The answer for this problem would be 213
Answer:
Step-by-step explanation:
You first times the width by the height than divide by 2
Answer:

Step-by-step explanation:
we know that
----> equation A
Applying Pythagoras Theorem
-----> equation B
-----> equation C
substitute equation A in equation C

we have that

so

substitute the given values

Solve for m



Find the value of PQ

substitute the value of m


5/5 will be a whole, when it comes to 5ths, since she spent 2/5 of her money, 5/5 - 2/5, she has left 3/5 of the whole then.
then she spent 4/9 of her 3/5 leftover, how much is 4/9 of 3/5? well, is just their product,
Basically when the object hits the ground, f(t) is equal zero. So all you need to do is to solve the quadratic equation:
-5t^2 + 20t + 60 = 0
D = b^2 - 4ac = 20^2 - 4 × (-5) × 60 = 400 + 1200 = 1600
t1 = (-b + sqrt(D)) / 2a = (-20 + 40) / (-10) = -2
t2 = (-b - sqrt(D)) / 2a = (-20 - 40) / (-10) = 6
Since time can't be negative, our solution is t2.
So the object will hit the ground in 6 seconds.