F(x) = 2x + 5
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Find f(x + 1) :
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f(x +1) = 2(x + 1) + 5
f(x +1) = 2x + 2 + 5
f(x + 1) = 2x + 5
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Find -2f(x+1):
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-2(fx+1) = -2(2x + 5)
-2(fx+1) = -4x - 10
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Answer: -2(fx+1) = -4x - 10
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2x+(x-10)=4
3x-10=4
3x=14
x=4.6 repeating
Answer:
140.74
Step-by-step explanation:
1.area of right triangle
1/2*b*h=1/2*20*18=180
2.area of semi circle
1/2*pi*r^2=1/2*pi*5^2=39.26
r= d/2
180-39.26=140.74