I didn’t want to type it so I hope you can understand this
Every year, millions of homeowners pay property taxes. Rather than just paying the tax bill when it's due, it's important to understand the calculations behind how property taxes are assessed by the property appraiser's office in your community. This way you can make sure you are not being overcharged.
F(x)=x²+3x ; [-2;3]⇒Δf/Δx=(f(3)-f(-2))/(3-(-2))=4 (A)
f(x)=3x-8 ; [4;5]⇒Δf/Δx=<span>(f(5)-f(4))/(5-4)=3 (B)
f(x)=x</span>²-2x ;[-3; 4]⇒<span>Δf/Δx=(f(4)-f(-3))/(4-(-3))= -1 (C)
f(x)=x</span>²-5 ;[-1; 1]⇒<span>Δf/Δx=(f(1)-f(-1))/(1-(-1))= 0 (D)
answer: A, B, D, C
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The ratio is that of one term to the one before:
... 12/6 = 2
It is "common" because it applies to every pair of adjacent terms:
... 24/12 = 48/24 = 96/48 = 2
The appropriate choice is ...
... B 2
The mass of the object is 13 kg.