Javier begins to save for a new bicycle that costs $415. he already has $140 and plans to save $25 per week. let w represent the number of weeks he has been saving and s(w) represent the total amount in dollars that he has saved. how long does he have to save to buy the bicycle?

a. give the slope and the y-intercept of the function.

b. write a linear function using the given information.

c. describe how to use the function to answer the question, and then answer the question.

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.