Pre-Calculus

Have pre-calculus questions? Ask a pre-calculus tutor

Connect one-on-one with {0} who will answer your question

Customer Question

"for ryan" 1.fill in the table...

"for ryan"

1.fill in the table shown below for the function an plot the graph from these points.

x -pi/2 -pi/3 -pi/4 -pi/6 0 pi/6 pi/4 pi/3 pi/2 2pi/3 3pi/4 5pi/6 pi

y

y=5 sec x (round to one decimal place as needed for all)

2.the air pressure within a plastic container changes above and below the external atmospheric pressure by the formula p=Po sin 2pi f t.sketch two cycles of p for the given value.use the calculator.

Po= 3.80 lb/in^3, f=4.40Hz

3.the motion of a piston of a car engine approximates simple harmonic motion.given that the stroke(twice the amplitude) is 0.080 m, the engine runs at 3000 r/min, and the piston starts at the middle of its stroke,find the equation for the displacement d as a function of t. sketch two cycles.

d=?

4.in checking electric circuit elements,a swuare wave such as that shown here may be displayed on an oscilloscope.

display the graph of y =2+7/pi sin(pix/7)+7/3pi sin (3pix/7) on a graphing calculator,and compare it to the graph of the square wave.this equation gives the first three terms of a fourier series.as more terms of the series are added, the approximation to a square wave is better.(graph wave goes from -14 to -7,0 to 7,14 to 21 on the x axis)

the graph window setting is [-17.5,24.5,1.75]by[-7,7,1.75]

5.multiply and simplify

sec theta(cos theta+ sin theta tan theta)

6.prove the given identity.

cos theta cot theta + sin theta =csc theta

7.evaluate sin (greek a - greek B) with the following information.

sin greek a = 4/5 (greek a in first quad) and cos greek B= -12/13( greekB in sec quad)

1.fill in the table shown below for the function an plot the graph from these points.

x -pi/2 -pi/3 -pi/4 -pi/6 0 pi/6 pi/4 pi/3 pi/2 2pi/3 3pi/4 5pi/6 pi

y

y=5 sec x (round to one decimal place as needed for all)

2.the air pressure within a plastic container changes above and below the external atmospheric pressure by the formula p=Po sin 2pi f t.sketch two cycles of p for the given value.use the calculator.

Po= 3.80 lb/in^3, f=4.40Hz

3.the motion of a piston of a car engine approximates simple harmonic motion.given that the stroke(twice the amplitude) is 0.080 m, the engine runs at 3000 r/min, and the piston starts at the middle of its stroke,find the equation for the displacement d as a function of t. sketch two cycles.

d=?

4.in checking electric circuit elements,a swuare wave such as that shown here may be displayed on an oscilloscope.

display the graph of y =2+7/pi sin(pix/7)+7/3pi sin (3pix/7) on a graphing calculator,and compare it to the graph of the square wave.this equation gives the first three terms of a fourier series.as more terms of the series are added, the approximation to a square wave is better.(graph wave goes from -14 to -7,0 to 7,14 to 21 on the x axis)

the graph window setting is [-17.5,24.5,1.75]by[-7,7,1.75]

5.multiply and simplify

sec theta(cos theta+ sin theta tan theta)

6.prove the given identity.

cos theta cot theta + sin theta =csc theta

7.evaluate sin (greek a - greek B) with the following information.

sin greek a = 4/5 (greek a in first quad) and cos greek B= -12/13( greekB in sec quad)

Show More

Show Less

Was this answer helpful?

Describe your issueThe assistant will guide you

Chat 1:1 with a tutorLicensed Experts are available 24/7

100% satisfaction guaranteeGet all the answers you need

Related Pre-Calculus Questions

Find the “exact values” ( with square roots and fractions)

Find the “exact values” ( with square roots and fractions) of the corresponding rectangular coordinate to (-3,-pi) then find it for (2,11/6pi)… read more

Toy Company has designed a new toy that uses a spring and

Cooper Toy Company has designed a new toy that uses a spring and follows a sinusoidal curve after you wind it up and starting it. At t=5 seconds, the toy is at the highest point, 18 cm above the groun… read more

YOu gave me this answer yesterday and I had a few questions

Good Morning. YOu gave me this answer yesterday and I had a few questions about the answer. Lamaj rode his bike over a piece of gum. Lamaj continued riding his bike at a constant rate. At time t=1.25 … read more

