Trig check my work please?

89,452 results, page 30

calculus

Find the derivative of the function. 1. 2x+5/3x-2 2. (1-x)(1+x^2)^-1 Please show work. TYVM. :)

algebra

Given f(x) and g(x) below, find: (a) f+ g (b) f- g (c) f*g (d)f/g Please show all of your work. f(x) = ãx g(x) = 6x-5

algebra

can you please help me with this so that i can do my other problems simplify and show alll work -4x^2-3x-(x-x^2+3)

algebra

Can someone simplify this equation: -6(5-2z)+5z=8z-3(16-3z) Please help, show all your work.

precalculus

Given f(x) and g(x) below, find: (a) f + g (b) f – g (c)f*g(d)f/g Please show all of your work. f(x) = 5x^2-5 g(x) = x – 7

algebra

y=1/4x-1 1/2y=x-2 This is systems of Equations please work out the problem and explain it

Math

what is the result when 2x^2+3xy-6 is subtracted from x^2-7xy+2? show your work. please help me!

Math

what is 18x^5+3x^3+6x after it is divided by 3x? show your work. PLEASE HELP MEEE

math

I still need to show my work for the days and years please help me. Thank you.

math

Find the domain of the composite function f of g. f(x)=3/x-6; g(x)= 1/x please help and show the work as well.

algebra

find the functions f and g so that f of g =H. H(x)=(6x+9)^4 please show work so i understand this better. thank you

algebra

find the functions f and g so that f of g =H. H(x)=(6x+9)^4 please show work so i understand this better. thank you

algr.1

1/4n+12>3/4n-4 solve the inequality and please show the steps I don't understand how to work it Thanks

calculus please help me

find derivative of: f(x)=e^2 I know that b/c e is a constant the answer is 0, but how do I show that in my work?

pre-calc

cos x+sec x=2 if you could please show all work

math

solve the following exponential equation e^x-4=-e^-x please show work

math

solve the equation. log2(x+4)-log4x=2 please show work

Algebra

I am confused on how solve this substitution problem 4y+3=3y+x 2x+4y=18 If you can, show work please (:

algebra

Given f(x)=x^2+4 and g(x)=3x+1 simplify g^-1(x)(inverse) please show work and explain

Math - HELP!

Distributive Property Expression: 6a(3a+5b - 4) Please show your work and your answer.

Algebra help PLEASE?

how do I work out problems such as 3w - 10w? 13w -7w -7 7w

math

If 12V=3W, and v(not equal)=0, then which of the following is equivalent to 2W-8V? A.0 B.4W C.-6W D.2V E.-2V please show work.

math

8h x $9/h i really need help. i do not understand. Please help, Thank You in advance My work 8/h x 9/h= 72/h i don't know what to do next

Math

What percent o the student population are girls? Please show work!

Algebra 2

Solving By Factoring 7p^2-50p=-7 Please show work for I could learn.

Algebra 2

Solving By Factoring 6x^2-13x=-6 (x-8)(x-5)=x 4x(x-6)-x(x-2)=-24 Please show work I want to learn!!!!!!

Algebra 2

Solving Quadratic Systems x^2+y^2=10 2x+y=4 Please show work I need to know how to do it

Math

What is the least common multiple of 8 and 12? PLEASE SHOW YOUR WORK IF POSSIBLE!

algebra

what is 360/100 into a decimal show work please

Math

What is 0.06 and 0.175 as a fraction?with the work out & the explanation please👍

Math

1. 2 / 9 + 1 /3 2. 1 / 7 + 3 /21 3. 2 /3 + 1/5 4. 1/4 + 2/3 5. 112 + 4 6 6. 1/2 + 2/ 5 7. 1/6 + 5 /12 8. 4/6 + 1/3 9. 1 / 5 + 1 / 8 10. 3/4 + 1 /9 11. 6 /12 + 1/3 12. 4 / 8 + 1/2 OMG help me please anyone and simplify and show all work.

