Priya

What is the shift along x of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you

17 years ago

What kind of reflection does the trig function y = cos(4x/3 minus 1) have?

17 years ago

What is the amplitude of y = (3sinx/2) + 4? Any link of proof would be appreciated if you have one Thank you

17 years ago

Calculate the current required to transfer 0.015 mols of electrons in a time of 20 min

17 years ago

Calculate the standard cell potential for the glavanic cell in which the follwoing reactino occurs: 2I^-(aq) + Br2(l) ---> I2(s) + 2Br^-(aq)

17 years ago

Calculate the standard cell potentiqal for the galvanic cell in which the following reaction occurs: 2Na(s) + 2H20(l) --> H2(g) + 2NaOH(aq)

17 years ago

The population of the three species is shown below. Species Population Male Female Bullfrog 30% 60% 40% SpringPeeper 50% 55% 45% Mink Frog 20% 52% 48% Determine the probability that the first two frogs captured are a) bullfrogs b) female bullfrogs c) fema...

17 years ago

Given one of the starting materials and end product for the following reaction, show all reactants, reaction conditions in brackets (where known) and products. ethanol from calcium carbide

17 years ago

If sinx = -3/5, tan x > 0, sec y = -13/5 and cot y < 0, find the following: a. csc(x + y) b. sec (x - y) How do I get the answers of a. -65/33 b. -65/16 Thank you

17 years ago

Find sin (alpha/2) and cos (alpha/2) sin alpha = 3, -pi/2 < alpha <less then or equal to 0 How to get the answer of sin (alpha/2) = -1/square root 3, cos(alpha/2) = square root 6/3?

17 years ago

Solve the given triginometric equation analytically. Use values of x for 0 less than or equal to x less than 2pi P.S Thanks Reiny for your last post, if you are still online.

17 years ago

Solve the triginometric equation analytically. Use values of x for 0 less then or equal to x less then 2pi The equation for this question is sin2x + cos2x = 0

17 years ago

e.g. tan 315 = -1, does that work in our equation ?? Yes, thank you again Reiny! My next question is to find sin theta and cos theta. cos 2theta = 1/3 and pi less than or equal to 2theta less than or equal to 2pi I hope Im not overburdening you with quest...

17 years ago

Solve the given triginometric equation analytically. Use values of of x for 0 less than or equal to x less than 2pi sin^2x - 2sinx = 1 How do I get towards the answer of 3.569, 5.856 Thank you again

17 years ago

If sin theta = x and -pi/2 is less than or equal to theta less than or equal to pi/2, find sin 2theta and cos 2theta in terms of x. Is it alright if I recommend you to my classmates tommorow? YOu seem to know more than my professor!

17 years ago

Solve without using a calculator or tables cos(5pi/6 + pi/4) Thank you Reiny!:)

17 years ago

Prove that, in general, sin(alpha + beta) does not equal sin alpha + sin beta

17 years ago

Please evaluate cos 15 degrees

17 years ago

Please find sin (alpha/2) and cos (alpha/2) sec alpha = 3, -pi/2 < alpha < 0

17 years ago

If sin alpha = -3/5, sin beta = -5/13, P(alpha) is in the third quadrant, and P(beta) is in the fourth quadrant, find the following: a) sin (alpha - beta)

17 years ago

Solve the given triginometric equation analytically 2 sinx = tanx

17 years ago

I am almost finished iwth my questionings:) Solve the given triginometric equation analytically sin4x - cos2x = 0 Priya

17 years ago

Solve the given triginometric equation analytically 7 sinx - 2 = 3(2 - sin x) If your are online, thank you my dear Reiny:) Priya

17 years ago

Given one of the starting materials and end product for the following reaction, show all reactants, reaction conditions in brackets (where known) and products. acetic acid from chloroethane

17 years ago

Write the reaction equation for calcium carbide producing ethanoic acid

17 years ago

Write the reaction equation for Isopropylbenzene producing Benzene P.S I don't mean to be overburdening you with the same kinds of questions its just that there is a quiz on this stuff on Monday and I want to be FULLY prepared LOL

17 years ago

Is Sulfuric acid -- H2SO4 ----- a carboxylic acid?

17 years ago

Hi this is regarding my earlier post as to whether H2SO4 is a carboxylic acid If it is not a carboxylic acid, what can it be?

