Students helping students, join us in improving Bored of Studies by donating and supporting future students!
Questions 21 b) and 28 a) don't seem correctSomeone posted it (with answers) in the advanced maths thoughts thread. I'm not sure of the accuracy of the answers though. I hope this helps.
Yeah i didn't think they were right, for 28 a) It says at least one of the 2 are paid within the range, so wouldn't it be 1-(none paid in the range)??Questions 21 b) and 28 a) don't seem correct
Yes exactly, that's what I didYeah i didn't think they were right, for 28 a) It says at least one of the 2 are paid within the range, so wouldn't it be 1-(none paid in the range)??
This one seems wrong as well - isn't the derivative incorrect?Was question 21 b) instantaneous rate of change?
Wouldn't derivative be -28(1.5)^-0.4tThis one seems wrong as well - isn't the derivative incorrect?
nah i think you can only do that if it's eWouldn't derivative be -28(1.5)^-0.4t
I got -28ln1.5*(1.5)^-0.4tWouldn't derivative be -28(1.5)^-0.4t
I got that too... the formula for the derivative of a^x is on the formula sheet so I'm pretty sure thats correctI got -28ln1.5*(1.5)^-0.4t
Yes i got the same result aswellI got -28ln1.5*(1.5)^-0.4t
Yeah i got c = e as well and a few of my mates did tooalso for 29 b I got c=e but not sure if that is correct