Math

Simplify. Please show all your work and explain. 6a^3b^2/10a^5b^4

algebra

solve the following system of equations, please show work 3x-2y+z=12 x+3y+z=-4 2x+2y-4z=6

Calculus 2

Find the area of the region. Please show work so I can understand. 2y=5x^(1/2),y=3,2y+4x=9

SCIENCE

I did this question in this way but 2 of them correct ,is anyone can help me with this question ,many thanks. Choose the words or phrases that most accurately complete the sentences below. Drag and drop your choices into their appropriate spaces. One of the most effective ...

chemistry/please double check

Hi, I just need to know if I finally got this exercise right. Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 Celsius are converted to 50 grams of ice at -125 Celsius. so, qw= 50*4.184J/g C (125 C-o)= 26.15 x 10^3 qi= 50*2.09*(-125)=-13.065 KJ...

math

Sara has gone to work for 60 days. On 39 of those days she arrived at work before 8:30A.M. On the rest of the days she arrived after 8:30A.M What is the experimental probability that she will arrive at work after 8:30A.M the next day she goes to work

factoring

let f(m)=m^3 + 3m^2 + 3m + 1 notice f(-1) = 0, so m+1 is a factor. Using division, the answer is m^2 + 2m + 1 which factors once more to (m+1)(m+1) so you have (m+1)^3 = 0 and then m = -1 Are you familiar with Pascal's triangle? Did you notice the pattern in the coefficients 1...

Trig

From a point A on the ground, the angle of elevation to the top of a tall building is 24.1 degrees. From a point B, which is 600 ft closer to the building, the angle of elevation is measured to be 30.2 degrees. Find the height of the building. PLEASE HELP ME!

science- please check my work.

Aspirin (C9H8O4) is produced from salicylic acid (C7H6O3), and acetic anhydride (C4H6O3): C7H6O3 + C4H6O3 ¨ C9H8O4 + HC2H3O2 How much salicylic acid is required to produce 2.0 102 kg of aspirin, assuming that all of the salicylic acid is converted to aspirin? for this one i...

check my answers? language arts

1. The fire's angder could no be contained. A). personification *** B.) simile C.) metaphor 2. The flames ran along the deliberate rows of vines, like long curved fingers reaching for the horizon, lighting the night sky. A). personification B). simile C). metaphor *** 3. ''We ...

physics

When we studied the concept of work, we learned that work = force x distance. Now we learn that torque = force x distance. What's different about these two definitions?A) For work, distance and force are in the same direction; for torque they are perpendicular to each other.B...

principles of physics

When we studied the concept of work, we learned that work = force x distance. Now we learn that torque = force x distance. What's different about these two definitions?A) For work, distance and force are in the same direction; for torque they are perpendicular to each other.B...

English

Can you please check these sentences for me, please? Thank you. 1) Why was the 18th century England called Augustan? 2) What were the Augustan (not Augustan) interested in? 3) Who were the first political parties and who did they descend from? Who were they supported by? 4) ...

6th grade

I need to balance the equation and show my work. Ex. N - 2.4 = 5 +2.4 = +2.4 ----------- N = 7.4 How would I show my work for: 2.3 + 4.09 = N I know the answer is 6.39 because I add 2.3 and 4.09 but how do I show the work? Thanks

Math Word Problem %

lisa spend 3 hours driving to and from work each work day. what percent of her day does she spend driving to and from work each work day?

MATHS

A and B take 18 days to complete a work. A left the work after 10 days and B takes 12 days more to complete the work. In how many days can A complete the whole work?

Chemistry

Given that W = -PatmΔV, if a gas expands into a vacuum, the sign of W is ? 1. Positive: work is being done on the gas 2. Negative: work is being done on the gas 3. Positive: work is being done by the gas 4. Negative: work is being done by the gas 5. ZERO: no work is being...

check my answer please

A ball of mass 2kg travelling in a straight line at 4ms^-1 is acted on by a force of 3N acting in the direction of motion for 5 seconds. What is the speed of the ball after 5 seconds? vf=vi+at but a=force/mass a = 3÷2= 1.5 vf=4+1.5×5= vf=4+7.5 vf=11.5m/s^-1 Is this correct? ...

