well none of the answer choices match up with all these statements ...
C. it only matches up with the y-intercept given
D. it matches with the y-intercept, and the x- intercept is not quite on the 1
*but i would say C is the closest, because it has an x-intercept of -1 and the maximum point is at (1,4) ... which are the same with the given statements except that they have opposite signs, but yeah i have no clue*
Step-by-step explanation:
Let w be the speed of wind and v be speed of airplane without wind.
(A)
(B)
(C)
Adding equations A and B, we get :
(v - w) + (v + w) = 350 + 525
2v = 875
<u>V = 437.5 mph</u>
Answer:
6
Step-by-step explanation:
21-20 = 1
20-18 =2
18 -15 = 3
15-11 = 4
We are subtracting 1 more each time
11-5 = 6
Solve for x in the second equation.
Just add 1 to both sides to get x = 9y + 1
Then plug 9y + 1 into the first equation for x
7(9y+1) - 9y = 1
63y + 7 - 9y = 1
54y + 7 = 1
54y = -6
y = -6/54 or -1/9
Plug y back into one of the equations to get x = 0
Answer: (0, -1/9)