# Posts by guru

Total # Posts: 22

**maths in ggv 5standards **

I am a composite number between 20 and 30.the digit in my ones place is four times the digit in my tens place

**math**

3?45-5/2?1/3+4?3

**English**

Error correction in we sentence "My friend house us big red and expensive"

**Math**

Try meditation.

**business maths**

Find the point of intersection of the lines 3x+2y=15and7x-3y=4

**Math**

The answer given above is wrong. The formula used is incorrect.

**chm**

Calculate the theoretical amounts of 0.1000 M NaOH titrant used to titrate 0.8 and 0.9 g KHP

**Science**

just multiply the concentration of Bx2=1.10Mx2L=2.2moles and then subtract the moles of A from calculated moles of B 5.00-2.2=2.8moles

**Accounting**

Step 1: Determine amount of dividends that preferred shareholders are entitled to: 5000*100*5% = 25,000 Step 2: Determine amount of earnings left over for common shareholders after the payment of preferred dividends: 105,000-25,000 = 80,000. Step 3: Use the EPS formula to ...

**Chemistry**

it depends on whether the reactant or product is solid or liquid. If it's solid you don't suppose to include in finding equilibrium concentration and the eq. will look like Kc=[B][C]

**Maths**

In a regular polygon,each interior angle doubles its corresponding exterior angle,find the number of side of the polygon?

**Physical Science**

a=v-u/t where a, is the acceleration,v the final velocity,u the initial velocity and t the time.=a=x ,v=15ms`,u=0 and t=10 therefore from a=u-v/t you have a=15-0/10=1.5ms`2

**chemistry**

what is the answer?

**math**

12 pounds of A grade coffee and 8 pounds of B grade coffee.

**Heat Transfer**

A fin 30 cm long & 10mm diameters throughout is made of steel alloy of thermal conductivity 43 W/m-deg. the fin attached to a plane heated wall at 200 deg.C temp. extends into surroundings at 25 deg.C.& Unit surface conductance of 120W/m^2-deg. Workout the heat flow rate from ...

**biology**

1. what is the function of the menstrual cycle? 2. Trace the path of a sperm from the male body? 3. Examine the two small lungs found on either side of the heart? Describe their size and function?

**math**

The length of the fence of a trapezium-shaped field ABCD is 130m and side AB is perpendicular to each of the parallel sides AD and Bc.if BC=54m,CD=19m and AD=42m,find the area of the field.

**finite math**

Suppose a state lottery prize of $2 million is to be paid in 20 payments of $100,000 each at the end of each of the next 20 years. If money is worth 9%, compounded annually, what is the present value of the prize?

**chemistry**

C.0.31M

**math**

Kwan has modeled a number that is less than 999. His model has twice as many 100-blocks as 10-blocks. It has twice as many 10-blocks as 1-blocks. What is the number?

**physic**

T = time/oscillations = 36/10 = 3.6s f = 1/T = 1/3.6 = .278 Angular f = 2Pi/T = 2Pi/3.6 = 1.74 X (amplitude) = total distance/2 = (50cm - 3cm)/2 = 23.5 cm or .235 m T = (2PiX)/Vmax or Vmax = (2PiX)/T = (2Pi0.235)/3.6 = .410 m/s

**science**

Propose a method to find the specific heat of sodium which reacts with water Two methods to think about. Use a liquid with which Na doesn't react. OR, use a weighed amount of Na metal to react with water. Measure T of the water before addition of Na and after adding Na. ...