Nicola gets her electricity and gas from the same supplier. she receives a notification from her supplier that prices for electricity and gas have increased. the average monthly consumption for the business is 1120khw of electricity and 3388 khz of gas.(kherson is short for kilowatt hour)this is the unit of energy used to measure how much electricity and gas are useful. how much more will nicola now have to pay for her electricity and gas, based on her average monthly consumption? (round your answer at the end of the calculation)

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: