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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Answer:
72.22
Step-by-step explanation:
C = 
3.14×23=72.22
Answer:
H is the circumcenter of triangle BCD
- CD = 2FD = 2*32 = 64
- CE = BE = 26
- HD = HC = 33
- GD = 1/2BD = 1/2(58) = 29
- HG = √HD ²-GD² = √33²-29² = 2√62 ≈ 15.75
- HF = √HD ²-FD² = √33²-32² =√65 ≈ 8.06
Answer: No solution
Step by step:
10x-2(5x+2)=12
10x-10x-4=12
0x=16
No solution
