Answer:
$114.46
Step-by-step explanation:
Answer:
n = -7,6
Step-by-step explanation:
n(n+1)+3=45
distributive property: a(b+c) = ab+ac
n²+n+3 = 45
n²+n -42 = 0
factor now
(n+7)(n-6) = 0
n = -7,6
v₀ = initial velocity of the freight train while it approach a road crossing = 16 km/h = 16 (5/18) m/s = 4.44 m/s
v = final velocity of the freight train after it crosses a road crossing = 65 km/h = 65 x 5/18 m/s = 18.06 m/s
t = time to do so = 10 min = 10 x 60 sec = 600 sec
acceleration is given as
a = (v - v₀ )/t
a = (18.06 - 4.44)/(600)
a = 0.023 m/s²
a = 294
Answer:
![f(0)=7.07](https://tex.z-dn.net/?f=f%280%29%3D7.07)
Step-by-step explanation:
We have the function ![f(x)=2(x)^2+5\sqrt{(x+2)}](https://tex.z-dn.net/?f=f%28x%29%3D2%28x%29%5E2%2B5%5Csqrt%7B%28x%2B2%29%7D)
In this case we want to find the value of f0)
To find f(0) you must replace the x in the function with the number 0 and solve as shown below
![f(0)=2(0)^2+5\sqrt{(0+2)}](https://tex.z-dn.net/?f=f%280%29%3D2%280%29%5E2%2B5%5Csqrt%7B%280%2B2%29%7D)
![f(0)=0+5\sqrt{(0+2)}](https://tex.z-dn.net/?f=f%280%29%3D0%2B5%5Csqrt%7B%280%2B2%29%7D)
![f(0)=5\sqrt{(2)}](https://tex.z-dn.net/?f=f%280%29%3D5%5Csqrt%7B%282%29%7D)
Therefore
![f(0)=7.07](https://tex.z-dn.net/?f=f%280%29%3D7.07)
Answer:
18
Step-by-step explanation:
I hope this helps