engmath

This page lists questions and answers that were posted by visitors named engmath.

Questions

The following questions were asked by visitors named engmath.

Find f'(c) if f(x)=-3e^(x+2)+ e^(-5) [NOTE:A small algebraic manipulation is needed first to get f(x) into a form so that the derivative can be taken and your answer isn't a # but rather a formula that returns and answer.] attempt at the problem: 3e^(x+2)...

What is 14.586 Newtons converted to convert μN?? I thought it was 14,580,000 μN but I am not sure. Thank You

A car traveling on a flat (unbanked) circular track accelerates uniformly from rest with a tangential acceleration of 1.70 m/s2.The car makes it one quarter of the way around the circle before it skids off the track. Determine the coefficient of static fr...

Answers

The following answers were posted by visitors named engmath.

the rational function is r(x)=[f(x-h)-f(x)]/h (also known as the limit definition) so if your function is F(x)=2x+3 plug it into the rational function [2(x-h)+3-(2x+3)]/h =[2x+2hx-3-2x-3]/h --->then simplify =2h/h--->cancel the h's =2 then do the same thi...

ah sorry... I was looking at your problem and thinking of something else. Here is the correct solution for part a so therefore... SO if F(x)=2x+3 plug it into your rational function r(x)=[f(x-h)-f(x)]/h =[2(x-h)+3-(2x+3)]/h =[2x-2h+3-2x-3]/h --->then simp...

velocity is the derivative of the position function or the slope of the line....So Choose two points on the graph. Subtract the "x-coordinates" (change in position), subtract the "t-coordinates" (change in time) and divide the first by the second, v/t is...

after you ln both sides you end up with -3(x+2)=-5 -3x-6=-5 f(x)= -3x-1 f'(x)= -3 unfortunately that was not correct either, but I appreciate your help! :)

yes you are correct.... I wrote the formula wrong x/t instead of v/t where x(position) is the dependent variable(y) and t is the independent variable(x) sorry I know its confusing!! some people use s variable to represent the position so: delta s/delta t...

I will do the first two for you and you can try the other three: 1) We are in the library. *change be to are 2) She is at the college? * change be to is

Your Welcome =D Speed is the absolute value of velocity. Velocity can be negative where as speed cannot. That is the only major difference but other than that they are the same!

1)She is not. *change be to is, change no to not

order of operations: (1)DO operations inside parentheses (2)Distribute powers (3)Multiply and Divide left to right (4)Add and Subtract left to right so: (-2-1)*(3.2)+4.3*(-1.5) do operations inside parentheses first (-3)*(3.2)+4.3*(-1.5) then do multiplic...

-11.65 if the first part of the problem is simply: -2-1*(3.2) and not (-2-1)*(3.2)as I have shown above

then its -13.17 understand why?

-2.1*3.2+4.3*(-1.5) (1)First perform any calculations inside parentheses. (2)Next perform all multiplications and divisions, working from left to right. (3)Lastly, perform all additions and subtractions, working from left to right. So: first multiply term...

270 just to check 270/30= 9 which is 3*3

α=a/r the time it takes to travel π/2 radians is related by π/2=.5*a*t^2/r solve for t t=sqrt(π*r/a) ω=α*t Plug in t and a/r ω=sqrt(a*π/r) The force is m*ω^2*r F=m*a*π friction is m*g*µs then m*g*µs=m*a*π so basically.... µs=a*π/g =1.70pi/9.8= 0.54497 ===...

and that answer comes up as incorrect...