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what is: a) 1/3 +1/4 ? b) 4/6 + 3/12?

a)First make the denominators the same by multiplying the 1/3 by 4 and 1/4 by 3. makesure top and bottom are multiplied then add the numerators together not denominators. answer should be 7/12. b) Do the sam...
CL
Answered by Charlotte L. • Maths tutor
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How would a policy of monetary expansion effect the domestic economy in the short term?

To answer this question we firstly need to remind ourselves of the core components of Aggregate Demand (AD): AD = C + I + G + (X-M) AD is made up of Consumption, Investment, Government Spending and the net e...
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Answered by Caspian C. • Economics tutor
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The effective use of quotations

Quoting effectively is important because the right quotation presented properly can add spice, interest, thought, effectiveness, support, and respect to your writing.
SR
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5.95g of potassium bromide was dissolved in 400cm3 of water. 1) calculate its molarity, 2)its concentration in g/dm3.

0.125 M 2) 14.875 g/dm3
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Answered by Natalie F. • Chemistry tutor
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A curve has parametric equations: x = 3t +8, y = t^3 - 5t^2 + 7t. Find the co-ordinates of the stationary points.

First differentiate: dx/dt = 3, dy/dt = 3t 2 - 10t + 7 Using the chain rule: dy/dx = dy/dt * dt/dx = (3t 2 - 10t + 7)/3 At stationary points, the gradient is equal to zero: 3t 2 - 10t + 7 = 0 Solve for t usi...
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Answered by Robbie B. • Maths tutor
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