17 years ago

I know that benzene is an alkene, but what is Isopropylbenzene -- C9H12 ?

17 years ago

Ethanol(alcohol) -- CH3CH2OH is an alcohol, that I am quite positive about. But what is Fluoroethane -- C2H5F ?

17 years ago

Last question :) 2-iodopropane -- C3H7I What is this classified as? Thanks

17 years ago

My teacher was talking about how if we added nitrogen and phosphorus fertilizers in the ocean, we would help reduce carbon dioxide. I don't understand. How does that work?

16 years ago

Consider a user types a document with a speed of 100 words per minute. Assume that an average word consists of 5 letters and ends by a break which can be a space, new line, TAB, or punctuation, and an average sentence consists of 20 words. Assume that a s...

15 years ago

How are natural resources distributed throughout the world? (a) Most natural resources are found in developed nations. (b) Most natural resources lie beneath the ocean floor. (c) Natural resources are distributed evenly among all nations. (d) Natural reso...

15 years ago

I need help with these problems ASAP: I need help setting these problems up: pleas!! (1)Calculate the volume of 1.87 M NaI that would be needed to precipitate all of the Hg+2 ion from 199 mL of a 1.96 M Hg(NO3)2. The equation for the reaction is 2NaI (aq)...

15 years ago

8. Four major vegetation regions common to both the United States and Canada are (A)tundra, rain forest, ice cap, and desert scrub. (B)forest, desert scrub, savanna, and continental. (C)tundra, forest, grassland, and highlands. (D)ice cap, grassland, fore...

15 years ago

The main landforms of Mexico are the Sierra Madres and the (a) central plateau. (b) isthmus of Panama. (c) Amazon Basin. (d) Andes.

15 years ago

Which of the following statements is NOT true in regard to Brazil's interior plateau? (A) It experiences periods of drought. (B) Its soil is often devastated by heavy rains that cannot penetrate the dry, hard ground. (C) Poverty is prevalent in this regio...

15 years ago

Suppose human activity has caused a 0.1 Fahrenheit increase in global temperatures so far, and that this sift will grow exponentially with a doubling time of 10 years. a. How much will temperatures have risen 50 years from now? b. A politician suggests th...

14 years ago

Magnesium metal reacts with hydrochloric acid to form magnesium chloride and hydrogen gas. Suppose we react an excess of magnesium metal with 13.2 mL of a 3.00 M solution of hydrochloric acid and collect all of the hydrogen in a balloon at 25oC and 1.00 a...

14 years ago

what is inverse of this funtion f(x)=(1 / 3)^x? I think the answer is f-1(x)= log base 1/3 of x, but i know im wrong... please help!!! THANK YOU

14 years ago

Please check my work. Correctly identifying the part of speech of each of the word in the sentence. The new mail carrier finally arrived. The (definite article) new (adjective) mail (noun) carrier (noun) finally (adverb) arrived (past tense verb).

14 years ago

Please check my work. Identify whether each sentence is complex, an exclamation, declarative, or interrogative. 1. Tim likes soup, so Mary bought tomatoes. Complex 2. Oh no! Exclamation 3. Do you want to play in the Garden? Interrogative 4. In the story,...

14 years ago

Please check my work. Identify whether if this sentence is complex, an exclamation, declarative, or interrogative. The car broke down, but a rescuer van arrived within minutes. ----- Complex

14 years ago

Please check my work. Which word is correct? 1. I think (there, their, they're) son is the quarterback of the team. ---> "there" 2. The strom didn't have as much (affect, effect) on our community as it did no others. ---> effect 3. He is much bigger (than...

14 years ago

Please check my work: Proofread the passage looking for grammar, puntuation, and spelling errors. Most students do not like english class. They think think its a waste of there time and energy. An't nobody likes to right papers and take tests anyway? Me a...

14 years ago

How does Limit as delta x approaches 0 = 4x + 2deltax +1 simplify to 4x +1? I'm supposed to find the derivative using the limiting process orig equation: f(x) 2x^2+x-1

14 years ago

the points M(6,-8) and E(8,6) are on a circle with radius 10 units. Determine the equation of the line equidistant from points M and E

13 years ago

The market equilibrium price for coffee beans in Ecuador is $2.75/pound, a price at which growers are unable to make a profit. Due to the lack of profits, many growers have stopped production and the output of coffee beans has fallen from 400 tons per yea...

