Answer:
7x-13y=-117
Step-by-step explanation:
I don't know how this question wants me to solve it, but I just used the slope intercept form. So first, start off with y = mx+b. Plug in the slope for m, so 7/13. Then plug in your points for x,y which is 0,9. You'll get 9 = b. So then you have y = 7/13x+9. So now you need to change into standard form. So, multiply by the denominator (13) and you'll get 13y = 7x+117. Then move the variable over and you'll get 13y - 7x = 117. But it doesn't fit any, so then just multiply by -1 and you'll get -13y + 7x = -117.
It would be 2.1×10 to the power of 13
I will help up you using these statements which I took for the same problem:
a) at the lowest position of the bob, the KE is equal to zero.
FALSE BECAUSE AT THE LOWEST POSITION THE PE IS THE LOWEST AND THE KE IS THE HIGHEST.
b) at the highest position of the bob, the PE is equal to zero.
FALSE BECAUSE AT THE HIGHEST POSITION THE PE IS THE HIGHEST
c) at the highest position of the bob, the KE is equal to zero.
TRUE: AT THE HIGHEST POSITION THE PENDULUM COMES TO ZERO SPEED AND SO THE KE IS ZERO.
d) at all the positions except the highest positions the PE is zero.
FALSE: THE PE ENERGY CHANGES WITH THE ALTITUDE AND IS ZERO ONLY AT THE BASE LEVEL.
One ratio is 30:40 since 15 times 2 is 30 and 20 times 2 is 40.