Question

Lagi nih :D nmr 21,22,23 pake cara ya :D maap ngerepotin ;)

Answer 1

F(x) = -2x - 3
Masukkan nilai -2 ke dalam x

f(-2) = -2(-2) - 1
= 4 - 1
= 3

==========

keliling lingkaran = πd
= 22/7 * 210
= 22 * 30
= 660

Jarak yang ditempuh = 660 * 5
= 3300 meter

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3x + 2 = 5x - 6
3x - 5x = -6 - 2
-2x = -8
2x = 8
x = 8/2
x = 4

x + 2 = 4 + 2
= 6