Someone plzz with these 2 problems asap ! will mark cindy has 26 nickels. she is getting rolls of nickels from the bank. she has enough money to get up to 10 rolls of nickels and each roll contains 40 nickels. the bank will not give partial rolls. the function that models the number of nickels cindy will have after leaving the bank is f(r)=40r+26, where r is the number of rolls of nickels she gets. what is the practical range? the graph shows the amount of dirt left to remove, y, with respect to number of loads of dirt, x. what is the y-intercept? what does the y-intercept represent? (graph is you in advanced!

Good morning Sir/Ma'am!

f(r) = 40r + 26

If she can only afford 10 rolls, then the maximum number of nickels Cindy will have is:

f(10) = 40(10) + 26 = 426 nickels

Step-by-step explanation:

Given function  f(r)=40r+26, where r is the number of rolls of nickels she gets.

as it is already mentioned that she can get up to 10 rolls of nickels.

Therefore domain of function contains r ≤10,such that r is a natural number.

i.e.Domain of f(r)=all integers from 1 to 10, inclusive.

Domain of a f(x) is a set of values of x which make function f(x) well defined.

Have a great day! ( :

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: