# Trig check my work please?

87,713 results, page 18

### Physics-please check-this can't be right

I asked about a golf ball hit at a 35 degree angle and the hole was 175 m away. What was speed of ball. I got a response, and it follows with my response. I'm not doing something right, can you help, please.Physics - drwls, Saturday, October 9, 2010 at 10:20am You can come up ...

### inequality

(x-4)/(2x+4) is greater than or equal to 1. How do i express solutions to inequalities in interval notation without using the calculator? please help. (x-4)/(2x+4) >=1 multiplying by 2x+4 1) when (2x+4) is +, x-4>=2x+4 or x-2x>=8 -x>=8 x<=-8 notice the ...

### PHYSICS PLEASE HELP QUICKLY

If a person has more mass do they do more work or exert more power? (When walking up the stairs) (Compared to a person with less mass) Am I on the right track? This is what I have so far... The person with most mass does not necessarily do the most work. If two or more people ...

### physics

if a particle has work of 8J and doubles its speed. how much work it has done? Can we still determine work in this problem without mass

### Trig

Solve each equation for exact solutions over the interval [0,360)where appropriate. Round approximate solutions to the nearest tenth degree. Sin^2Theta=Cos^2Theta+1 My Work: Using double angle Identity I subtract 1 to other side therefore: 1-Sin^2theta=Cos^2theta= Cos2theta=...

### Calculus AP - Volume of Revolution

Hi. I have a few calculus problems that I have to do using the washers and shell method to find out what the volume of the graph rotated is. I'll post one question at a time with my work. The problem is, I should be getting the same answer for the problem with the shell method...

### Chemistry

A silicon chip is used in an integrated circuit of a microcomputer has a mass of 5.68 mg. How many Si Atoms are present in this chip. Okay here is how I worked it. Can someone please tell me if its right? 1 mole of Si = 28.086g = 6.022 x 10^23 5.68mg of Si 1g/1000mg = .00568g ...

### Trig

Find all values of theta where 0degrees<theta<360 degrees when csc theta = square root 2 Please detail how/why i can get to the solution. I need to understand the concept clearly...... It will probably relate to something taught down the line I'm sure.

### Theoretical&Experimental Probability please help!

Please check my work thanks!! A number cube with the numbers 1 through 6 is rolled. Find the given probability. 1. P(number < 2) (1 point) A. 1/6 <--- i think this one B. 2/6 C. 4/6 D. 3/6 2. P(number ≥ 3) (1 point) A. 4/6 B. 1/6 C. 2/6 <-- this i think D. 5/6 3...

### Trig

A force of 323 newtons makes an angle of 54 degrees and 20 minutes with a second force. The resultant of the two forces makes an angle of 39 degrees forty minutes with the first force. Find the magnitude of the second force. I have the answer, 814.3022, but I need to know how ...

### Physics

Can someone please give me some insight on how to work this problem? A rotating door is made from four rectangular glass panes, as shown in the drawing. The mass of each pane is 85 kg. A person pushes on the outer edge of one pane with a force of F = 63 N that is directed ...

### Trig

Two planes leave an airport at the same time, one flying at 300 km/h and the other at 420 km/h The angle between their flight paths is 75 degrees. Aftar three hours, how far apart are they ? i guss i have to use the equation D= b.h but i cant fit the number in spot can u ...

### algebra

Please Help Me Check My Work :) 1) Find the 5th term of - f(n)= 3(n-3) My answer- -279 2) Find the third term if the first term is 4 - f(n)= 2f(n-1)+2 My answer- 16 3) Find the third term using the explicit rule - f(n) 4-n/n+3 My answer- 1/6 4) Recursive Function- 1, -2, -5, -...

### Physics

One of the most powerful cranes in the world, operating in Switzerland, can slowly raise a load of 6000 tonne to a height of 12 m. (1 tonne = 1000 kg) The acceleration of gravity is 9.81 m/s2 . How much work is done by the crane? Answer in units of MJ I found it by using Work...