13 years ago

You are the manager of a California winery. How would you expect the following events to affect the price you receive for a bottle of wine? You may include graphs if they help illustrate your response. a)The price of comparable import wines decreases b)On...

13 years ago

Supplier on-time delivery performance is critical to enabling the buyer’s organization to meet its customer service commitments. Therefore, monitoring supplier delivery times is critical. Based on a great deal of historical data, a manufacturer of persona...

13 years ago

Hello. I'm having difficulty with this question In the diagram, the coefficient of kinetic friction between the 2.00 kg and the 3.00 kg blocks is 0.300. The horizontal surface and the pulleys are frictionless, and the masses are released from rest. (a) Dr...

12 years ago

If the given point is on the terminal arm of an angle A in stadard position. 0 degrees more than or equal too A and less than or equal too 180 degree, find sin A and cos A: a) (6,8) b) (-5,12) Can you tell me how you get it because I do not understand it...

12 years ago

Heyy Jiskha!! I need ur help today:) Hope you will help:D My question is that why is supersaturation unstable... I read the explanations for this on many websites but for some odd reason I just cannot get it to sink in my mind. What does it mean by it is...

12 years ago

Determine two angles between 0°and 360°that have a secant of -4. Round your answers to the nearest degree. There are tw answer 104°( I got this one but there is also 256° I don't have anyidea for this one please explain to me I appreciate your time thanky...

12 years ago

Amplitude of the wave is 0.2m. The time period of the vibration is 0.5secs. Calculate the frequency, velocity and the wave length.

12 years ago

accounting practices within health care organization

12 years ago

A projectile is launched with an initial speed of 80.0m/s at an angle of 40 degrees above the horizontal. The projectile lands on a hillside 3.80s later. Neglect air friction. What is the projectile's velocity at the highest point of its trajectory? What...

11 years ago

discuss the current state of the field of early childhood care and education from your own perspective. In this field, what does it mean to be a professional and what does it mean to be in a profession? Include a component of political analysis in your pa...

11 years ago

What does it mean to be a professional? and what does it mean to be in a profession?

11 years ago

Why is it not ethical if a researcher researches on some people and the people get affected with for example, trouble in speech. What are the two reasons as to why this is not ethical?

10 years ago

Chung-ho is standing on the top of a building that is 135 m talk. The angle of depression to the top of the building next door is 71 degrees. The angle of depression to the basebof the building is 77 degrees. The building are 31 m apart. How talk is the o...

10 years ago

An asymmetrical roof has measurements show in the diagram below. if the vertical supports are each two feet apart, calculate the measure of angle G and the slant heights (lengths x and y) of the roof.

10 years ago

A roller coaster has a track that drops at an angle of depression of 25 degrees from a height of 14.9 m. When it reaches the ground in travels horizontally for 8 m. It then rises at an angle of elevation of 47 degrees to a height of 26.8 m A) What is the...

10 years ago

what is the advantage of sexual reproduction over asexual reproduction

10 years ago

A triangular pyramid has faces that are all equalatetal triangles. Each side length is 16 cm. What is the surface area of the pyramid?

10 years ago

what are 5 examples of the phylum porifera?

10 years ago

'Slow' vs. 'Fast' : give 3 example organisms each

10 years ago

How is lifestyle related to nervous system development?

10 years ago

1 example for each A) Tentacled Mollusk B) 2-shelled Mollusk C) 1-shelled Mollusk D)Clever and smart Mollusk E) Pearl producing Mollusk F) Devoted mother Mollusk G) Land Mollusk H) Dangerous Mollusk I) Sneaky Mollusk J) Herbivore Mollusk K) 38-90!! tentac...

10 years ago

If a gaseous sample contains 74% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C = 7.0 10-4 mol/Latm)?

10 years ago

5 sin theta +12 cos theta = 13. Prove 5 cos theta - 12 sin theta =0.

10 years ago

A meter has a resistance of 75 ohms and gives full-scale deflection when it passes a current of 1.0 mA. How would you adapt the meter to read a) Currents up to 1A b) voltages up to: 5V c) Voltages up to: 100V

9 years ago

A high voltage unit has an internal resistance of 50 mega ohms. On open circuit, the potential difference across its output is 3000 V. When a resistor R is connected across its output, the potential difference at the output falls to 1000 V. Calculate the...

