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How do you calculate the sine, cosine and tangent values for 45 degrees without a calculator?

To find the values for 45 degrees, we construct a right angled isosceles triangle, which has two sides of equal length. We can say that these sides are 1 unit long, and so we can figure out the value of the ...
HC
Answered by Heather C. • Maths tutor
26872 Views

I decrease a number by 26%, the answer is 9 x10^-7, what was the original number?

The number has been decreased by 26%, this means that the original number is 100-26=74% of the original value. Therefore 9 x 10 -7 = 0.74 x N, where N is the original number. Hence N=(9 x 10 -7 )/0.74 = 1.21...
LC
Answered by Luke C. • Maths tutor
4690 Views

Cosa ti piacerebbe fare la prossima estate?

Mi piacerebbe molto andare in Francia. Non ci sono mai stato, e vorrei vedere in particolare Parigi. Mi hanno detto che i dolci sono buoni.
CM
Answered by Chiara M. • Italian tutor
3114 Views

What is the difference between the different demonstrative pronouns?

First of all, we need to define what a demonstrative pronoun is. A demonstrative pronoun takes the place of a noun in a sentence. When discussing demonstrative pronouns in Spanish, proximity (how close we ar...
HP
Answered by Hari P. • Spanish tutor
2902 Views

How important is it to use theories such as liberalism and realism to support your answer in an exam?

When tackling exam questions, I would say using theories as a basis is very important. This is because it demonstrates to the marker a depth of knowledge. The more specific your facts are, the better. For ex...
VJ
Answered by Victoria J. • Politics tutor
2357 Views