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Using the quadratic equation, solve 3x^2+2x-15 to two decimal places.

The quadratic equation is x=(-b+-SQRT(b^2-4ac))/2a. In this instance, a = 3, b = 2, and c = 15. Simply putting the numbers in place of the letter counterpart, gives an answer of 1.93 and -2.59 to two deci...

Answered by Callum F. • Maths tutor

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Who in 1450 invented movable type, thus revolutionising printing?

Johannes Gutenberg

Answered by Marta P. • English and World Literature tutor

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which is the first declination in latin? what is the difference between the two last terminations of the singular one?

rosa, rosae, rosae, rosam, rosa, rosa rosa and rosa differ for their valus: the fist one is use as a vocative, while the other one which is characterised by a long sound is used as various complements e.g...

Answered by Marta P. • Latin tutor

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what does ''which'' mean and how is it used?

quale (qual, quali), which: invariable in genre, it has different forms for singular or plural.

Answered by Marta P. • Italian tutor

1918 Views

I struggle with integration, and don't understand why we need to do it

First, my approach is to ask student to count the squares on the area under a curve. This process is tedious, and only gives an estimation. Next, I show them the formula to do integration, and immediately...

Answered by Han Y. • Maths tutor

4500 Views