Step-by-step explanation:
not possible, but thanks for the points..!
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:
D
Step-by-step explanation:
We know that four (4) queen cards are present in the deck of 52 cards. So, the probability of drawing one queen card is calculated as,
P = 1/13
The probability of not a queen is calculated as,
P' = 1 - P = 1 - 1/13 = 12/13
Answer:
6. 4x^2 + x - 1
7. 3x^2 + 4x + 4
Explanation:
(3x^2 + x + 8) + (x^2 - 9)
4x^2 + x - 1
(5x^2 + 8x - 2) - (2x^2 - 4x + 6)
3x^2 + 4x + 4
Answer:
Step-by-step explanation:
x²/a² - y²/b² = 1
center (0,0)
vertex (3,0), so a = 3
focus (9,0)
e = 9/a = 3
directrices: x = ±a/e = ±1
