Question

Tolong di jawab.............

Answer 1

4. B (5.4), C(-3, 8), A(1,- 6)

D = 1/2 ( B + C)
Dx = 1/2 (cx + bx) = 1/2 (-3+5) = 1/2(2)= 1
Dy= 1/2 (cy+ by) = 1/2 (8 - 4) = 1/2(4) = 2

Persamaan garis melalui A (1, -6) dan D(1,2)  --> x= 1

5)
a + b = 29
a = b + 5
--------------(-)
0 + b = -b + 24
2b = 24
b = 12
a = b+5
a = 12 +5
a = 17

a = 17, b = 12
hasilkali = ab = 17(12)= 204