# Trig check my work please?

90,505 results, page 25

I had to convert 2500 millimeters to centimeters.I think it's 250,please check. Thanks!
2. ### Algebra

Use substitution method to solve the linear system. Can someone please check if I did this problem right? Thanks X+y=12 X+3/2y=3/2 Y=21 x=-9

Which of the following would require a cash receipt? A. Credit memo B. Purchase order C. Check D. Refund

Can u please help me with fourth edition improving vocabulary skills short version ? Chapter 1 sentence check 2.
5. ### Calculus

Find the equation of the tangent line to f(x)=x sec x at ((pi/4),(pi•sqrt 2)/4). Please check my derivative .. Is it (sin^2(x)+ 1)/cos^3 (x)?
6. ### Algebra

Please check my answer and let me know if it is right or not. 25+.32m(800)=281 28+.30(400)=148 70+40+2(30+.29)=830 +.29m

Which of the following equations represent a line that has a slope of –5 and that passes through (2, –6)? Check all of the boxes that apply. a.y + 6 = –5(x – 2) b.y – 2 = –5(x + 6) c.y = –5x + 4 d.y = –5x – 28
8. ### Algebra

what is the sum of the interior angles of a quadrilateral? 720 540 360*** 180 Please Check my answers.
9. ### Math

Could someone please help me to solve this equation using exact values. 9^(2x)+4(9^x)=21 and also check for extraneous roots. thank you
10. ### algebra

Find the slope of the line that passes through (-2,-3) and (1,1) 1/3 1 2***** 4/3 For the equation -4y=8x what is the constant variation? -4 -2**** 1 2 Please check my answers
11. ### Math

Given the following values, which point would be considered an outlier? x - 1,2,3,4,5,6,7,8,9 y - 1.2, 4.3, 2.8, 4.1, 5.2, 6, 7.1, 7.9, 9.4. A.) (1, 1.2) B.) (2, 4.3) C.) (4, 4.1) D.) (6,6) * Can someone please check my answer?
12. ### English (Check)

Based on your knowledge of prefixes, what does en- mean? A.Cause to*** B.In front C. Wrongly D.Before Is it A I'm not 100% sure... help please

How many moles of H+(aq) ions are present in 1.25 L of 0.75M Nitric Acid? A. 0.60 mol B. 0.75 mol C. 0.94 mol D. 1.7 mol E. 1.9 mol Please show me how to work this!
14. ### English

What are four things to look for when proofreading? My answers: Reading, grammar check, spelling check, and punctuation.
15. ### Environmental Science

Here is another part of my test that my teacher told me to check. Could you please help me check them? Write the letter of the term or phrase that best matches the description. Mississippi River- I picked b.recharge zone. area above an aquifer- Ipicked c.Nonpoint-source ...
16. ### English

1. I'll probably go and check out that apple, actually. 2. I'll probably go and check that apple, actually. 3. I'll probably go and check on that apple, actually. ------------------ Which one is correct? Do we have to use 'out' after 'check' here? 4. The waitress who served in...
17. ### English

Can you please check if the following sentences are all right? Thank yo very much in advance. 1) We’d like to reserve three seats (for two adults and a child) on the train from Berlin to Bremen leaving at 13.30 on 11th August. 2) We can’t complete the reservation on line ...
18. ### English

Could you check these phrasal verbs, please? Thank you very much, Writeacher. 1) I think they should do away with blue lines and just let people park where they want to. 2) You should have your house done up before you sell it. He dropped in to see me on his way back from work...
19. ### math

what does over time and time in a half mean? Employees who earn an hourly wage can only work 40 hours a week. When they work more hours a week, that's considered overtime. By federal law, employees who work overtime are entitled to 1 1/2 times (time and a half) their hourly ...
20. ### Econ check my work

Is there any way or formula to find SSE with using SSR and SST? because i only have data for my ssr and sst and I need to know my sse or mse?
21. ### math

tom's work is 18km away, he starts walking to work at 5:30. He walks 4km every hour. His work opens at 9:00 will he be on time? sue leaves home and ride her bike to work at 7:30. She rides 12km every hour. When does sue overtake tom. how far have they travelled?
22. ### Physics

An object of mass .550kg is lifted from the floor to a height of 3.5m at a constant speed. How much work is done by the lifting force (include units)? b.) How much work is done by the Earth on the object? c.) What is the net work done on the object? d.) What is the change in ...
23. ### Physics/Math

What work is done by a force (in newtons) F = 3.1xi + 3.1j, with x in meters, that moves a particle from a position r1 = 2.1i + 2.5j to r2 = - -4.9i -3.9j? For Further Reading * Physics/Math - bobpursley, Thursday, March 1, 2007 at 6:27am Work is the dot product of Force and ...
24. ### Social Studies

1) In which of the following ways are Japan and South Korea similar? A) they both are peninsulas B) they both are made up of islands C) they both have dry summers D) they both have few mineral resources <----- 2) Which adaptation to Southeast Asia's geography has been most ...
25. ### Chemistry: Please check my work!I am stumped

When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation for the reaction. b. ...
26. ### Math