### 5th grade math word problems

bob started each work on the hour. one day he decided to start work twenty minutes early. he started work when his digital watch had consecutive numbers. what time did he start work

### math

A company produces three types of color TVs: Models X, Y and Z. Each model X requires 2 hours of electronic work and 2 hours of assembly work. Each Y model requires 1 hour of electronic work and 3 hours of assembly work. Each model Z requires 3 hours of electronic work and 2 ...

### math

A company produces three types of color TVs: Models X, Y and Z. Each model X requires 2 hours of electronic work and 2 hours of assembly work. Each Y model requires 1 hour of electronic work and 3 hours of assembly work. Each model Z requires 3 hours of electronic work and 2 ...

### Math: Homework Check!

Can you check to see if my answers are correct. If wrong please explain why. 1. 3 ft = 36 L - S x (largest to smallest) THINK: 1 ft = 12 in 2. 72 in = 2 yd THINK: 36 in = 1 yd S - L / (/ means divide) 3. 93 ft. = 31 yd THINK: 3 ft = 1 yd S - L / 4. 500 yd = 1500 ft THINK: 1 yd...

### Unit 4 - Memory, Thinking, and Intelligence

research Spearman's Model of Intelligence and Gardner's Multiple Intelligences. Based on your findings, compare and contrast the two models. Provide several comparisons and several contrasts. Which of the two models do you feel is more in line with psychology today? Support ...

### maths

Driving to work alone. It is reported that 77% of workers aged 16 and over drive to work alone. Choose 8 workers at random. Find the probability that a) All drive to work alone b) More than one-half drive to work alone c) Exactly 3 drive to work alon

### Trig.

4cosBeta=1+2cosBeta 2cosBeta=1 cosBeta=1/2 60 degrees +/- 180--is this right? I know there should be another answer, but I'm not sure if it needs to be 240 +/-180 or 120 +/- 180. I don't know how to tell if it's added to 180 or subtracted, could you please explain??

### Trig Help Please

A smokestack is 200 ft high. A guy wire must be fastened to the stack 30.0 ft from the top. The guy wire makes an angle of 42.0° with the ground. Find the length of the guy wire.

### Chemistry

Can you determine the mass of carbon monxide that is produced when 45.6 grams of methane reacts with 73.2 grams of oxygen gas. Can you please show work in detail please. Thanks

### Chemistry

determine the mass of carbon monxide that is produced when 45.6 grams of methane reacts with 73.2 grams of oxygen gas. Can you please show work in detail please. Thanks

### college algebra, Please help!!

use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=4x^3+3x^2-8x+7;[-5,-2] please show all work

### Chemisty Help Please!

A solution is prepared by dissolving 25.0 g of glucose, C6H12O6, in 125 g of water at 25oC. (show work please) Determine the freezing point of the solution.

### trig

Can someone please help me solve this equation? Solve the equation in the interval [0°, 360°). csc θ = 1 + cot θ

### trig

(-10√2, -10√2), find te magnitude and direction angle of the vector, measure the direction angle in [0, 360). Please help!

### Pre Cal

6-x=2x+9 If you are to solve the equation for x, first try to get the variable on one side of the equation. Let's subtract 2x from both sides to start (whatever operation you do to one side of an equation you must do to the other side as well): 6 - x - 2x = 2x - 2x + 9 6 - 3x...

### Chemistry

How many grams of dry NH4Cl need to be added to 2.10L of a 0.600M solution of ammonia,NH3 , to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8x10^-5. I just wanted to make sure I dd this write, can you please check my work? Thank you!!!! I found the pKa ...

### Chemistry (Check and Help)

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. 8.75 g of mercury (II) nitrate solution is mixed with 9.83 g sodium iodide solution (ppt). Hg(NO3)2(aq) + 2NaI(aq) --> ...

### language could you please check my work

answers are on the bottom 1)A person's hobby a.can be physical recreation b.can be mental recreation c.both a and b 2)A good hobby is is a.exciting b.satisfying c.both a and b 3)Some hobbies are a.lifelong b. given up for something more interesting c. both a and b 4)Hobbies a....

### Math

Robin and Emily are selling boxes of candy bars. Robin sells 36 boxes of candy and Emily sells 24 boxes of candy. Which expression, using the form a(b+c), represents the amount they sold together a. 2(12+24) b. 4(9+6) c. 24 (6 + 36) d. 12 (3 + 2) My answer is B 9+6=15x4=60 60 ...

