# Posts by sk

Total # Posts: 46

**Algebra**

An electrician charges a customer $260 for 4 hours. He charges one customer $150 for 2 hours. How much does he charge for his service fee, x, and his hourly charge, y, to his customers? Thank you!

*February 14, 2017*

**Organic Chemistry**

I honestly can't figure out how to draw this structure and it's especially difficult for online homework. I've used up 2 tries and only have one more left! Can someone please help? Thank you so much! CH3C?C(CH2)3C(CH3)3

*January 21, 2017*

**physic**

Time of flight formula =2×100/9.8 =20.40s Range formula =100×100÷9.8 =1020.4 =10.2m

*January 14, 2017*

**math**

how many stemps that 1.5*1.5 will fit on pieces of paper that 9*12 inch?

*January 7, 2017*

**Maths**

Two trains are running, on separate tracks, round a model railway layout. One completes a circuit every 40 seconds and the other every 55seconds. The trains start together at the station. How long, in minutes and seconds, will it be before they are at the tation together again?

*September 19, 2016*

**SOCIAL STUDIES**

shiites are non muslim

*May 16, 2016*

**physic**

A 2000 N sled is pulled along a horizontal surface with a constant force by means of a rope that makes an angle of 30.0o with the horizontal. If the tension in the rope is 500 N and there is 100 N of frictional force between the sled and the surface, find the work done on the ...

*May 8, 2016*

**Biology**

MEIOSIS 1)name the process unique to meiosis that occurs during bivalent formation that may increase genetic diversity? 2)how are sister chromatic made and what is the structure that holds them together? 3)what do we call package of genetic information (DNA), encoding a ...

*February 22, 2016*

**US history**

although the two candidates differed in their political ideologies the election of 1840 remained relatively civil and polite. True or false

*November 7, 2015*

**science**

an automobile of mass 1800kg takes a turn of radius 270m. If the force on the tyres to maintain the motion along the curve is not to exceed 630n, the limiting speed of the vehicle assuming no banking will be

*August 23, 2015*

**mathis **

How many tiles that are 12 inches by 18 inches will be needed to tile a floor that is 15 feet wide and 20 feet long?

*September 30, 2014*

**math**

if angle A contains 1/2x and angle B contains 1/2(180-x) are the angles A and B supplementary, complementary, or neither

*September 24, 2014*

**statistics**

Is there an answer to this

*September 2, 2014*

**maths**

This answer is wrong

*October 8, 2013*

**chemistry**

What is the final pressure gas sample that is subjected to a temperature change from 22.0 C to 30.0 C and a volume change from 85.4 L to 37.0 L with an initial pressure 105 kPa?

*April 30, 2013*

**7th grade science**

haha

*November 18, 2012*

**science**

It has come to my attention that you have violated the Honor Code of the class. Your credentials on the site have been removed. Thank you for your time.

*November 17, 2012*

**math**

Find the volume generated by rotating the area between y = cos( 3 x ) and the x axis from x = 0 to x = π/ 12 around the x axis

*September 29, 2011*

**physics**

A man steps on his bathroom scale and obtains a reading of 243 lb. The spring in the scale is compressed by a displacement of -0.0480 inches. Calculate the value of its spring constant in (a) pounds per inch (b) newtons per meter.

*February 24, 2011*

**physics**

A student applies an upward force of 56 N to a 5.6-kg physics textbook. Find the book’s acceleration (positive for up, negative for down). answer in miles/seconds squared.

*February 24, 2011*

**MATHS,7TH CLASS**

Here, area=30 Ad=4.6

*February 19, 2011*

**physics**

pls show answers and work with the questions i have posted.

*December 22, 2010*

**physics**

A juggler throws a ball from height of 0.950 m with a vertical velocity of +4.25 m/s and misses it on the way down. What is its velocity when it hits the ground?

*December 22, 2010*

**physics**

Sam tosses a ball horizontally off a footbridge at 3.1 m/s. How much time passes after he releases it until its speed doubles?

*December 22, 2010*

**trig**

Use the double angle formula to verify the identity cotxsin2x=1+cos2x

*November 28, 2010*

**Trig**

Find the value of tangent of angle A, given cos2A = 4/5, and A terminates in quadrant 2

*November 28, 2010*

**Trig**

find sin(s+t), given that sin t=1/3, t in quadrant 2, and cos s = -2/5, s in quadrant 3

*November 28, 2010*

**Trig**

the angle of depression from the top of a building to a point on the ground is 32degrees30', how far is the point of the ground from the top of building if the building is 252m high?

*November 28, 2010*

**Trig**

The angle of depression from the top of the building to a point on the ground is 29degrees30', the point of the ground is 36 meters from the top of the building. Find the height of the building

*November 28, 2010*

**Trig**

A plane flies 1.3 hr at 100mph on a bearing of N40degreesE. It then turns and flies 1.5hr at the same speed on a bearing of S50degreesE. How far is the plane from its starting point?

*November 28, 2010*

**Trig**

A ship leaves its homeport and sails on a bearing of N28degrees10'E. Another ship leaves the same port at the same time and sails on a bearing of S61degrees50'E. If the first ship sails at 24.0 mph and second sails at 28mph, find the distance between the two ships ...

*November 28, 2010*

**Trig**

assume a pulley has a radius of 12.96 cm. If it takes 18 seconds for 56 cm of belt to go around the pulley, find the angular velocity in radians per seconds

*November 28, 2010*

**Precalc**

In 1992, the average cost of a ticket on a privately-owned airline was $145. This amount has increased by approximately $51 yearly. How much should you expect to pay for a ticket on this airline in the year 2005?

*November 14, 2010*

**math**

I got 738

*September 1, 2010*

**5th grade Math**

Thank you. I never thought about looking at them like money.

*August 25, 2010*

**5th grade Math**

Having problems with less than/greater than decimals. Wanted to double check some answers. a)0.5_1.0 My Answer is < b)3.2_3.02 My answer > c)4.83_4.8 My answer < d)6.25_6.4 My answer < e)0.7_0.07 My Answer >

*August 25, 2010*

**physics 12- dynamics**

A 5kg block slides down an incline of 25

*March 23, 2010*

**physic12-dymanics**

A 5kg block slides down an incline of 25 degrees to the horizontal at a constant speed. a) what is the net force on the block? b) what is the magnitude of the friction force acting on the block? c) If friction was negligible and the block was accelerating down , what would be ...

*March 23, 2010*

**physic12-dymanics**

A block is launched up the incline(coefficient of friction is 0.3) with an initial speed of 12m/s. What is the maxximum displacement of the block up the incline?

*March 23, 2010*

**Ethics**

What is “institutional discrimination?” Give an example

*May 14, 2009*

**Chemistry**

How would you purify decanoic acid contaminated with biphenyl? what method and solvent.Please help me

*November 11, 2007*

**chemistry**

Large atom goes on equatorial becasue equatorial is more stable than axial. You always want to have stable shape.

*November 11, 2007*

**Ethics**

what is the good of morality This site will give you some good ideas about that topic. http://en.wikipedia.org/wiki/Morality Morality is a guide; it helps us to decide what is "good" and what is "evil." In other words, it helps us to choose between those ...

*November 16, 2006*

**Ethics in business**

What do you think is the best way of doing business ethics and why 1) all transactions are above board: nothing under the table. 2) Honesty in all transactions. No misleading advertising, or terms. 3) Follow the law, if it conflicts with the two above, then state it publicly ...

*November 16, 2006*

- Pages:
**1**