胡雪8°

Find the distance between point G(5,3) and H(-6,4)., 10 points awarded for time thank you!?

Solve for X^3 -x=1/4(x^2 -1) Thanks?

Differentiation Please can someone help me step by step with this sum Find dy/dx from first principles for 1) y=3x^2 + 1?

The height (H) of the ball thrown into the air with an initial velocity of 9.8 m/s from a height of 2 m above the ground is given by the..?

Help with a few chem questions?

Complex locus question !?

What is the factored form of x^3+x^2-5x+3 if (x-1) is a factor ?

Factor: 8a^3+(a+b)^3?

what is the polarity of the bond : CO2?

How to set up this combining functions problem?

What is the slope of y=311.111x+1533.333? It is the equation of a scatterplot?

Enough of a monoprotic acid is dissolved in water to produce a 0.0178 M solution. The resulting pH is 2.53. Calculate the Ka for the acid.?

Why does ferrous oxide is more basic than ferric Oxide?

How many mL of a 0.38 mol H2SO4 solution are needed to neutralize 280 mL of a 0.98 mol NaOH? Please explain how to work it out :(?

Which of the following gases is NOT diatomic?

In the dehydration of 2-methylcyclohexanol, Why was 2-methylcyclohexene not mentioned as a possible product?

Chemistry moles help?

A stone is tossed from a bridge into the river below. Its path is represented by h = -2t2+ 7t + 9,?

The angular displacement by minute's hand of a watch after 5.0 minutes is?

What is the correct reaction? CH3-COOH+Na2CO3->CH3-COONa+NaHCO3 or CH3-COONa+NaHCO3->CH3-COOH+Na2CO3?

determine the solution set for 2sin^2x =1+sinx for 0 ≤ x ≤2π?

∫x^2 squareroot x^3+5 dx=?

how to calculate pka and pkb (of acetate ion) from ph? -acetic acid/NaOH titration?

Chemistry help please!!!!!?

A mixture of FeO and Fe2O3 with a mass of 10.0g is converted to 7.43g of pure Fe. What are the amounts in grams of FeO and Fe2O3?

Need help with possibly explanation on how to answer the following math questions.?

12x^3-20X^2>-11x+2 help?

Need help splitting (x + 1) / (6x + x^2) into partial fractions?

How many litres are there in a Gallon?

Compute the perimeter of a right-angled triangle with area 7 and hypotenuse of length 6.?

electric heater rated 2.5kw is being used to boil a liquid.1.2kg of the liquid evaporates in 30mins.calc the latent heat of veporisation?

x + y + z = 1 x - y + 5z = 13 5x + y + z = -19?

Show algebraically that for all real x, 5+10x−3x^2≤40/3?

Find f '(a). f(t) = 2t + 2/(t + 3)?

when both volume and temperature increases,then does pressure increases or decreases?

If a^2-2a-1=0. Then find a-1/a,a+1a,a^2-1/a^2?

please help me with physics Electric Forces on Q1, due to Q2 is (4i-3j)N; Calculate the force on Q2 due to Q1?

A simple but basic maths question. 10 points for the right answer.?

Why electronegativity of elements increase in a period from left to right?

What is the Kc for the following equilibrium at 500∘C, N2(g)+3H2(g)⇌2NH3(g) [H2] = 0.35 M , [N2] = 0.40 M , [NH3] = 1.9 M ?

Http://i64.tinypic.com/2gxmtyf.jpg - Question 19 why is answer (b)..?

The given series has six terms. What is the sum of the terms of the series? 10 + 25 + 40 + . . . + 85?

In a triangle abc, ab=12, bc=18, ca=25. A semi circle is inscribed in abc such that the diameter of the circle lies on ac.?

Assistance with this math problem?

Would the solubility of Cu2S increase, decease, or stay the same if AgNO3 is added to the solution?

How to I solve 8^2x-5 = 5^x+1 using logarithm equation. Please show the steps if you can.?

how many ions of each type are in 125 ML of a solution containing 25.9 g of copper(II) nitrate per liter?

I need help solving Chemistry question?

1 mole of carbon dioxide occupies 24dm³ at rtp?

Structure of 5-ethyl-2,2dimethyl pentane?