Question

1. 32 -1/5 - 64 1/3 =
2. 20 suku pertama 3,7,11,15 adlh
3.persamaan garis (2,7) dam tegak lurus 5x+3y=29

Answer 1

2. Beda= 7-3=4
Sn=n/2 (2.U1 + (n-1) b)
S20=20/2 (2.3 + 19.4)
=10 (6+76)
=10 (82) = 820

Maaf kalau salah

Answer 2

1. 32^(-1/5)-(64^(1/3))=(2^5)^(-1/5)-(4^3)^(1/3)
=1/2-4
=1/2-8/2
=-7/2

^= pangkat

2. a=3
b=4
S20=20/2(2×3+19×4)
=10(6+76)
=10(82)
=820

3. m1= -5/2

m1×m2=-1
-5/2×m2=-1
m2=-1×-2/5
m2= 2/5

y-y1=m(x-x1)
y-7=2/5(x-2)
5y-35=2(x-2)
5y-35=2x-4
5y-2x-35+4=0
5y-2x-31=0