# Trig check my work please?

87,593 results, page 52

### Foreign languages

Can you please check if the following examples containing phrasal verbs are possible? Thank you, Writeacher. 1) She sent her children off to school. She had to change a tyre, but she didn’t know how to set about it. (+ ing) 2) The carpet has worn off. After an hour the pain ...

### Chemistry II

Hydrochloric acid (77.0 mL of .267 M) is added to 236.0 mL of .0730 M Ba(OH)2 solution. What is the concentration of the excess H+ or OH- ions left in the solution? Done two of these. They are all alike. Use the template from the previous problem. Post your work if you get ...

### maths..HELP!!

this is a question i don't understand..please help! "JAMES GETS £5 POCKET MONEY A WEEK. HE SAVES £1.50. HOW MUCH DOES HE SAVE OVER 6 WEEKS? IS IT £9? y = 1.5x, so ya 9 seems to work. thanks for the help Yes, 1.50 x 6 = 9

### calculus

The volume of a right circular cone is given by V=(1/3)3.14r^2*h, where r is the radius and h is the height. Find dV/dt if r=4, h=5, dr/dt=6, and dh/dt=-3 Please try to show as much work as possible

### Calculus

Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis. y=ln x, y=0, x=1, x=3 Please show the steps in your work, thanks! :)

### Calculus

Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis. y=ln x, y=0, x=1, x=3 Please show the steps in your work, thanks! :)

### APChem

does anyone know a good website i could look at so i could answer this question: ? Explain how indicators work using a chemical reaction as part of your explanation. Any websites? please? thank you!!

### kwame nkrumah university , ghana

the impact of the 3.5g technology on the computer and human production.its a project work and am supposed to present it in the next 24 hours .please help me.

### english

Is it ethical telling an associate and close friend that she should pay more attention to her work responsibilities, or management will fire her please explain why?

### physics help please

question # 1 :Estimate the work you do to mow a lawn 13m by 23m with a 60cm wide mower. Assume you push with a force of about 15 N

### ALGEBRA 117

HI I am stuck on how they work this one problem S= 4m how fast was the car travling to have skid maks of 121 feet can someone help me please

### college algebra

solve the following inequality. write the answer in interval notation x^3-4x^2-21x<0 please show work so i can understand this problem better! thanks

### Algebra

.428571428571 with the digits 4,2,8,5,7,1 repeating indefinitely in that order. What digit is in the 200th place. To the right of the decimal point? Is the answer 8? Please show your work. Thanks:)

### Algebra

.428571428571 with the digits 4,2,8,5,7,1 repeating indefinitely in that order. What digit is in the 200th place. To the right of the decimal point? Is the answer 8? Please show your work.

### chemistry

joules needed to melt a 525 g ice cube at 0 degree C and to warm the liquid to 15 degrees C (two steps please show work)

### college algebra

find the complete zeros of the polynomial function. write f in factored form. f(x)=x^3-7x^2+25x-39 please show all work. I do not understand this.

### calculus

I need help solving the following problem. Could someone please help me and explain how to work the equation. Thanks in advance. [intergral x sqrt3x dx I hope this makes sense

### Calculus

Find the instantaneous rate of change of V with respect to r when r=100 V(r)=.2r^2-20r+600 using limit definition. Please show work for understanding, thank you :)

### Chemistry

Identify the atom that increases in oxidation number in the following redox reaction. 2MnO2 + 2K2CO3 + O2 2KMnO4 + 2CO2 *A.) Mn B.) O C.) K D.) C Please show work Thank you.

### Algebra 2

Using the integers 2,3,4,5, How many 3-digit odd numbers less than 300 can be formed if no repetition of digits is allowed? Please explain and show work.

### Algebra2...........

Using the integers 2,3,4,5, How many 3-digit odd numbers less than 300 can be formed if no repetition of digits is allowed? Please explain and show work.

### Algebra 2

Using the integers 2,3,4,5, How many 3-digit odd numbers less than 300 can be formed if no repetition of digits is allowed? Please explain and show work.

### polynomials

can someone please help me with this problem I have to get the sum diff and product I keep trying to work it out but i really think im blowing it. x^3- ¡¼2x¡½^2 + 3x-1 ¡Ã x^2- x+4

### Chemistry test help please

How many liters of chlorine as can be produced when 1.96 L of HCl react with excess O2 at STP Show Work A.0.49L B.0.98L C.1.96L D.3.92L

### Math (Elementary Algebra)

What is the value of the expression 2x^2 + 3xy - 4y^2 when x = 2 and y = -4 ? Please help this is for my accuplacer. If you could show your work explaining how you got the answer that would be awesome. Thank you in advance

### Pre-Calculus

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x - y + 3z = 12 x + 4y + 6z = -32 5x + 3y + 9z = 20 Please help me..

