Sunday

December 4, 2016
Total # Posts: 58

**math- Trigonometry **

If cos degree equals to 0.8641 What is Sin degree? I have no idea how to find this. Please help me. I got help from two people, but I'm not getting the answer and how they got the numbers either. Someone says: cos^2+sin^2=1 sinDegree=sqrt(1-cos^...

*November 5, 2016*

**math- Trigonometry **

If cos degree equals to 0.8641 What is Sin degree? I have no idea how to find this. Please help me. Thank you

*November 4, 2016*

**math**

SA= ?rs+?r^2 417?= ?3s+?3^2 1310.0044137=?3s+?3^2 Divide by ? 417 divide by ? 132.7352225= 3s+3^2 Now I don't know what to do

*November 1, 2016*

**math **

If a cone has a Surface Area of 417? and a diameter of 6 determine its slant height.

*November 1, 2016*

**number magic(math)**

Paper draw rectangle with perimeter 12cm. 1. How many rectangle could you draw?

*July 9, 2016*

**physics**

Give two examples to show how physics help in understanding the concept of evolution, biological systems of living organisms.

*June 10, 2016*

**Maths**

How many silver coins, 2cm in diameter and of thickness 2 mm, must be melted to form a showpiece in the form of a frustum of a cone having height 9 cm and radii of the outer circular ends as 5cm and 3cm?

*April 5, 2016*

**Maths**

Two persons are on opposite sides of a tower. They measure that the angle of elevation of the top of the tower are 30°and 45°respectively. If the height of the tower is 50metres, find the distance between the two persons.

*April 5, 2016*

**physics**

which law of chemical combination is illustrated by the fact that 168g Fe reacts with 72g H2o to form 232g Fe3O4 and8g H2

*December 6, 2015*

**physics**

A proton with charge mass ratio of 108 C/kg is moving in a circular orbit in a uniform magnetic field of 0.5T .Calculate the frequency of revolution.

*August 8, 2015*

**math**

solve by quadratics formula 10x^2-1/x=3send answer fast

*June 28, 2015*

**math **

solve by quadratic formula ;10x^-1/x=3

*June 28, 2015*

**math**

solve by completing square method 16x^2-24x-13=0

*June 28, 2015*

**Business Economics**

What subsidies and welfare payments is the south african government providing and to whom ?

*May 4, 2015*

**math vectors**

If Vector a = (2, 2k), Vector b = (4, -k), are perpendicular, solve for k with solutions?

*February 22, 2015*

**Math 10 aw**

george is in a hot air balloon that is 125 metres high. the angle of elevation from a house below, to the balloon is 18 degrees. how far is george from the house

*January 7, 2015*

**science**

on the moon where g=1.62m/s2 would the pendulum clock on the moon run faster or slower

*October 27, 2014*

**buisness statics**

Mean yearly salary of employes of a company wasRs20,000.mean yearly sakaries of male and female employes were Rs 20,800 and 16,800.find out the percentage of male and female employed by the company??b

*July 29, 2014*

**chemistry**

Balance the following equation by partial equation method:- P4 + HNO3= H3PO4 + NO2 + H2O

*May 27, 2014*

**Social Studies **

what are some advantages that homo sapiens had over neanderthals?

*September 26, 2013*

**Global history**

How did the use of machines brings about a major change in the lives of people in great people?

*July 19, 2013*

**Math **

1/16x+1/4=1/2

*July 16, 2013*

**science**

in which direction are nearly all galaxies moving relative to earth

*May 16, 2013*

**Math **

What percent of runners completed the time trial between 52.0and 53.9 seconds?

*May 16, 2013*

**maths**

if n is any integer ,then in is (a) i,(b) 1,-1 (c) i,-i (d) 1,-1,i,-i

*April 12, 2013*

**Math**

Plz help me tmrw my test

*January 9, 2013*

**Math**

Plz help me Sanjay borrowed twice the money browed by alkesh at the same rate of intrest of 12% per anum for 4 years.if alkesh paid rs.72000 less than the intrest paid by sanjay,find the money borowed by them.

