A wallet contains 4 bills with denominations of $1, $5, $10 and $20. You choose two of the four bills from the wallet at random and find the sum of the dollar amounts. What is the probability of getting $15? And what is the probability of getting $50.

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.

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation:

i don't even know how to read that, ill try to do it if you translate it into english.