can you check my work and explain how to finish the question? r=√(2)2+(-2)2 r=2√2 tan theta = (-2)/2 theta = -1 polar coordinate= (2√2, -1)

Spanish 7th grade Please check

We are doing double verbs and leaving the second one infinitive form and also present participles with cantar becoming cantando-Could you please check these questions I need to answer? Thank you 1.¿Sabe tu padre hablar inglés? Sí, mi padre sabe español. 2. ¿Cuándo vas a ...

Business Fiance

On November 1, 2009, Broom Company received a bank statement that showed a $2950 balance. Broom showed a $4010 checking account balance. The bank didn't return check No. 124 for $1080 and check No.138 for $720. A $3200 deposit made on October 30 was in transit. The bank ...

6th grade math

Please check to make sure I did these correctly, so confusing. Thank you. Rename each fraction as a terminating or repeating decimal 13/20 .65 1/3 0.3333333333333333 2/9 0.2222222222222222 5/12 0.4166666666666667 1/16 0.0625 Rename each mixed number as a terminating or ...

Grammar Check

Can you please check this to see if my grammar is correct. Thank you :) Thank you for all that you have done & continue to do, for me. I wouldn't be where I'm at today, if it wasn't for all your help. I feel like I have improved so much, since the first day that I came to see ...

Math

A bottle contains at least 4 times as much juice as a glass contains. The bottle contains 32 fluid ounces. Write an inequality that shows this relationship. Please help me show your work please and thank you

Medical Physics

A block is acted on by a force that varies as (2.8*10^4 N/m)x for 0<=x<=.21m, and then remains constant at 5880 N for larger x. 1. How much work does the force do on the block in moving it from x = 0 to x = 0.30 {m}? 2. How much work does the force do on the block in ...

Language Arts - Please Check My Answer For This

Please help me with the following: Read the sentence. Juanita used her affinity for numbers to help her design a computer program that relied on college-level math formulas, even though she was only in middle school. Based on the context clues in the sentence, what is the best...

chemistry calorimetry

how can i get the mass of a liquid when i'm given the heat enrgy that is added, and the specific heat of the liquid to which is added, plus the increase in temperature. q = mass x specific heat x (Tf - Ti) q is heat in Joules. mass in grams specific heat in J/g*C Tf = final T ...

dog behavior

please check my answer thanks so much :) What is the suggested method of testing a dog for graduation requirements? A. Observe the dogs during classes and check off when they properly perform a command. B. Test the dogs privately during the class before the graduation exercise...

Math 2(Please Check)

Problem: (x+2)/2x^2+5x+2 + (x-3)/2x^2-5x-3 What I Got: 0 at x=0, one gets 2/2 + -3/-3 which is not zero. You messed up a sign, I suspect. you are right girl

German

Could someone please check this for me? It's supposed to be a presentation/speech, but I think I've made quite a lot of mistakes. Thanks for any help you can offer :)

Maths - Affine transformations

Can you check my calculations please g maps points (0,0),(1,0),(0,1) to (6,-2),(6,-1),(5,-2) So, g(x) = (0 -1) .....(6) ..................(1 0)x + (-2) f is a reflection through y=x-2 so, f(x) = (0 1) .....(2) ...............(1 0)x + (-2) So; f o g = g(f(x)) = (0 -1)(0 1) ...(...

English

We endorsed the settlement on condition with no dispute arised thereafter. Please check the above sentence if it is correct in grammar.

Math

Can someone check this for me please... 4x + 8 >= (that is greater and equal to) 4 and 2x - 13 >= -5 the solution: {x|x>= 4} on the graph the highlighted line goes to the left...is this correct?

Grammar and Composition

please check: A popular even in the Olympic Games is the PENTATHLON, which consists of _____ events. five?

math

for ax^2 + bx + c with gradient 4x + 2 and a stationary value of 1 find a b and c and nature of point i think that its a minima and that its 2x^2 + 2x +2 but im not sure can someone check this please

math

In how many different ways can you roll doubles in a monopoly game when you use two die? Please check my answer = 6

Math

Please check my answer: Multiply and simplify (8a^7)/(11p^3) * (121p^8)/(64a) I got (968a^7p^8)/(704ap^3) Is this correct?