9 years ago

A digital voltmeter with high internal resistance gives a maximum reading of 2.0 V. It is used to determine current by measuring the potential difference across a standard resistor S through which current has passed. What should the resistance of S be to...

9 years ago

Karthi had RS.5000 with him. he lent a part of 12% per annum simple interest and the remaining at 15% per annum. his total annum income was Rs.700.find the sum lent at12% per annum.

9 years ago

The midnight temperature of Delhi in the month of December was 100C If dropped by 40C in the next three hours.What was the temperature after 3hours

9 years ago

Two charges placed at a distance r apart exert force F on each other at what distance will these charges experience same force in medium of dielectric constant K.

9 years ago

Convert in improper fraction 6 5/12

8 years ago

What is the result of c6h5ch2cooh +H^+/KMnO4

8 years ago

In its monthly report, the local animal shelter states that it currently has 24 dogs and 18 cats available for adoption. 8 of the dogs and 6 of the cats are male. If two animals are selected at random, what is the probability that both are female cats?

8 years ago

How many glasses can be filled in 21 cans each of 200 milliliters?

8 years ago

a wheel starts from rest on application of torque which gives it an angular acceleration @=2t^2-t^2 for first two seconds after which @= 0 then find angular velocity of wheel after 4 seconds.

8 years ago

cone is inscribed in the sphere of radius R. Find the cone with maximum lateral surface

7 years ago

The vector sum of two vectors of magnitude 10 units and 15 units can never be A) 28 units B) 22 units C) 18 units D) 8 units

7 years ago

Decimal number of 343/125 without doing actual division

7 years ago

If in the given reaction, 3I 2 + OH- ---> IO3 - + 5I- 2 moles of iodine are taken, then the ratio of iodate and iodide ions formed in the alkaline medium is

7 years ago

ABCD is a parallelogram and X is the mid-point of AB. If area XCD =24cmsquare , then area ABC =?

5 years ago

the life time of a certain kind of mean life of 400 hours and standard deviation of 45 hours. assuming the distribution of life time to be normal, find : 1. the percentage of batteries with a life time of atleast 470 hours 2. the proportion of batteries w...

4 years ago

9/8 equalitive fraction

4 years ago

Oops sorry the equation is: tan x + 1 = 0 P.S Please stay online I have a test tommorow and I really need your amazing help on this stuff :)

17 years ago

Hey John, yes the teacher wont respond to my question so Im trying The Jiskha Homework Help site to see if I can find any help

17 years ago

yes

17 years ago

It does help thanks DrBob Can you help me with another related question? Write the reaction equation for propene producing acetone

17 years ago

Thank you Sir

17 years ago

Is chloroethane an alkane? Thanks

17 years ago

Of the follwoing options, what is Fluoroethane --- C2H5F alkyne alkane alkene alkyl halide primary alcohol secondary alcohol tertiary alcohol ether aldehyde ketone carboxylic acid ester amide primary amine secondary amine tertiary amine

17 years ago

Of the follwoing options, what is a mineral acid? alkyne alkane alkene alkyl halide primary alcohol secondary alcohol tertiary alcohol ether

17 years ago

Sorry there are more options Ketone Aldehyde Amide Primary amine Secondary amine Tertiary amine P.S I have looked up all terms

17 years ago

Therefore cumene is an alkene?

17 years ago

Thanks alot everyone! That really helped.

16 years ago

24/27

15 years ago

3x+3=3 3x=0 x=0/3 x=0

15 years ago

Modernism is a cultural movement that generally includes the progressive art and architecture, music, literature and design which emerged in the decades before 1914.

15 years ago

I think the correct answer is: (d) Natural resources are spread out unevenly around the earth.

15 years ago

THANKS ALOT... I GET IT NOW!!!!!!

14 years ago

The word "mail" is a noun or an adjective in the sentence?

14 years ago

I need to know what part of speech is the word "mail" in the text.

14 years ago

Thank u. Is "mail" a noun or an adjective in the sentence?

