Sunday

February 1, 2015

February 1, 2015

Total # Posts: 235

**Math/Trig**

Solve: sin2 x = cos2 x for 0 degrees is less than or equal to x is less than 360 degrees.
*January 20, 2011*

**Math/Trig**

Solve: 2 sin x - 1 = 0 for 0 degrees is less than or equal to x is less than 360 degrees.
*January 20, 2011*

**Math/Trig**

Solve: 2 cos2 x - 3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi.
*January 20, 2011*

**Math/Trig**

Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer to the nearest tenth.
*January 20, 2011*

**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.
*January 20, 2011*

**Math**

Area
*January 17, 2011*

**Math**

How do you find the height of a triangle ?
*January 17, 2011*

**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.
*January 17, 2011*

**Math/Trig**

it says to find the radius
*January 17, 2011*

**Math/Trig**

Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer to the nearest tenth.
*January 17, 2011*

**Math/Trig**

Find the area of the sector, given a central angle of 55degrees and a radius of 5.7 in. Round your answer to the nearest tenth.
*January 16, 2011*

**Math/Trig**

Find the length of the intercepted arc with radius 2.5 cm and a central angle of 95degrees. Round your answer to the nearest tenth.
*January 16, 2011*

**Math/Trig**

Find the angular velocity of an object, rotating on a circular object, moving through 9.7 revolutions in 11 seconds. Express your answer in rad/sec and round your answer to the nearest tenth.
*January 14, 2011*

**Math/Trigonometry**

radians please
*January 14, 2011*

**Math/Trigonometry**

What is the angular displacement of 1.6 revolutions? Round to the nearest tenth.
*January 14, 2011*

**Math/Trig**

The following is a table for the maximum temperature per month, for Boulder, CO Month|° F Jan:45.1 Feb:48.2 Mar:53.8 Apr:62.8 June:71.6 July:81.5 Aug:85.1 Sept:76.6 Oct:66.7 Nov:52.9 Dec45.5 Find the sinusoidal function that models this data. How do I do this ?
*January 14, 2011*

**Trigonometry**

Using the same equation from problem 1, what is the average temperature in Atlanta, GA, for the month of June? equation from #1 is y = 18.25 sin(pi/6 t - 2.09) + 61.15 where t is the time in months and January is t = 1.
*January 14, 2011*

**Math/Trig**

Thankyou!
*January 14, 2011*

**Math/Trig**

The average temperature, in °F, for Atlanta, GA is modeled by the sinusoidal function y = 18.25 sin(pi/6 t - 2.09) + 61.15 where t is the time in months and January is t = 1. What is the average temperature for the month of February? How do I do this problem ? Please Help
*January 14, 2011*

**Trigonometry/ Please Help**

Given sine of alpha=2/3 and cosine of alpha is less than zero, find the exact value of the other five trigonometric functions.
*January 13, 2011*

**Trigonometry**

Verify the identity: cos x + sin x tan x = sec x.
*January 13, 2011*

**Trigonometry/ Please Help**

Find two exact values of sin(cosˉ¹√5/6)
*January 13, 2011*

**Trigonometry**

Given sinθ=0.76, find θ in degrees to the nearest tenth.
*January 13, 2011*

**Math**

If sinθ=1/5 and θis in Quadrant I, find the exact value of 2θ.
*January 13, 2011*

**Math/Trigonometry**

Thankyouu
*January 13, 2011*

**Math/Trigonometry**

Find the exact value of cosθ if sinθ=-2/3, and θis in standard position with its terminal side in Quadrant IV.
*January 13, 2011*

**Trigonometry/ Please Help**

Thankyouuu!
*January 13, 2011*

**Trigonometry/ Please Help**

The average temperature, in °F, of City B is given by the equation:y=19.5sin(pi/6t-2.06)+62 , where t is the time in months and t = 1 corresponds to January. What is the average temperature in April? Round your answer to the nearest hundredth.
*January 13, 2011*

