Acute is an angle less than 90 degrees obtuse is an angle bigger than 90 degrees and a right angle is 90 degrees.
carbon and it has 4 valence electrons
Answer:
yes, ±2
Step-by-step explanation:
The x-intercepts are found by setting y=0 and solving for x:
x^2/4 = 1
x^2 = 4
x = ±√4
x = ±2
The x-values of interest are -2 and +2.
Answer:
Speed of passenger train=18+30=48 mph
Speed of freight train=30 mph
Step-by-step explanation:
Let x be the speed of freight train.
Speed of passenger train=x+18 mph
Time taken by freight train=1.5+2.5=4 hrs
Time taken by passenger train to overtake the freight train=2.5 hrs
Distance=
By using this formula
Distance traveled by passenger train=2.5(x+18) miles
Distance traveled freight train=4x
According to question





Speed of freight train=30 mph
Speed of passenger train=18+30=48 mph
Answer:
21/2 or 10.5
Step-by-step explanation: