Answer:
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Step-by-step explanation:
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Answer:
7
Step-by-step explanation:
5( x - 3)/2 - 1 = 9
5/2(x-3)-1=9
5/2x-15/2-1=9
5x-15-2=18
5x-17=18
5x=35
x=7
113.4-18=95.4
So 95.4+18=113.4
Hope that was useful and best of wishes!!
F ( x ) = 3 sim x + 3 cos x
f ` ( x ) = 3 cos x - 3 sin x
f `` ( x ) = - 3 sin x - 3 cos x = - 3 ( sin x + cos x )
The inflection points:
- 3 ( sin x + cos x ) = 0
sin x + cos x = 0
sin x = - cos x / : cos x
tan x = - 1
x 1 = 3π / 4
x 2 = 7π / 4
The function is concave up when f``(x) > 0
- 3( sin x+ cos x ) > 0
sin x + cos x < 0
tan x < - 1
f is concave up for:
x ∈ ( π/2, 3π/4 ) ∪ ( 3π/2, 7π/4)
f is concave down for:
x ∈ ( 0, π/2 ) ∪ ( 3π / 4, 3π/2 ) ∪ ( 7π / 4, 2 π ).
The answer is 
First, you must divide 12 on both sides.
Then, simplify the fraction.