**math**

The rhombus is a parallelogram with four congruent sides. A square is a special case of a rhombus.
*January 13, 2011*

**math**

yes 26x90=2340
*January 13, 2011*

**math**

4, 6, 8, 9, 10, 12, 14, 15, 16, 18
*January 12, 2011*

**Math/Trigonometry**

Convert 2pi/3 radians into degrees.
*January 12, 2011*

**Help please Trig**

Given sinθ=0.76, find θ in degrees to the nearest tenth.
*January 12, 2011*

**Math/Trigonometry**

1. Solve: 2 cos² x - 3 cos x + 1 = 0 for 0 ≤ x < 2pi. 2. Solve: 2 sin x - 1 = 0 for 0° ≤ x < 360° 3. Solve: sin² x = cos² x for 0° ≤ x < 360° 4. Solve: sin x - 2sin x cos x = 0 for 0 ≤ x < 2p
*January 12, 2011*

**Math/Trig**

Find the length of the intercepted arc, given a central angle of 3pi/5 and a radius of 4.5 cm. Round your answer to the nearest tenth.
*January 12, 2011*

**Trigonometry**

Solve △ABC, given a = 4.4, b = 9.1, and c = 5.7. Round your answer to the nearest tenth.
*January 12, 2011*

**Trigonometry**

Find the area of a sector, given a central angle of 240° and a radius of 15 cm. Round your answer to the nearest tenth please.
*January 12, 2011*

**Trigonometry**

Determine sin x - tan x - sin x=0 for 0 ≤ x < 360°
*January 12, 2011*

**math math math math**

46
*January 10, 2011*

**Math**

3/2(4x-6)-x(3-x)=1/3x(3x-6)
*December 17, 2010*

**social studies**

how was the writing of the grito de dolores similar to the writing of the petition by the first continental congress
*December 16, 2010*

**6th grade**

does f=7.1
*December 8, 2010*

**6th grade**

0.4/2.4=f/6 Dont know how to solve please explain so i can know thank u
*December 8, 2010*

**physical**

in volley ball is it an illegal hit if you hit it underhand while ball is in play
*December 6, 2010*

**math**

Thank you I didnt think I could but just wanted to be sure.
*December 6, 2010*

**math**

Write at least two equivalent fractions for each whole number Can I do this with the number zero?
*December 6, 2010*

**4th grade**

you have to see how many minutes are in a year [hard way] you take that number and multiply it by 25
*December 6, 2010*

**5th grade**

isosceles triangle
*December 2, 2010*

**2nd grade**

ten=1 ones=2
*November 29, 2010*

**Economics**

what is meant by the term utility and how does it relate to purposeful behavior?
*November 22, 2010*

**PHYSICS/ GRAVITATIONAL CONSTANT**

I DID THAT BUT THE ANSWER IS WRONG. IDON'T KNOW WHY
*November 12, 2010*

**PHYSICS/ GRAVITATIONAL CONSTANT**

Three masses are arranged in the (x,y) plane. The X and Y units are meters 4kg at (-1,5 3kg at (1,1) 5kg at (0,0) What is the magnitude of theresulting force on the 5kg mass at the origin? The universal gravitational constant is 6.673e-11 N*m^2/kg^2. Answer in units of N.
*November 12, 2010*

**chemistry**

A 2.85 g sample of an unknown chlorofluorocarbon is decomposed and produces 558 mL of chlorine gas at a pressure of 756 mmHg and a temperature of 298 K.What is the percent chlorine (by mass) in the unknown chlorofluorocarbon?
*November 8, 2010*

**Algebra**

I know the answer to the question, but don't know how to write it out. What is the percentage of increase from 58,000 to 89,000.
*October 31, 2010*

**physics**

Can an adult male be rescued from a fall by tying a rope to a car's axle?
*October 9, 2010*

