The sum of ten and the quotient of a number x and 6.

if you want to write an equation, it is:

(x/6)+10

answer:

10 + x divided by 6

step-by-step explanation:

this is what i believe is the answer. (may not be right but try )

answer:

the point lies 1 unit below the regression line.

step-by-step explanation:

the residual is the actual value minus the predicted value.

so the residual of -1 means the point lies 1 unit below the regression line.

answer:

step-by-step explanation:

prove : 25^9 + 5^7 ≡ 0 ( mod 30) or 5^18 + 5^7 ≡ 0 ( mod 30)

because : 25= 5²

calculate 5^p   for 1 ; 2; 3 ;

5^1   ≡ 5 ( mod 30)

5^2   ≡ 25 ( mod 30)

5^3   ≡ 5 ( mod 30)

5^4   ≡ 25 ( mod 30)

p = 2k+1   5^p ≡ 5 ( mod 30)

p = 2k     5^p ≡ 25 ( mod 30)

so : 5^18 ≡ 25 ( mod 30)   *)

    5^7 ≡ 5 ( mod **)

add (*) and (**) : 5^18 + 5^7 ≡ 0 ( mod 30) because : 30≡0 (mod30)