Question

va rog cât puteți dau coroana​

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Answer 1

Răspuns:

1)-7,3+2,6:2=-7,3+1,3=-6(D)

2)C(-sqrt 2 aprox =-1,48 si sqrt 3 aprox egal 1,72)

3)3x+2=5=>3x=3=>x=1

mx-1=x=>m-1=1=>m=2(B)

4)2,5*10^5cm=0,25km(C)

5)3/sin 60°=3*sqrt3/2=>B

6)A=pi r²=4 pi=> r²=4=>r=2

d=2r=4(B)

7)A pgm=4*A triunghi=40(B)

8)teorema lui thales=>AB/AD=BC/DE=>16/4=BC/6=>4=BC/6=>BC=6*4=24(C)

Answer 2

Răspuns:

raspunsul este in imagini