**physics**

A car starts from rest and accelerates uniformly over a time of 6.5 seconds for a distance of 150 m. Determine the acceleration of the car.
*October 7, 2010*

**science **

what events or objects were studied in Hubble's paper A RELATION BETWEEN DISTANCE AND RADIAL VELOCITY AMONG EXTRA-GALACTIC NEBULAE?
*October 3, 2010*

**physics**

A deep mountain valley is separated by two vertical cliffs. One cliff is 600 meters high and the other is 400 meters high. A cable car runs from the foot of each cliff to the top of the other cliff. At what height above the ground do the two cable cars cross? Be sure to draw a...
*September 19, 2010*

**Physics/math**

A deep mountain valley is separated by two vertical cliffs. One cliff is 600 meters high and the other is 400 meters high. A cable car runs from the foot of each cliff to the top of the other cliff. At what height above the ground do the two cable cars cross? Be sure to draw a...
*September 18, 2010*

**7th grade math**

Write and simplify an expression for the perimeter of the triangle. side A)3x, side B) 5x-4 and side C)2x+5. Thank you!
*September 12, 2010*

**7th grade Math**

Write and simplify an expression for the perimeter of the rectangle. side A=x+6 Side B=4x-5. Thank you!
*September 12, 2010*

**7th grade**

Write and simplify an expression for the perimeter of the triangle. side A-4x+3, side B-6X and side C-3x-1. Thank you!
*September 12, 2010*

**9th grade**

Explain how to workbackwardfrom a constant second diffrence to extend the following sequence 1,6,16,31,51,76,...
*September 6, 2010*

**math**

write an example of the associative proerty of addition.
*August 25, 2010*

**Statistics**

Hello...I need help with the following question, I have the answer but am not sure how to solve it. Any help would be greatly appreciated. Thank you What is the 'z' value assuming the normal distribution applies in a right-tailed test within area equal to .01? Answer: ...
*July 25, 2010*

**college algebra**

how to solve this problem. Completing the square. Find the value of a such that u^2-8u+a is a perfect square
*July 1, 2010*

**Criminal justice system 250**

Why is it important for a security professional to know specifics about the particular target environment to which they are assigned? How can experienced security professionals prepare themselves for challenges and opportunities they have never encountered before? Is it ...
*May 13, 2010*

**trig**

verify: cot(-t)+csc(-t)/sin(-t)=1/1-cos(t)
*May 3, 2010*

**Statistics - Is it from Normal Distribution**

I think I know how to answer the following question IF I assume that the distribution is normal - however, since the question doesn't say that it comes from a normal distribution - should I proceed differently? Question reads: The mean IQ among members of a club is 118 ...
*April 28, 2010*

**Statistics**

The applet is great! But I wonder, given the information I have, can I assume that the distribution is normal? (The mean IQ among members of a club is 118 with a standard deviation of 9.46. What percentage of the members had IQ scores of 115 or higher?) If it isn't normal...
*April 28, 2010*

**Statistics**

The mean IQ among members of a club is 118 with a standard deviation of 9.46. What percentage of the members had IQ scores of 115 or higher?
*April 28, 2010*

**science**

Follow on the Sall Sue question earlier. What frequency would be required for sally and her cheerful and hard-wroking partner to produce the standing wave with three nodes. Identify the steps.
*April 23, 2010*

**physics**

Sally and a partner holds the ends of a spring 4 meters apart. There are 5 nodes in the standing wave produced. Sally moves her hand from the rest position back and forth along the floor 20 times in 4 seconds. Determine the following: Wavelenght of wave sally sue sent ...
*April 22, 2010*

**economics**

Sally and a partner holds the ends of a spring 4 meters apart. There are 5 nodes in the standing wave produced. Sally moves her hand from the rest position back and forth along the floor 20 times in 4 seconds. Determine the following: Wavelenght of wave sally sue sent ...
*April 22, 2010*

**physics help**

remember that the boat moves as well...the dog is a system and the boat is a system
*March 26, 2010*

