Answer:
2688
Step-by-step explanation:
This is a bit confusing, double check if you typed everything correctly.
Y =3x+13---------#
-4x+3y=19-------*
subsititute value of y in equation *
-4x+3(3x+13)=19
-4x+9x+39=19
5x=-20
x=-20/5
x= -4
Answer:
83
Step-by-step explanation:
a_1 = -4
a_2 = -1
a_2 - a1 = -1 - (-4) = 3
Each new term is 3 added to the previous term.
a_n = a_1 + 3(n - 1)
Test: Let's find the 4th term and see if we get a_4 = 5.
a_4 = a_1 + 3(4 - 1) = -4 + 3(3) = -4 + 9 = 5
We see that the 4th term really is equal to 5.
a_30 = a_1 + 3(30 - 1) = -4 + 3(29) = -4 + 87 = 83
Answer:
Step-by-step explanation:
Okay so the 4(2t +2) and 4t + 8 + 4t go under 8t + 8, because when you distribute and add like terms, you get 8t+ 8 for both
(8*t)+(8*8) and 8t + 64 go under 8(t+8) because similar to the other, when you distribute and add like terms you get 8(t+8) for both
The last two options 8t+16 and (8+t) +(8+8) go under neither because when distributed and added, they don't match up to either or
Hope that helps!
