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Nimnath commented,
No need for calculus to cover the topics on Khan Academy. But, if you wish to study probability and statistics at the college level you will have to be familiar with multivariable calculus and line...

Nimnath commented,
Let the number be n. n*5 +8 3 = (5n+5)/5 = n+1 n = 1 +83 can be combined to +5

Nimnath commented,
There are multiple techniques, for example, solving by factoring, by quadratic equation etc. Have a look here: https://www.khanacademy.org/math/algebra/quadratics

Nimnath commented,
If you sketch the prism, then it will be easier to see how the cubes can be stacked inside. On the 2.5 cm * 2 cm bases you can stack 5 * 4 (20) cubes. Since the prism is 1cm of height, you can have...

Nimnath commented,
Let load of truck be m (in kg). Let speed of unloading of Shaun be x (kg/hour) Then speed of unloading of Jack is 2x. m/(2x+x) = 5 (hours) => m = 15x (kg) If working alone: Shaun = 15x/x = 15 (h...

Nimnath commented,
peopleminutes per wall = 343434 * 666 /666 = 343434 minutes to paint 181818 walls by 181818 people = 181818 * 343434 /181818 = 343434

Nimnath commented,
https://www.khanacademy.org/math/differentialcalculus/dcchain/modal/v/exponentialfunctionsdifferentiationintro

Nimnath commented,
Take the small triangle where the pi/2beta has been marked. The remaining angle (that is not the right angle) = pi (pi/2beta + pi /2) = beta Now tan(beta) = s / t and s / t = tan(0.697) < giv...

Nimnath commented,
Your approach seems fine to me.

Nimnath commented,
Whilst I am not able to give you the exact breakdown I can share with you the path I followed. I studied economics at grad level, so I did learn many of the calculus topics. But when I started to l...

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