-(101/115)^684 ≈ -2.7447*10-39
√75 = √(25*3) = √52*√3 = 5√3
√12 = √4*3 = √22*√3 = 2√3
Therefore √75 + √12 = 5√3 + 2√3 = 7√3
Look at them upside down!
Like so?
delta is usually used to indicate a small part of something; so delta y (or δy) means a small part of y.
3*√27 = 3*√33 = √(32*33) = √(35) = 35/2
So n = 5/2
$$\frac{20^{98}}{25^{48}\times 16^{49}}=\frac{4^{98}\times 5^{98}}{5^{2\times48}\times 4^{2\times49}}}=\frac{4^{98}\times5^{98}}{5^{96}\times4^{98}}=5^{98-96}=5^2=25$$
Or just
$${\frac{\left({\mathtt{1\,000}}{\mathtt{\,-\,}}{\mathtt{40}}\right)}{{\mathtt{3}}}} = {\mathtt{320}}$$
Velocity is the slope of the curve of x against t. Between A and B the slope (hence the velocity) is increasing.
Between B and C the slope (hence the velocity) is decreasing (the velocity is still positive, but getting smaller).
One possibility is (1 + 3 + 4 - 2)*7
Another is 1*3*4*7/2
Another is (4+3)*(1+7-2)
...
+33666 
