Answer:
130
Step-by-step explanation:
<span>2x + x = 12
=> x =12/3 =4
so, original number is 84. </span>
Answer:
Y = Mx+C (General equation of a straight line)
Step-by-step explanation:
From the data given above, we could deduce that the data has two coefficients (X and Y). The numbers could be used to generate equation of a straight line.
E.g 2x+4 = 5y which is equivalent to
Mx+C = Y
Where C is the constant.
A2=a1*(-1)=8*(-1)= - 8
a3= (-8)* (-1)= 8
.....................................
a(n)= a(n-1)* (-1)
7^2+18^2=49+324
49+324=373
19.31^2 would be your answer
