Question

Pls matma klasa7 daje naj

Answer 1

1) 5(x-2)=2a+1

x-2=(2a+1 )/5

x=(2a+1)/5 +2

2) V=u+xt

V-u=xt

x=(V-u)/t

3) V=1/3pi·r^2·H

3V=pi ·r^2 ·H

3V/ pi·H=r^2

r= pierwiastek 3V/pi· H

V=1/3pi·r^2·H

3V=pi·r^2·H

H=3V/ pi·r^2

4) a=(V1-V0)/t

at=V1-V0

V0= V1-at

a=(V1-V0)/t

at=V1-V0

t=(V1-V0)/a