The answer is 270 trucks.
To find the average of three scores, add the three scores and divide the sum by 3. Let the score of the third test be x.
Answer: The score must be at least 88.
<span>In general, the height of a projectile is given by
</span>
<span>
where </span>
is the height at time
of a projectile shot upward at velocity
from initial height
<span>.
The acceleration of gravity </span>
<span> We give it a negative sign in the equation because it pulls down.
Let's apply it to each group.
Group A launches a tennis ball straight up with an initial velocity of 19 meters per second.
We have MKS units, positive (upward) velocity and an initial height of 0.
</span>
<span>
Group B launches a tennis ball straight up with an initial velocity of 50 feet per second. Not metric, velocity +50, initial height zero.
</span>
<span>
Group C drops a tennis ball from a height of 19 meters.
MKS, initial height 19, initial velocity zero.
</span>
<span>
Group D drops a tennis ball from a height of 50 feet.
</span>
<span>
</span>
You spent 9 dollars. why? because your neighbor spent 3 times more than you, which means you spent 1/3 of what he spent. so just multiply by 1/3 to get 9.
this can also be modeled by an equation. 3x = 27
divide 3 on both sides to get
x = 9
Answer:
Axis Of Symmetry: x = 0
Vertex: (0, -6)
Domain: (
−
∞
,
∞
)
,{x
|
x
∈
R
}
Range: [
−
6
,
∞
)
,
{
y
|
y
≥
−
6
}