**Physics**

I'm having trouble understanding which formula to use to answer this question. What is the apparent weight of an astronaut weighing 77kg shortly after blasting off in a roacket at an upward acceleration of 80/meters per second squared? I know he/she will feel about 3 times...
*January 31, 2010*

**Science**

I can find anything on these questions I need to answer to pass year nine. My teacher said he doesn't matter where the answers come from as long as I pass and don't have to repeat. PLEASE HELP ME! Due tomorrow! 1. List 5 latest developments in sports footwear. Describe...
*December 3, 2009*

**high school**

alkali is a metal not encluding hydrogen and it is very reactive metals
*September 21, 2009*

**math**

in subtraction: what does it mean to front-end estimation when you subtract 59 from 16
*September 17, 2009*

**social studies**

I need help on finding information on the Patriot (American Revolution)about reports on battles won and reports on battle lost.
*November 16, 2008*

**statistics**

7.62
*November 6, 2008*

**Limits**

Find the limit of sin4x/(sqrt(x)) as it approaches positive infinity.
*October 23, 2008*

**Math**

the area of a cirlce is 460ydsq. Find the radiusbof the circle.
*October 13, 2008*

**Chemistry**

The symbol is supposed to represent the change in temperature for the solution.
*October 13, 2008*

**Chemistry**

I forgot to add that the Hrxn is -112.3.
*October 13, 2008*

**Chemistry**

I need help with this problem: 50.0 mL of 4.4 g/L AgNO3 is added to a coffee-cup calorimeter containing 50.0 mL of 4.4 g/L NaI, with both solutions at 25Â°C. a).What is Î”Tsoln (assume the volumes are additive and the solution has the density and specific ...
*October 13, 2008*

**Math/Algebra**

if you add one number divisible by n and one number not divisble by n will the result be divisible by n? and.. if you add two numbers not divisible by n will the reult be dvisible by n? explain.
*October 6, 2008*

**math**

when doe it make the most sense to use a fraction?
*September 9, 2008*

**enviromental science**

If conservation and preservation are bascically the same then why do we have two different groups that are opposing and not working together? Or is the problem that conservationist will allow change and preservationist will not?
*July 2, 2008*

**enviromental science**

What exactly are the differances of conservation and preservation?
*July 2, 2008*

**English**

I can't thank you enough for taking the time to read through this and help me out the way that you did. Thank you very much! CJ
*March 29, 2008*

**English**

I will just post my essay here if that is ok? I had to write an essay on a childhood memory. Thank you again for checking this, I truly appreciate it. In December of 1979, I was six years old and Christmas day was arriving soon. It was almost a ritual on every Christmas Eve my...
*March 29, 2008*

**English**

Oh my ...that is fantastic....thank you so much. Should I post it in this post or a new one?
*March 29, 2008*

**English**

I am just curious if you know of any one I could submit an English Essay to. It is less than one page and I need someone to check grammar, spelling etc.... I didn't think this site would accept something like that but was wondering if you know of a website that could do ...
*March 29, 2008*

**math**

Simplify: 35xy4z2 _______ 7y2z
*March 11, 2008*

**algebra 1(Polynomials)**

Simplify: (5x2y3z)(6xyz2)
*March 11, 2008*

**algebra**

If perimeter of an isoceles triangle is 37 inches, and the lengths of both sides are 6 inches less than 3 times the length of the base, what is the length of all three sides?
*January 29, 2008*

**financial management**

sorry it is supposed to be 8.0% fixed interest rate.
*January 13, 2008*

**financial management**

suppose you purchase a home for $150,000.and obtain a 90% mortgage loan, 30 yr. maturity, at a fixed annual interest rate of 80% with deferred monthly payments. What is the monthly payment for principal and interest on this loan?
*January 13, 2008*

**finance management**

i think you take $300.times 7% times 5 yrs.
*January 10, 2008*

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