Can I use the half angle formula to solve the simplify the

Can I use the half angle formula to solve the simplify the trig expressions below1. Cos 3x.cos2x-sin3x.sin2x 2. 2 cos ^2a -1… read more

I need someone to help me with this. I need to compare my

HI, I need someone to help me with this. I need to compare my answers before I turn this in. Thank you. Exam: 250311RR - Trigonometric Functions 1. Find a positive angle less than 360° that's cotermin… read more

1. Find the complete exact solution of sin x = −√3/2. 2. Solve

1. Find the complete exact solution of sin x = −√3/2. 2. Solve cos 2x – 3sin x cos 2x = 0 for the principal value(s) to two decimal places. 3. Solve tan² x + tan x – 1 = 0 for the principal value(s) t… read more

1. The cosine function for a specific angle in a triangle is

1. The cosine function for a specific angle in a triangle is defined by the ratio of the triangle's A. adjacent side and opposite angle. B. opposite side and adjacent side. C. adjacent side and hypote… read more

1. In an alternating-current circuit, the voltage E is given

1. In an alternating-current circuit, the voltage E is given by E=IZ, where I is the current (in A) and Z is the impedance (in Omega) If I=0.859-0.318j amperes and Z=210+150j ohms, find the complex nu… read more

1. Simplify the following expression: sin 4x cos 3x + sin 3x

1. Simplify the following expression: sin 4x cos 3x + sin 3x cos 4x 2. Use half-angle formulas to solve the given problem. Find tanx if sin (x/2)=24/26 *x represents the angle sign-looks like a 0 with… read more

1- what is the frequency of y=(pie/3 x)? a. pie/3 b. 1/3

1- what is the frequency of y=(pie/3 x)? a. pie/3 b. 1/3 c. 1/6 d. 3 2- how many soltions does the system x=10y y=sin x have? a. 4 b. 10 c. 6 d. 7 3. what is tan the power of -1 root3/3 ? a. pie/4 b. … read more

MATH 115 FINAL EXAMINATION This is an open-book exam. You

MATH 115 FINAL EXAMINATION This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use a calculator. You must complete the exam individual… read more

RRJha, you interested in helping me with this one?1.

RRJha, you interested in helping me with this one? 1. To use the law of sines, which of the following statements must be true? A. The triangle must be a right triangle. B. All three side lengths must … read more

1.in checking electric circuit elements,a swuare wave such

1.in checking electric circuit elements,a swuare wave such as that shown here may be displayed on an oscilloscope. display the graph of y =1+16/pi sin(pix/16)+16/3pi sin (3pix/16) on a graphing calcul… read more

1.sketch the graph of the given function.check the graph using

1.sketch the graph of the given function.check the graph using a graph calculator. y=6/5 sinx 2.use the trace feature of the graph calculator to find the value of a for either y=a sin x or y=a cos x, … read more

solve the given trig equations analytically and by use of a

solve the given trig equations analytically and by use of a graphing calculator.use values of theta for 0<_theta<2pi. 4sec theta + 6 = -2 theta=?… read more

1.sketch the graph of the given function.check the graph using

1.sketch the graph of the given function.check the graph using a graph calculator. y=5/2 sinx 2.use the trace feature of the graph calculator to find the value of a for either y=a sin x or y=a cos x, … read more

use a graphing utility to solve the equation. sin x - cos

use a graphing utility to solve the equation. sin x - cos x = x x=? (round two decimal places as needed.)… read more

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.

JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.

Web sites like justanswer.com/legal

...leave nothing to chance.

...leave nothing to chance.

Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.

Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

Los Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

Hesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

Kernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

Woodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

Elkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

Dallas, TX

< Previous | Next >

rajeevanpillai

Master's Degree

487 satisfied customers

B.Sc in Mathematics and M.Sc, M Phil in Statistics

Mr. Gregory White

Master's Degree

167 satisfied customers

M.A., M.S. Education / Educational Administration

mhasan420

Master's Degree

37 satisfied customers

BA Maths, Oxford

JACUSTOMER-yrynbdjl-

Master's Degree

13 satisfied customers

I have taught college Mathematics for the past 10 years.

Dr. Arthur Rubin

Doctoral Degree

12 satisfied customers

Ph.D. in Mathematics, 1978, from the California Institute of Technology, over 20 published papers

Sandhya_sharma

Master's Degree

1,250 satisfied customers

I hold M.Sc and M.Phil degrees in math and have several years of teaching experience.

Kofi

PhD in Statistics

884 satisfied customers

Masters in Mathematics and Statistics

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.