*January 9, 2013*

**Math**

Plz reply soon tmrw my test

*January 9, 2013*

**Math**

Plz help me On what sum will the C.I at 10% per anum for 3year compounded anually be rs331?

*January 9, 2013*

**Math**

Plz reply me as soon as bcz tmrw my test

*January 9, 2013*

**Math**

Plz help me to solve this Find the time in which an amount of rs.6250 amount to rs.6760 at 4% per annum,if the intrest is compounded anually.

*January 9, 2013*

**Math**

Bt its ans is 8year

*January 9, 2013*

**Math**

Plz help me to solve In how many years will the money deposited in a bank double itself,if the rate of intrest 12 1/2% per annum?

*January 9, 2013*

**Math**

Plz help me as soon as posible

*January 9, 2013*

**Math**

Plz give me solution The c.p of 13 chairs is the same as the s.p of 18 chairs.find the gain or loss %

*January 9, 2013*

**Math**

Thank you ..

*January 9, 2013*

**Math**

Plz help me to solve this question A dealer buys a sofa set for rs24000.at what price must he mark it so that after allowing a discount of 20%,he still makes a profit of 30%

*January 9, 2013*

**Math**

Thank you..

*January 9, 2013*

**Math**

Plz help me to solve this question The distance between two stations A & B is 230km.Two motorcyclistr start simultaneously from A&B in opposite directions and the distance between them after 3hours becomes 20km.if the speed of one motorcyclist is 10km,hr less than that of the ...

*January 9, 2013*

**Maths**

Plz help me

*January 9, 2013*

**Maths**

Can u tell me Bt its ans is 9 1/2%

*January 9, 2013*

**Maths**

This is math question plz tell how to solve it What percent is 95paise of rs10

*January 9, 2013*

**Maths**

Ok thanx

*January 9, 2013*

**Maths**

Can u tell me plz how is obtained 1/8

*January 9, 2013*

**Maths**

Plz give solution as soon as possible What number will be obtained on decreasing 240 by 25/2%

*January 9, 2013*

**b.c.m school**

A 5.0-kg object moves on a horizontal frictionless surface under the influence of a spring with force constant 10 3 N/m. The object is displaced 50 cm and given an initial velocity of 10 m/s back toward the equilibrium position. (a) What is the velocity of the motion? (b) How ...

*December 28, 2012*

**maths **

A Toy is in the form of a hemisphere surmounted by a right circular cone of the same base radius as that of the hemisphere .If the radius of base of the cone is 21 cm and its volume is 2/3 of the volume of hemisphere calculate the height of cine and surface area of the toy.

*December 4, 2012*

**maths**

hey I confused

*December 3, 2012*

**Chemistry**

When a mixture of 10 moles of SO2 and 15 moles of O2 was passed over a catalyst, 10 moles of SO3 was formed. how many moles of SO2 and O2 did not enter into combination?

*June 22, 2012*

**maths**

let f(x,y)=sqrt (1-x^2-y^2) where x^2+y^2 <1. (positive sqrt) a.) what is the graph of f in geometric terms? b.) find the equation of the tangent plane to the graph (surface) at a point (x,y) with x^2 +y^2 <1

*February 22, 2012*

**V/CV OR VC/V PATTERN**

this is so freakin hard

*November 29, 2011*

**geometry**

the answer can be 144 deg and 216 deg

*April 21, 2011*

**Physics**

A 0.097 kg cup falls from the kitchen shelf and shatters on the ceramic tile floor. Assume that the maximum kinetic energy obtained by the cup is 2.6 J and that air resistance is negligible. Calculate the cup's maximum speed

*April 9, 2011*

**Chemistry**

90 Th 221 ===> 89 Ac 221+ e+

*December 4, 2010*

**Anatomy & Physiology**

cerebellum

*September 3, 2010*

**Science/ Biology 8**

The question is: "If you shine a flashlight in a dark room and sprinkle talcum powder in front of the flashlight, what property of light does it show?"

*April 24, 2010*

**french**

essay on mon saison favori

*December 18, 2009*

**math...help please!**

okay rebekka i don't get this question it says how many days will it take you to spend $i 000 000,if each day you spend each amount? $ioo oo $io ooo $1000 $100 $10

*October 2, 2007*

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