### calculus-can someone please help me with this ques

Given the following polynomial, find a. the zerros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. end behavior f(x)=(x-1)(x-5) **please show work**

### to KEEGAN

Please use "Post a New Question" and then be sure to ask a question! Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. Then once YOU have come up with a response to YOUR ...

### Calculus 2

Calculus work problem. John bought the following corner lot. Two sides are bounded by 2 roads the back is bounded by a stream that follows the curve y = -x^3 + 8. He wants to build a house in the center of the lot. Where will that be? Please show all work

### Algebra 2

So I solved this problem but, strange as it sounds, I don't know how to do the work. Here's the question: One number is eight less than another number. The sum of the numbers is eighty. Find both numbers. Here's what I've got: y-8=x x+y=80 x=36 y=44 I won't get credit unless I...

### Economics

Please check my work! Thanks! 1. The employees of Abs “R” Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. They decide to pool their resources to purchase the company. This would be called a _______ ...

### Social Studies (please check Ms. Sue)

Please check this. Thanks! 1. After World War II, what type of laws did Congress concentrate on passing? a. civil rights*** b. homeland defense c. international alliances d. taxes 2. Which of the following tactics was NOT used by civil rights groups? a. organizing sit-ins b. ...

### Solving Trig equation

Solve the trig equation exactly in the interval 0≤x≤2π. tan x + tan π/3 ------------------ = square root 3 1 - tan x tan π/3

### Physics-Please check calc

I did this problem last night with Damon's help and I think it's correct at the end of the is-could you please check it? Calculate amount of energy needed to completely vaporize a 50g piece of 20 degree C silver melting point 1064 C L(f) = 64KJ/Kg Boiling point 2856C L(v) = ...

### physics

A bowling ball encounters a 0.76m vertical rise on the way back to the ball rack. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. If the translational speed of the ball is 3.80m/s at the bottom of the rise, find the translational speed ...

### physics

a +35x10^-6 C point charge is placed 32 cm from an identical +32x10^-6 C charge. how much work would be required to move a +50.0x10^-6 C test charge from a point midway between them to a point 12 cm closer to either of the charges? please show work.

### English

Could you please check this letter I have to write to the principal of a school? Thank you. 1) The principal of my school is enthusiastic about the idea of starting a partnership with your school. 2) As you know, our students are between 14 and 18 years old, which correspond ...

### Math

75 + -63 + 7( 115/ -5 + (-8)2 ) -63 is -6 to the third power and (-8)2 is (-8)to the 2nd power. I got 15913 I think that that is wrong and my calculater wouldn't fit all the numbers so I don't know how to check it! Can you please try it so I can double check answers? it is ...

### math

what is the difference between translation , rotation, relections, and dilation in 8 grade work In 8th grade talk, I recommend you check the examples in your book. OR, if you put your definitions here, I can critique them.

### check geo

in which fields do europeans work today? A)heavy duty and mining B)farming and heavy industry c)shipping and transportation d)manufactoring, service and technology industries and agriculture my chioce d

### precalculus

can you check my work? In exercises 10-12, sketch the curve represented by the parametric equations. Then eliminate and write the corresponding rectangular equation whose graph represents the curve. 10. x=t2-6 y=1/2t-1 answer: t=2y-6= (2y+2)2-6 =4y2+8y-2

### math

After dinner, Amanda, Trey and John received the check for their meal. Trey is paying 1/4 of the check and leaving no tip. Amanda is paying the remainder of the check. John is leaving 20% of the check as a tip. Using C as the amount of the check, match each person with an ...

### English

A theme is best described as? A. A moral lesson presented in a work of literature B. The central idea or insight about life revealed in a literary work C. The subject of a work of literature D. A series of related events in a literary work I picked B but it siad it was wrong

### help social studies

in what ways is Islam most likely to impact Muslim during their work days a.they most leave work early b.they will not participate in leisure actives after work c.they cannot have certain jobs d.they need to pause during they work to pray

### trig

Please help me! SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Verify that each equation is an identity. (sec α + tan α)^2 = 1 + sin α/1 - sin α

### trig

6. Compute the modulus and argument of each complex number. I did a-c and f. D. -5 E. -5+5i G. -3-4i 7. Let z= -5sqrt3/2+5/2i and w= 1+sqrt3i a. convert z and w to polar form b. calculate zw using De Moivres Theorem c. calculate (z/w) using De M's theorem Please help with ...

