P= 11.2
Not sure why you took p out of the equation.
2.6(5.5p-12.4)=127.92
14.3p - 32.24 =127.92
14.3p = 160.16
P = 11.2
Answer:
3789
Step-by-step explanation:
The third angle is 180-55-65 = 60°.
Exterior angles are 180-55 = 125°, 135°, 120°
Answer:
20 mph
Step-by-step explanation:
time = distance / speed
speed up stream = s - 4
speed down stream = s + 4
time up = time down
8 / (s - 4) = 12 / (s + 4)
cross multiply
8s + 32 = 12s - 48
subtract 8v from both sides
32 = 4s - 48
add 48 to both sides
80 = 4s
Divide both sides by 4
20 = s
20mph
H (t) = - 16t ^ 2 + 16t + 480
For this case, the first thing to do is to match the polynomial to zero to find the roots.
We have then:
0 = -16t ^ 2 + 16t + 480
From here, we obtain the following roots of the polynomial:
t1 = -5
t2 = 6
We ignore the negative root because the time is always greater than zero.
Answer:
it takes Rose to hit the water about
t = 6 seconds
