X=5 because 4x5=20 and 20-4=16
Answer: Choice C) 115 degrees
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Explanation:
The three angles are 42, 73 and 65 degrees. Let's call them x,y, and z respectively
x = 42
y = 73
z = 65
To find an exterior angle for x, we subtract the given angle x from 180
180-x = 180-42 = 138
The exterior angle adjacent to angle x is 138 degrees. This isn't listed so we move on
Do the same for y
180-y = 180-73 = 107
This isn't listed either. So we move on
Repeat for angle z
180-z = 180-65 = 115
This is listed as choice C. That's why choice C is the answer
Answer:
The functions g and f are said to commute with each other if g ∘ f = f ∘ g. Commutativity is a special property, attained only by particular functions, and often in special circumstances. For example, |x| + 3 = |x + 3| only when x ≥ 0. ... The composition of one-to-one functions is always one-to-one.
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Answer:
3.15
Step-by-step explanation:
4.99x.45=2.25 discount
4.99-2.25=2.74 sales price
2.74x.15=.41 sales tax
2.74+.41=3.15 total price
Answer:
18
Step-by-step explanation:
f(x)=2x and g(x)=x2+3, find (g ∘ f)(−3)
f(x)= 2(-3)= -6
g(x)= (-3)(2) +3= -6+3= -3
(g ∘ f) = -6 x -3= 18