The average of X numbers is 15. If the sum of the X numbers is 90, what is the value of X? A)5, B)6, C)8, D)15 or E)75 What is the correct answer and how do you set up the equation? The answer is b)6 because if there are 15 average numbers and the sum is 90 you just multiply 6...

solve the polynomial inequality and graph the solution set on a real num ber line. express the solution set in interval notation x^3+x^2+64x+64>0 please show work

If F(x)dx=1 from 1 to 25, F(x)dx=4 from 1 to 4, and F(x)dx=9 from 17 to 25, then: 1) What does F(x)dx from 9 to 17=? 2) What does (1F(x)-4)dx from 9 to 17x=? I have no idea how to do this problem and have been on it for hours! The problem is not typed incorrectly, this is ...
29. ### math skill sheet 777

i have equal numbers of pennies, nickels ,dimes, and quarters. The total value of my coins is \$2.05. Altogether i have ? coins. Please tell me how you did it and show your work please so i understand.

Three consecutive odd intergers are such that the sum of the squares of the first two integers is 54 more than 20 times the third integer. Determine the three integers. Please help and show all work thank you

loga(x-5)-loga(x+9)=loga(x-7)-loga(x+9) all the a's are lower please show work
32. ### Math 6

Can someone check my answer? Q:r. Harry rides his bike 25 3/8 miles. Karen rides her bike 25 2/8 miles. Who rides farther? A:Karen rode farther. This is because 3/8 is about 37/100 and 2/5 is 40/100. Since both fractions have 25 as a mixed number for them, I didn't have to use...
33. ### Early Child Ed.

Would you please check these questions and my answers, and see if my answers are the best possible choice? 1. A category specifically related to special needs in communication is: A. speech and language disability B. mental retardation C. emotional disturbance D. learning ...
34. ### @ Online Students

A student recently posted this. Please heed. "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!"
35. ### math

find each sum or difference 1. -1/2 + 1/3 1. -1/6 2. -1/3 3. 2/3 4. 1/6 I got 2/3 because I added the 2 numerators and got 2 then I kept the LCM as the denominator so I got 2/3. 2. -3 1/5 + -6 1/2 1. -3 2/7 2. -3 7/10 3. -9 2/7 4. -9 7/10 I got number 3 because I added the two...
36. ### math check my work

a license plate has 2 letters followed by 4 digits.how many license plates are possible if the digits and letters can be repeated? f-8 g-92 h-676000 i-6760000 i think it is i am i correct thank you for helping me
37. ### English

1. He doesn't go to work every Sunday. 2. He doesn't go to work on Sundays. 3. He sometimes go to work on Sunday, and sometimes doesn't go to work on Sunday. 4. He doesn't go to work on any Sunday. [Does #1 mean #2? Are both the same? Does #1 mean #3 or #4?]
38. ### ART

Can someone please check my work. thank you if you do. 1. The gold trim, rich, colors, and plentiful lace on eighteenth-century European fashions communicated which value of Baroque culture? A. Simplicity B. balance C. extravagance D. creativity 2. Japanese kimonos often ...
39. ### Diversity

1. Books such as The Three Little Pigs, Green Eggs & Ham or Good night moon promote children's cognitive & linguistic skills through the ___ strategy. a. reprtition b.eventcasts c. referential language d. recasting I chose "c"referential language can sme one please check it. ...
40. ### algebra

find the value of x and y x+y=12 45x+52y=561 a sporting goods store sold right hand and left hand batting gloves.12 were sold in a one month period for \$561.right handed gloves are \$45 and left handed gloves are \$52.how many of each were sold? please show work The equations ...

First of all I would like to thank everyone for helping me. The reason that I post my questions like I do is b/c they are multiple choice and all I'm looking for is to know if my answer is correct or not. If its not right then I would go back and try to solve it again but I'm ...
42. ### 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 ...
43. ### 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 ...
44. ### 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....
45. ### 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'?
46. ### 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. ...
47. ### 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...
48. ### 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
49. ### 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 ...
50. ### 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.

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) ...

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 ...
53. ### 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???????????
54. ### 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??
55. ### 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?
56. ### Social Studies (Check my work)

What factors contributed to the weakening and decline of Medieval Europe? My answer: In the 14th century, there was a disease called the black death. It weakened Medieval Europe a lot because it killed millions of Europeans. Is this good?
57. ### 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...
58. ### 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 ...
59. ### 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.
60. ### 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!!!
61. ### 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 ...
62. ### 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
63. ### 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
64. ### 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
65. ### 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 ...
66. ### 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.

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 ...
68. ### 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!!!
69. ### 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...
70. ### 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 ...
71. ### 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 ...
72. ### 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/...
73. ### 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? ...
74. ### 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 ...
75. ### 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...
76. ### 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!
77. ### 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 ...
78. ### 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...
79. ### 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...
80. ### 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...
81. ### 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.
82. ### 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...
83. ### @ 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!"
84. ### 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

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 ...
86. ### 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 ...

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 ...
88. ### 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)
89. ### 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= ...
90. ### 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 ...

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 ...
92. ### 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 ...
93. ### 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...

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...

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
96. ### 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 :)
97. ### 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) ...(...
98. ### English

We endorsed the settlement on condition with no dispute arised thereafter. Please check the above sentence if it is correct in grammar.
99. ### 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?
100. ### Grammar and Composition

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