Answer:
-1 or 4
Step-by-step explanation:
f(x) = g(x)
-x^2 + 4x + 12=x + 8
-x^2+3x+4=0
(x+1)(x-4)=0
x=-1,x=4
Step-by-step explanation:
1/2 is the answer
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Answer:
v = 72 km/h
Step-by-step explanation:
Given that,
The distance covered by the Patrick, d = 288 km
Time taken, t = 4 hours
We need to find the average speed of Patrick. We know that the average speed of an object is equal to the total distance covered divided by total time taken. Let it is v. So,

So, his average speed is equal to 72 km/h.
<h2>
Density of ethyl alcohol is 56.25 lbm/ft³ </h2>
Step-by-step explanation:
We have 1 lbm = 0.454 kg
1 kg = 2.203 lbm
1 m = 3.28 ft
Density of ethyl alcohol = 9.01 x 10² kg/m³

So
Density of ethyl alcohol = 56.25 lbm/ft³