14 years ago

Okay. This will be my finally draft. The (definite article) new (adjective) mail (noun) carrier (noun) finally (adverb) arrived (past tense verb. Thank u both Ms Sue & Writeacher.

14 years ago

I got it. The (definite article) new (adjective) mail carier (compound noun) finally (adverb) arrived (past tense verb). Thank u again.

14 years ago

I'm sorry. Please forgive me. Ms . Sue, Please check my work on Wednesday, July 20, 2011 at 9:34am. Thank you.

14 years ago

Thank you Ms. Sue.

14 years ago

Wow! I’m impress, thank you for let me know that.

14 years ago

That’s very nice of you & Writeacher to help me out. I appreciated. Thank you both.

14 years ago

Sorry, I made a mistake for #1, the correct answer is - I think (there, their, they're) son is the quarterback of the team. ---> "there" Question #2. She performed (good, well) on the balance beam. ---> "well" (In this sentence well is an adverb that modi...

14 years ago

Sorry I made the same mistake again for #1 I think (there, their, they're) son is the quarterback of the team. ---> "their" "Their" is a 3rd person pronoun, but in this sentence it used as a possessive adjective. Question #7 The streets surrounding the (c...

14 years ago

Thank you Ms. Sue and Writeacher.

14 years ago

Most students do not like English class. They think it's a waste of their time and energy. Nobody likes to write papers and take tests. Anyway, you and I don't. My friend Johnny knows a lot about grammar. I am always asking him to help me, with my English...

14 years ago

I will add a period at the end of "me" in the last sentence. Thank you Sar and Writeacher! You all have been very helpful.

14 years ago

(x^2 -2)(x^3 - 4x + 9) (x^2) (x^3) = x^5 (x^2) (-4x) = -4x^3 (x^2) (9) = 9x^2 (-2) (x^3) = -2x^3 (-2) (-4x) = 8x (-2) (9) = 18 Now, we add the right-hand sides of the equeal sign. x^5 - 4x^3 - 2x^3 + 9x^2 + 8x - 18 x^5 - 6x^3 + 9x^2 + 8x - 18 There I did...

14 years ago

921 and 129. 9+2+1=12 and 1+2+9=12

13 years ago

I though that the entire system goes through uniform acceleration.

12 years ago

I don'tquite understand we never learned y and r stuff. We just started this..the chapter is called Angles of rotation. Andwhere did u get the 10 from... and um sorry for bothering you but can u help me do one because there are many..:( Thanks I greatly a...

12 years ago

Ok thxxx:)

12 years ago

Oh Sorry I think you couldn't see my question haha!! SO how should I "structure" my thesis???

11 years ago

COD = 44 degree ( Vertically opposite angles) AOB = 180 - 44 = 136 ( linear Pair) AOB = COD = 135 (VERTICALLY OPPOSITE ANGLES)

9 years ago

6 5/12=

8 years ago

I don't know please help me

8 years ago

3/5 = 0.6 2/3 = 0.6667 Therefore, 0.3, 0.35, 3/5, 0.66, 2/3

8 years ago

321.51gm

8 years ago

The ranch is 80 meter wide so 80 meter is its breadth and it is 450 meter long so its length is 450 meter Area of rectangle=length×breadth Length=450meter Breadth=80meter 450×80=36000 sq.m Ans=36000sq.m

8 years ago

There is no answer for my qn

6 years ago

140

6 years ago

No clarity

6 years ago

How is the present and future represented in the poem past present future

6 years ago

As in an earlier exercise, we assume that the random variables Θ and X are described by a joint PDF which is uniform on the triangular set defined by the constraints 0≤x≤1 , 0≤θ≤x . a) Find an expression for the conditional mean squared error of the LMS e...

5 years ago

a) We saw that the conditional PDF of Θ is uniform on the range [0,x] . Hence, the conditional variance is x2/12 . b) This is given by the integral of the conditional variance, weighted by the PDF of X . The PDF of X is found using the formula for going f...

5 years ago

a) x^2/2 b)1/24

5 years ago

Doubt in the book

4 years ago

3 by 4 × 712 - 178 = 534 apples 534 - 178 × 1by 3 = 178

4 years ago

Yes. I agree with lakshmi

4 years ago

Nthing

4 years ago

Accept two numbers and display the HCF

3 years ago

It was very bad

3 years ago