Answer:
40
Step-by-step explanation:
y = 50 + .4 x 40
y = 30 + .9 x 40
y = 66 for both equations
Gradient of line= (y2-y1)/(x2-x1)
Gradient of line= (10-(-6))/(8-4)
Gradient of line= 16/4
Gradient of line= 4
Y-intercept
Y=4x+c
When x=8, y=10
10=32+c
c= -22
Equation of line
Y=4x-22
When x=b, y=2b
Y=4x-22
2b=4b-22
22=2b
b=11
Answer:
21708
Step-by-step explanation
Ok I am not so sure about this one, since this was a LOT of counting, and unless you want to see 5 pages of calculations, I'm just going to go on a limb and say trust me. However, if you really want to see for yourself, I'll give you a hint. For the first 1***1 numbers, the sum is 1440. For the 2***2 numbers, the sum is 1683. Try to calculate this to 9***9 to find the answer! Again, not sure about my answer if it's wrong, sorry!
That's a typo...if the acceleration of gravity is -16ft/s^2??? Maybe basketball on Mars :P
Free fall equation result from integration of the acceleration equation with respect to time...
a=g
v=gt+v0
h=gt^2/2+v0t+h0 where v0 and h0 are initial velocity and height respectively..
Since acceleration, g, is about -32ft/s^2 not -16ft/s^2 you get:
h=-16t^2+36t+4 for your height equation.
h(2)=12 ft
Answer:
3/28
Step-by-step explanation:
that dot is a multiplication sign, right?