3x + 4y = -5
-3x -3x
4y= -3x -5
/4 /4
y= -3/4x-5/4
3x + 3y = -2
-3x -3x
3y = -3x-2
/3 /3
y= -1x-2/3
Answer:
(a) , , , , , , .
(b) , , , , , , , .
Step-by-step explanation:
In this exercise we only need to recall the formula for C(n,k):
where the symbol is the factorial and means
.
By convention 0!=1. The most important property of the factorial is , for example 3!=1*2*3=6.
(a) The explanations to the solutions is just the calculations.
- .
(b) The explanations to the solutions is just the calculations.
For all the calculations just recall that 4! =24 and 5!=120.
Answer:
i NEED A PICTURE.
Step-by-step explanation:
x=
34
/3 thats what I got 34/3=11.333333
Noelle goes east at N mph.
Karina travels west at N + 9
then their velocity between them is (N + N + 9)
After 8 hours they travel 8(2N + 9) = 232
(2N + 9) = 29
2N = 20
N = 10 mph for Noelle
N+9=19 mph for Karina