Apr 8, 2018 · -43.5 and -46.5 I get all four answers the same as you. If you deal with them as two separate fractions you can get the bigger differences. Sorry it's not a very mathematical explanation!

The sum of the first nth term of a geometric series is 145 and the sum of the reciprocal is 145/33. The first term is 1. What is n and the common ratio? Precalculus

Explanation: Velocity of man just prior to landing on the pad #=4.4ms^-1# Momentum of man just prior to landing on the pad #p=mv# #=50xx4.4=220kgms^-1#

c speed nu frequency E energy p momentum h Planck's constant c = 3xx10^8 m/s (in vacuum) E = h nu energy of the photon p = E/c momentum of the photo Basically you only need to know two properties …

Explanation: Product P = (2x1 - 5) (5x2 + 7) = 0 Solving the 2 binomials, we get #x1 = 5/2# and #x2 = -7/5# Answer link You can reuse this answer

55/406 Think about one bulb being taken out at a time. Once one has been removed, there will be one less, so the probability for the second bulb changes. For both bulbs to be red we want: The first must …

Above the Answer box you should see something like: Click on the "Image" selector You should then get something that near the bottom looks like: Clicking on the Choose File will open a window that allows …

Iron is more electropositive than Silver as evident from their positions in the electrochemical series.Less electropoitve Silver ions (Ag^+) get reduced by the Iron Fe atom and as a result metallic silver is …

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It is a nucleophilic substitution As you know, KCN will dissociate into K^+ and CN^-. Now due to electronegativity differences, the nitrogen will have a predominantly negative partial charge. Hence, it …