Answer:
D. 160J
Step-by-step explanation:
Work = Force * Distance
but where is the force?
from here:
weight (not mass) is a force unit (Newtons) so it can be used here.
How do we get weight?
Mass * G
what is G?
gravity force... and it equals 9.8
so you take the box's mass (9.10)
multiply by 9.8 (9.10*9.8 = 89.18)
then plug into the first equation as the force (work= 89.18 * distance)
we also plug In the distance (work = 89.18 * 1.8)
and solve for work! (work = 89.18 * 1.8 = 160.52400)
then round the to the closest one (160)
and there you go! you've got your answer!
Hope this helps,
Yotam
P.S you can comment back if you are still confused and I will try to explain it again better.
Answer:
40.32
Step-by-step explanation:
112 ÷ 100 = 1.12
1.12 × 36 = 4.032
the scale factor from T to S = 1/2
Explanation:
Let the coordinate of R = (x, y)
Figure S is a scaled copy of R using a scale factor of 3:
S = 3(x, y)
S = (3x, 3y)
Figure T is a scaled copy of S using a scale factor of 2:
S = (3x, 3y)
T = 2(3x, 3y)
T = (6x, 6y)
The scale factor from T to S:
from (6x, 6y) to (3x, 3y): old to new
x axis: new/ old = 3x/6x = 1/2
y axis: new/ old = 3y/6y = 1/2
1/2(6x, 6y) will give (3x, 3y)
Therefore, the scale factor from T to S = 1/2
D(t)=100t/4=25t
d(5min)=25*5=125ft
d(16min)=25*16=400ft
The others are not ordered pairs of d(t)
The zeros are the solution of a polynomial
So your polynomial would be y= (x+4)(x-1)(x-2)
y= x^3 + x^2 - 10x + 8
