Start by distributing the 4:
12-8x=15
Add 8x to both sides of the equation and subtract 15 from both sides:
8x=-3
divide both sides by 8 to get the value of x:
x=-3/8
Answer:
The answer to your question is: -2x -5
Step-by-step explanation:
h(x) = x -3
g(x) = 3x + 2
find (h -g)(x)
Just
(h-g)(x) = x - 3 - (3x + 2)
= x - 3 - 3x - 2 like terms
= -2x -5 result
Answer:
A = 38°
Step-by-step explanation:
We are going to use cosine law to find angle A where
a = 4.7
b = 3.9 m
c = 2.9 m
or
cos A = [(4.7)^2 + (3.9)^2 - (2.9)^2]/2(4.7)(3.9)
= 28.89/36.66
= 0.788
A = arccos(0.788) = 38°