∑ ( from n = 1 to n =5 ) 3 · ( -2 ) ^( n -1 )
a 1 = 3 · ( -2 ) ^0 = 3
a 2 = 3 · ( - 2 ) = - 6
a 3 = 3 · 4 = 12
a 4 = 3 · ( - 8 ) = - 24
a 5 = 3 · 16 = 48
3 - 6 + 12 - 24 + 48 = 33
Answer: C ) 33
Answer:
80
Step-by-step explanation:
80 is the main score I think.....
Step-by-step explanation:
- 1.25 × 10^-4
- 2.0 × 10^-4
- 3.25×10^-6
<span>3x + y =3
Y = 2x - 7
substitute </span>Y = 2x - 7 into 3x + y =3
3x + y =3
3x +2x - 7 =3
5x = 10
x = 2
Y = 2x - 7 = 2(2) - 7 = -3
answer
(2, -3)
Answer:
-4
Step-by-step explanation:
-4/3÷2/-6
⇒ -4/3×-6/2
⇒ -24/6
⇒ -4