Help!!!! 4 questions!

Please help!! Please! I need you to check my answers for the ones I answered and help me with the others. Please, please do!!!! 1. The energy needed for the changes in the water cycle to take place comes from _____. the sun* win nitrogen green plants 2.Nitrogen-fixing ...

Math - Please Check My Answers

Please help me with the following two problems: Find the greatest possible error for each measurement. 512 m A. 0.5 m C. 0.5 cm B. 5 m D. .005 cm I think the answer is A. Is this correct? Find the greatest possible error for the given measurement if it is to the nearest 10 ...

science/MH

1)2000mg= 2g 2)104km= 0.104m 3)480cm= 0.40m 4)5.6kg= 0.56g 5)8mm= 0.8cm 6)5L= 0.5mL 7)198g= 0.198kg 8)75mL= 0.075L 9)50cm= 0.05m 10)5.6m= 5.6cm 11)16cm= 1.6mm 12)2500m= 2.5km 13)65g= 0.065mg 14)6.3cm= 0.63mm 15)120 mg= 0.12g Thank you, I just needed someone to check my work.

physics urgent!!!

A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the paddler is paddling with an average force of 22 N [N38degreesW], find the acceleration of the canoe and paddler. Use both a component and ...

science and history

How did the apollo 11 space mission pave a way for 1.) technology 2.) science 3.) America 4.) space exploration 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. ...

HELP!

Next year (sophomore year) I'm taking the following courses: Honors Algebra II/Trig Spanish III Health AP Biology Honors English AP World History Is AP Bio and world history hard? or no it's not just the exam. Please tell me because this is my first year taking AP.

Chemistry: check answers

Please check. Thank you. 2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O72– B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best ...

Trig/Pre-Calc

Could someone please help me on this problem. I'm really confused, and this assignment is due tomorrow. Solve the logarithmic equation algebraically. Approximate the result to three decimal places. log4x-log4(x-1)=1/2 To start off the equation, I know you would do the ...

trig

We are doing trig identities in school. I need help with these five: 1.1+sinx/1-sinx=cscx+1/cscx-1 2.tanx+sinx/1+cosx=tanx 3.sec^2x/sin^2x=1/sin^2x+1/cos^2x 4.tan^2x/1+tan^2x=1-cos^2x 5.sinx-sin^3x/cos^3x=tanx

math

Can anyone help with combining like terms? The question - 11 + 5t^2 + t + 6t. I don't have a clue were to begin. Wouldn't it be toget all the T's together? Would 5t^ go with it also since it is an exponent? I think so I am not sure but I think it would be that.Let me check ...

science help pleaseeeeeeeeeeeeeeeee?

I did this question in this way but 2 of them correct ,is anyone can help me with this question ,many thanks. Choose the words or phrases that most accurately complete the sentences below. Drag and drop your choices into their appropriate spaces. One of the most effective ...

English

Writeacher, I left out the following sentences. Can you please check them, too? 1) How are things? I'm sorry we haven't been in touch with each other recently. I've had a busy month. We've been on holiday, and we only got back last week. 2) I spent two weeks in Spain with my ...

Math

Due to the plate tectonics, the summit of Mount Everest moves about 4.5 X 10 ^-3 meter northeastwar in one year. About how many meters does the summit of Mount Everest move in 11 years? 4.09 x 10 ^-3 4.95 x 10 ^-3 4.09 x 10 ^-2 4.95 x 10 ^-2 Can you please check this? I got D...

Marketing Management

What ae subway limited target group? Are you asking what the Subway sandwich company targets as its prime customers? Please clarify your question and we'll try to help you. Actually i am totally lost at what i am really looking for. This was suppose to be another person ...

math

Please check my answers! Simplify the product. 7x(x+4) A. 7x^2+4 B. 7x^2+28x <<<< C. 8x+4 D. 8x+11 Simplify the product. 4x (2x^3 - 7x^2 + x) A. 8x^4-28^3+4x^2 <<<<< B. 16x^4-7x^2+4x C. 8x^4-7x^2+x D. 16x^4-3x^3+4x^2 I just started learning about ...