To DrBob222(Please check Chem)

(This homework question has been removed due to a copyright claim submitted by K12 Inc.)

Math

Check whether the given number is a solution of the equation or inequality. 2x+6=18;9 I know that I have to plug 18 into x but then i don't know what to do next. Help please? Thanks!

socials please check

how many time zones are there in canada? My options are: a.) 5 b.) 10 c.) 7 though i tried answering this and i got 6? what is the correct answer

Metaphor

Please check if the following are metaphors: A yellow lantern lost at sea Along a taut and singing string

Math please check my answer?

This is my last question. What is the domain of the function below? f(x)= e^(x-4)-2 I got all real numbers is that correct?

Language Art (Please Check)

i pick D. which of the following contains a base word? A.empty B.family C.arcade D.cartoonish

P.E. help please

It is important to(blank) thr victim before calling 911 A. Call B. Care C. Check D. Catch Is the answer C?

Math

What is the lowest common denominator of the four fractions listed below? 20 7/10; 20 3/4; 18 9/10; 20 18/25 a. 2 b. 40 c. 50 d. 100 Answer-a Please check the above.

Algebra 2

Will someone please check if I am right???? find the second and third term of the arithmetic sequence -7, __,__,-22,-27... Options: -12,-15*** My Answer -17,-12 -10,-17 -12,-17

History

In the Eastern Orthodox Chrurch icons were once forbidden by the Pope true ** false check my answers please.

Math (please check my answer!!)

Which of the following is the point of concurrency of the medians of the triangle? A. The incenter B. The circumcenter C. The orthocenter D. The centroid <<<

algebra2 help

Please explain to me how to work both these problems. Thank you. x+x^2/2 +2x^2-x= and y^2/4 + y/3 +y^2/3 -y/5= 7y^2/12 + 2y/15

Algebra

Simply: Please show me how to work the problems. (7/2)^-3

math ( show work please )

117.11 divided by 4.9

math

simplify this expression and please show work. 2(3x+y)+5(x+2y)

possessive noun

please help me with my home work i am trying

math

please show me how to work this problem 76 x45

algebra

factor completely. please show work. a^2-a-6

algebra

solve the equation. please show work 3x^2-2x-4=0

Math

-6(1+2x)=78 Please work the problem out, so I can see how it is done. Thank you!

6th Grade Math

8w-11=45 Please work this out for me Thanks.

math

how would you factor 5x^2+x-3x-3 because I got x(5x-1) -3(x-1) which doesn't work. Please help.

Algebra 1

Help me work these right please, I'm totally lost?

Math115

-4/5 + (-3/4) how do I work this? Will the answer be positive or negative? Please help me!!!!!

Geomerty

If UV = X+6 and UY = x - 1 Find YV. Y is the midpoint of U and V. Please show work.

calculus

Lim= x-Infinite x+0/(x2+1)=? please show work

Algerbra

10,000(1-n/20)=6500 please show work

math

m = 4,(7,6) can anyone show me how to work this problem please and thank you in advance

math

simplify -4(c+3)2c Please show all work

math

Solve -6(5-2z)+5z=8z-3(16-3z) . Please show all of your work.

algebra

^ = to the power 1. 8^1/2*8^-5/2 2.3^5/3(divided by) 3^2/3 **please show work

math

(8/3-1) is a solution to 8x-7y=10 . Please show all of your work

math

Simplify. Please show all of your work. 12* 1/4 +2/-2^3

math

Simplify. Please show all of your work 9c^3+7c-(3c^3-12+c)

math

Solve 4x- 3(5x-8)=23-9(x+2) . Please show all of your work

math

u = m*g*h find the value of h show work please

math

what is 216.3 divided by 10.5? please show the work

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