Answer:
a1 = 4
a2= -2
a3 = -8
a4= -14
a5= -20
Step-by-step explanation:
a12= a1 + 11d
-62 = 4 + 11d
-62-4 = 11d
-66= 11d
d =
= -6
a1 = 4
a2 = 4 - 6 = -2
a3 = 4 - (6×2) = -8
a4 = 4 - (6×3) = -14
a5 = 4 - (6×4) = -20
Answer:
17.3
Step-by-step explanation:
sin(30)=0.5
0.5*20=100
20*20+x*x=100
x=17.3
Answer:
a and e
Step-by-step explanation:
Answer:
2(x+x)-2
= 2(2x - 2
= 4x - 2
Step-by-step explanation:
(85 + 60) ÷ 2 = 72.5 Close to 71%
Answer: D - 71%