Physics. please help! due tomorrow!

Let W1 represent the work required to accelerate an object on a frictionless horizontal surface from rest to a speed of v. if W2 represents the work required to accelerate the same object on the same surface from a speed of v to 2v, then which one of the following is the ...

Algebra 1--Please, help me!

1. It takes Dustin 2 hours to shovel the snow from his driveway and sidewalk. It takes his sister 3 hours to shovel the same area. How long will it take them to shovel the walk if they work together? A: Working together, Dustin and his sister can shovel the walk in 1 1/5 hours...

chemistry help~~~~ Please!!!

Sodium-24, t1/2 = 15.0 hr, can be used to study the sodium balance in animals. If a saline solution containing 25 μg of 24^Na is injected into an animal, how long can the study continue before only 1 μg is left? Show work please!

Literature

i have to write an evaluative essay on a work of literature. i have chosen Hiroshima; The Noiseless Flash. in this essay i will write my own statement about the value of a work of literature ( ? ) and then provide reasons why your evalutation is correct and evidence to suport ...

Trig application

Can anyone help me with this problem? I'm so confused. Please help. A security camera is placed 27 feet from the counter at a store. The counter is 18 feet long and the camera is placed 4 feet from one end. What angle, to the nearest degree, should the camera rotate through so...

I need help with my eniglish homework I was absent

I have been absent and I do not get my English homework! ¢¾Sandra Thank you for using the Jiskha Homework Help Forum. That alone does not help us. What sort of work are you doing in your English class? Anytime you are absent your teacher should give you list of what you need...

Precalculus

So for our review, our teacher posted the answers to the review online. I do the problem and check my work with the review, but I am questioning number 8. Here is the problem with the answer: prntscr.c0m/4rnpcn How does it equal 16? I am so clueless! G * F (1)? I got f(1)=6 ...

pre calculus

can you check my work? find two sets of parametric equations for the given rectangular equation x+y^2=4 x=-y^2+4 y=-t^2 x=-t^2+4 x=-t^3 y=-t^3+4 Find a polar equation of an ellipse with its focus at the pole an eccentricity of e=1/4 and directrix at y=4. answer: √(x^2 + y^2...

chem/some1 check my work plz.

air bags actived when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. this causes NaN3 to decompose explosively according to the following reaction: 2NaN3(s)=2Na(s)+3N2(g) what mas of NaN3 must be reacted to inflate an air bag ...

trig

tanx=cotx

trig

what is the perimeter of a circle

trig

evaluate log3 27

math algebre2 and trig

5>4b+9>17 - -

trig

Graph y=-sin2(x-(3.14/4))

Trig

what is 2 pi over 1/5 reduce to?

trig

What is the projection of (2,6) onto (-1,5)?

trig

||v|| = 8 u = <5, 6> find the vector

trig

sin^2è + 2sinè +1 =0

trig

answer of 17(3/5 * 2/3 - 1 divided by 17/8)

ALGEBRA 2 W/TRIG

What is the slope for y=3/4x+1?

trig

sinL=6/7 L(alfa)=?

trig

4=log[7]2401

trig

graphs of trignometry

trig

what is the value of the discriminant x^2-9

alg and trig

6x^3-5x^2+15x+5 / 2x^2-x+3

Trig

sin^2x/sec^2x-1

trig

4cos(2x)+2cos(x)+3=0

trig

3sin(2x)-2cos(x)=0

trig

2cos(theda)-"2=0

trig

sin^-1(sin5pi/6)

trig

How do you solve csc2x + 1 = 0

trig

y = sin (3x-2pi)

trig

2cos^2+sin=1

trig

what is the reference angle for 17 pi/12?

trig

log4+log(x-7)=2

trig

log(x-15)-2=-logx

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