### English

Write a well organized essay in which you show how the characters relationship to the past contributes to the meaning of the work as a whole. My Question: What is it asking for?? Explain in Details Please

### Spanish-SraJMcGin please help ?

I'm so confused with these-please check them. ¿Estudias algo los sábados? No, no estudio nada los sábados.Do I need the no, no or just one no, estudio? ¿Hablas a francés a veces? No, no hablo nunca a francés. Once again, do I need no, no hablos or just no, hablo nunca?

### Programming Logic

How do I write case logic pseudocode and visual logic nested if-then-else flow charts for atm check balances, making remote photo capture check deposits, and perform balance transfers?

### physics

Im confused! How would you calculate the work done by a plane? I know work= f d, i just don't know how to get the force and distance!

### science

how much work is required to pull a sled if you use 60j of work in 5 seconds

### Physica

How much work is done by a person lifting 2 Kg object from a bottom of a well at constant speed of 2 m is ( work =...... kj )

### Management

operational planning sets up work schedules, routine work procedures, and timetable

### Math

Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?

### Math

Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?

### Math

Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?

### physics

Guy has to get a piano onto a 2.4 m high platform. He can use a 3.0 m long frictionless ramp or a 4.0 m long frictionless ramp. Which ramp will Guy use if he wants to do the least amount of work? Either ramp as the work done is same in both cases. The shorter ramp will require...

### algebra

Complete the following word problems. 14.It takes 9 hours for Isabella to rake leaves by herself,but her brother Matthew can work three times as fast.If they work together, how long will it take them to rake leaves? Rate Time Work Done Isabella Matthew

### "Y912f", please givethis note to your pare

"Y912f", please give the follow note to your parents. Dear Parents of Y912f, Your daughter has been receiving help from Jiskha for quite some time. Our task on this site is to "help" students learn, not do their work for them. It has become obvious that "Y" needs additional ...

### Math

please help me I am not really sure about this please check answer thanks :) Mary has decided to purchase furniture. She has 2 choices she can pay the full amount of $4,200.The other choice is to finance the furniture for two years with an installment loan. The loan requires a...

### Trig

Use the half angle formula to find the exact value of tan 7 pie/8

### Trig

Solve the equation on the interval 0 less than or equal 0 < 2pi. 1. sec 30/2 = -2 2. cos(20 - pi/2) = -1 3. tan(0/2 + pi/3) = 1

### trig

transform the expression on left to one on right csc x-sin x to cot x cos x

### Trig

Hi. Can somebody help me solve this equaton with EXACT answers? ----- sin3x = 0 ----- Thankyou! All help is appreciated.

### Trig

Find the exact value of: sin405. reference angle=225 sin225= -.707106781 = -.71

### trig

Write an expression that gives all solutions to the equation sin x + cos x = - radical 2

### trig

Give an equation of a cosine function of x which has a phase shift along x of 5 units and an amplitude of 4

### trig

Give an equation of a cosine function of x which has a phase shift along x of -1 unit and a wavelength of pi/3

### trig

simplify and write the trigonometric equation in terms of sine and cosine. tan^2x-sec^2x

### Algebra2/Trig

Evaluate the indicated function for f(x)=x2+1 and g(x)=x-4 Note: x2+1 means x squared plus one. (2f)(5)

### trig

Find cosq and sinq if the terminal side of q lies along the line y = - 2 x in quadrant IV.

### Trig....

use specific triangles and the unit circle to geth the values. tan(5pi/6?)

### Trig

Find the distance from pi. 7 pi/6. I subtracted 2 pi from this and got -5pi/6. But the correct answer is pi/6. Whwere did this come from?

### trig

Rewrite cos4x as an equivalent expression that does not contain powers of trigonometric functions greater than 1.

### trig

Rewrite 8 cos2 x as an equivalent expression that does not contain powers of trigonometric functions greater than 1

### math

The terminal side of theta is in Quadrant III and lies on the line y = 2x. What are the 6 trig functions?