### Chemistry

Please help me verify the following question: Consider the following ion; XF2-2 What is the oxidation number assigned to element “X”? Show your work My answer: X F2-2 X -1(-1) X -3=0 X = +3 Please let me know if right. Many thanks!

### math please help

Evaluate the following expressions show all your work. A.11^0 B.11^2/11^2 C. Are the answers to both parts the same? Why or why not? Please help me I'm really stupid in math and I can't figure these out?

### physics

Two pieces of metal (A and B) are identical in every way, except that A has a much larger thermal expansion coefficient. If equal amounts of heat are added to both pieces of metal, which metal does more work on its surroundings? 1. A 2. B 3. They do the same work. 4. Unable to...

### physics

A 4.74 kg spherical ball with radius 1.4 cm rolls on a track with a loop of radius 39 cm that sits on a table 1.2 meters above the ground. The last 1 meter section of the track is horzontal and is not connected to the rest of the track. 0.33 meters of this section of the track...

### math- CAN SOMEONE PLEASE CHECK MY WORK

In 1992, the life expectancy of males in a certain country was 73.5 years. In 1996, it was 75.7 years. Let E representthe life expectancy in yeart and let t represent number of years since 1992. Fill in the linear function E(t) that fits the data E(t)=____t+____ uses this to ...

### English

Please check this paragraph.please. Wrongdoing and wickedness are as old as first man born in the world. These problems are so great that man cannot cope with it himself. Man can not escape way from wrongful act and the bad conscience without the help of Almighty God. When we ...

### Math Check My Work Please 2

15. Lisa takes a loan of $10,500 at a 9% simple interest rate for 7 years. a. How much interest will she pay after 3 years? b. How much interest will she pay in total for the loan? $2,835.00; $6,615.00 $8,280.00; $9,720.00* $13,598.00; $19,194.00 $28,350.00;...

### Math(Check Please)

1. Which line is the flattest (or is less steep)? Why? a.

### More Math To Check Please

4c^2 - 12c + 9 This is what I got: (2c+3)(2c-3) *Is that correct.? No, it is (2c-3)^2.

### college algebra

can someone check my answer for me please! 5x+6y=18 solve for y 6y=18-5 y=3-5/6x

### for bobpursley please check

ok So The American Association of Labor legislation did what then n

### Algebra 1

Please help me check my answer. Solve by completing the square. x^2-4x=10

### Math 116 algebra please check

Evaluate x+y/6 for x =57 and y=3 the answer is x+y/6=10

### Math 116 algebra please check

Solve -0.8x < -56 The solution is x<70

### Math 116 algebra please check

Solve 8x - (5x + 7)= 17 The solution is x= 8

### Math 116 algebra please check

Solve 5/2x + 1/4x = 9/4 + x The solution is x 9/10

### math - scientific notation

please check. thanks. (8.3 x 10^-15) (7.7 x 10^4) = 6.391 x 10^-10 Is that right?

### math

Could someone please check these for me? 1. Find the function value if x=2 f(x)=x^3 F(2)=8

### math

can someone check this please find indicated outputs for f(x)= 4x^2 - 2x f(0)=0 f(-1)=6 f(2)=14

### algebra

Find the slope, it it exists x+7y=14 x=7y/14=2 check this problem for me please

### Math

Can you please check to see if these are right? We have to set each of them to y. Thank You. x-y=-3: y=-3x 2x+y=5: y=5-2x 2x+y=8: y=8-2x

### Alg 2 Please can Someone Check this???

1) 8^2y = 52^4y+3 2) 2^3(2y) = 2^26(4y+3) 3) 6y = 104y+78 4) -98y = 78 5) y= -0.796

### Math(please check)

Simplify each expression: 1) (x+8)^2 = x^2 + 64 2) (x-2)^3 = x^3 - 8 3) (x-2y)(x+y) = x^2 - xy -2y^2 4) (x+2)(x^2+3x-2) = x^3 + 5x^2 + 4x-4 Are my answers correct?

