Answer:
1600
Step-by-step explanation:
Answer:
10:40
Step-by-step explanation:
10+10+20=40
10 red cards
Answer:
8 1/2 divided by 2 1/4 = 3 7/9 inches
Answer:
y = -1/2x +1/2
Step-by-step explanation:
Point B is 4 up and 2 over from point A. So, the midpoint will be 4/2 = 2 up and 2/2 = 1 over, at (1, 0).
The ratio of rise to run between A and B is ...
m = rise/run = 4/2 = 2
The perpendicular line will have a slope that is the opposite reciprocal of this, -1/2.
Then the point-slope equation for the perpendicular bisector is ...
y -k = m(x -h) . . . . . line with slope m through point (h, k)
y -0 = -1/2(x -1) . . . .line with slope -1/2 through point (1, 0)
y = -1/2x +1/2 . . . . simplified to slope-intercept form
f(5) = 0.5^(5-1)*f(1) = 0.5^4 * 120 = 7.5