### Algebra 2/trig

How would I calculate the following function value? tan = 29degrees 36feet

### trig

Write the following equation in standard form and identify the type of conic: 9y^2 - 4x^2 + 8x + 18y + 41 = 0

### trig

Find the 6 trigonometric function of teta if it's terminal side passes through the point(1,2)

### trig

on the same set of axes sketch the graph of f(x)=sin2x and g(x)=2sin x for x (o,180 degrees)

### trig

Given tan A = .29 find the angle A in degrees. Round your answer to the nearest hundredth.

### 12th grade Trig

What are the period and 2 consecutive asymptotes? 1. y= -3tan pi x 2. y= 2 sec 4 x 3.y= csc x/3 4.y = 3cot pi x/3

### trig

find exact value using sum or differnce equations. tan(19pi/12)

### Math/Trig

Find two exact values of sin(cosˉ¹ √5/6)

### Math/Trig

Find the area of a sector of a circle with a radius of 3 m and a central angle of 125degrees.

### Math/Trig

Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.

### Math/Trig

Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.

### trig

Find the altitude of an isosceles triangle whose base in 30 cm vertex angle is 75 degres

### trig

2 cosine squared pi over 8 minus 1 find exact value of given expression

### trig

use a sum or difference identity to find an exact value cos pie/12

### trig identies 5.3 &5.4

use a sum or difference identity to find an exact value pie/12

### identities trig?

find all solutions to the equation in the interval [0,2pie] cos2x=cosx

### trig

angle a is acute and sin = u. find the other five trigonometric functions in the terms of u.

### trig

use a half angle formula to find the exact value of cos 75 degree

### trig

A sine wave function f(x) = a sin(bx) has amplitude 10 and period 40. What are the values of a and b? (A) a = 10 and b = 20/pi ( B) a = 10 and b = 1/40 (C) a = 10 and b = pi/20 (D) a = 10 and b = 40 E) None of the above.

### Trig

Use a cofunction to write an expression equal to csc(4ð/11). I need help solving this problem. Thank You

### Algebra 2 / Trig

Given cos X = -0.147, find two possible values for X that are not co-terminal.

### Trig

find cos x/2, sin x = 1/4, 360 < x < 450, use half-angle identity

### trig

find the exact zeros of the function in the interval [0, 2π) 2 cot squared x + 3 csc x=0

### Trig

Find the amplitude, period, and phase shift of the following function: y=-2cos2(θ+45)

### Trig

A car is traveling at a speed of 55 mph with a bearing of 210°. What vector represents the velocity?

### trig

find a value of interval in degrees cotalpha=1.3692847 alpha=0.023903 is that correct?

### trig

Solve sin ¥è = -0.204 for 90¨¬ < ¥è < 270¨¬. Give your answer to the nearest tenth of a degree.

### trig

evaluate the expression below at t=4 p=$400 and r=-9% round youre answer 2 decimal place

### trig

Find the exact value by using a half-angle identity. cos 22.5 degrees

### Trig

Find the exact value of tan 5pi/12 using the half-angle identity.

### trig

write equations expressing: 19cos(theta-50degrees) as a sum of sine and cosine.

### trig

write an equation expressing 19cos(theta-50degrees) as a sum of sine and cosine.

### trig

if the terminal ray of an angle 0 in standard position passes through the point (-1,3),then cos0=

### TRIG HELP ASAP

I need help trying to find the major and minor axis on this problem: x^2+3y^2-6x+24y+6=0

### trig

The minute hand of a clock is 6 inches long. What distance does its tip move in 16 minutes?

### trig e-maths

giving that cosx=4/5 and siny=12/13, find cos(x+y) when x is acute and y is obtuse angle

### Trig-desperate

f(x)=sin2x and g(x)=1/2tanx for x is the element of [-90;180] 8.1)calculate the x-coordinates of the points of intersection of f and g.

### Trig

How do you find the exact circular function value of csc(-23pi/6)? I don't know how to do the pi symbol on the keyboard.

### trig

a voltmeter's pointer is 3 cm in length. find the degrees through which is rotates when it moves 1.1 cm on the scale?

### Trig

There is an airplane at an altitude of 12000 ft. The angle of depression is 1 degree. How far on the ground is the plane.

### trig

Use an addition or subtraction formula to simplify the expression: tan(2−u)=cot(f(u)).

### TRIG

show that cos(pi x) = pi cosx is not an identity by finding a single value of x for which it fails to hold.

### math

(-3/5, 2) is a point on the terminal side of theta, find the value of the six trig functions