### Algebra, ( check please)

A/3+4=6 I subtracted 4 from 4, and 4 from 6. and I got A/3+2= But how do I solve it from here?

### Math

Check please Rewrite using distubutive property 3(x-2) 8(z-3) (t-4)5 -2(x-7) 3x-6 8z-24 5t-20 -2x+14

### 5 th math

what is 1/8= ? Equivalent fraction THIS IS WHAT I GOT ? = 2/16 ,4/32 AND 8/40. CAN YOU PLEASE! CHECK IT FOR ME MS. SUE THANKS!!

### Math Can anyone check my answer please

4z-24/6-z=-z,-4 <<<this is in simplifield form am I right???

### Math Can anyone check my answer please

4z-24/6-z=-z,-4 <<<this is in simplifield form am I right???

### Ms. Sue Help me with my poem

Please look at my last post, so you can check my answers.

### aLGEBRA 2 help please would appreciate

x/x+3 -x/x+3=x^2+9/x^2-9 solve for x and check your answers

### Maths

Quadratic Graphs Can you please check if my values are correct? y=x^2-4x x= -4 so y= 0 x= -3 so y= -3 x= -2 so y= -4 x= -1 so y= -3 x= 0 so y= 0 x= 1 so y= -3 x= 2 so y= 14 Thank you

### Math

Quadratic Graphs Can you please check if my values are correct? y=x^2-4x x= -4 so y= 0 x= -3 so y= -3 x= -2 so y= -4 x= -1 so y= -3 x= 0 so y= 0 x= 1 so y= -3 x= 2 so y= 14 Thank you

### Mrs.Sue

Could you please check my answers down below.

### Mrs.Sue

Can you please check my answers down below?

### Math

add or subtract. P.s this is a polynomial. (2x^2 + 6x + 1) + (-7x^2 + 2x - 3) A. -9x^2 -8x + 2 B. 5x^2 + 8x - 2*** C. 5x^2 - 8x + 2 D. 5x^2 -4x -2 i choose B. check please

### math

y-x=1 2x-y=1 changing it to y y=-x+1 y=2x-1 can someone check if I did it right? If not, please correct me.

### Math

which of the following expression is true? 2^4*2^3=2^12 3^3*3^6>3^8 4^2*4^2>4^4 5^5*5^2=5^10 i think is the c but please check for me.

### English Check please

Ravenous and cavernous italicized meaning is

### math please check

(13-2)squared + (14-12 divided by 3) (11 * 11) + -.6 121+ -.6 =120.4

### Math

Find the area of the following rectangles. 7/2 mm ×14/5 mm. I can up with 98/10 mm. Please check

### math

if the percent was 56 what would the fraction value be I will be happy to check your work on this. Percent means per 100, or /100

### Math

Theo made the table below to show the number of middle school students who attented the last football game. if this data were displayed in a circle graph, how many degrees would be in the sector representing the 8th grade Grades 6,7,8 # of students in 6th grade: 375 7th grade...

### english

Please check my work. How did I do? Also, please correct me on any gramatical mistakes. Thank you. Summary, Analysis, Synthesis, and Evaluation...... Write a paragraph explaining the key differences between the four types of writing. An analysis is your own interpretation of ...

### Algebra help+check please?

Graph the function. Compare the graph with the graph of f(x)=x q(x)=x-1 How would I do this? Cause, I do know that f is the same thing as y and so that in the problem it'd be y=x-1 right? Could somebody please explain how to do this STEP by STEP?

### trig

it says to verify the following identity, working only on one side: cotx+tanx=cscx*secx Work the left side. cot x + tan x = cos x/sin x + sin x/cos x = (cos^2 x +sin^2x)/(sin x cos x) = 1/(sin x cos x) = 1/sin x * 1/cos x You're almost there. thanks so much! i could not figure...

### precalculus

can you check my work Given: r = 4/-2-6sintheta What is the eccentricity of the function? r = 4/-2-6sintheta r=4/8sin theta r=2sintheta the eccentricity is 2