Answer:
6554
Step-by-step explanation:
The sequence 2, -8, 32, -128 has a first term (a1) of 2 and a common ratio (r) of -8/2 = -4. The sum of n terms is given by ...
Sn = a1·(r^n -1)/(r -1)
For your sequence, the sum of 7 terms is ...
S7 = 2·((-4)^7 -1)/(-4-1) = 2(-16384/-5) = 6554
The sum of changes after the 7th day is 6554.
Answer:
A)
B)
C)
D)
Step-by-step explanation:
Let's go through each answer choice.
A) -3 is to the right of -4.5 on the number line, so it is greater than -4.5
B) -3/2 is to the right of -4.5 on the number line, so it is greater than -4.5
C) 1/3 is to the right of -4.5 on the number line, so it is greater than -4.5
D) 2.5 is to the right of -4.5 on the number line, so it is greater than -4.5
E) -5.2 is to the left of -4.5 on the number line, so it is less than -4.5
Therefore, the answers are A), B), C), and D).
Well, you distribute the 8 to both terms since it is being multiplied.
8 * y = 8y
8 * 3 = 24
so the ending equation should be 8y + 24
Answer:
I think the answer is C I'm not 100 percent sure but I hope it helps
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
The distances have the ratio:
(C -A) = (2/3)(B -A)
C = (2/3)B +(1/3)A . . . . . add A
C = (2B +A)/3 . . . . . . . . combine terms
C = (2(4) +(-2))/3 = 6/3 = 2
The coordinate of C is 2.
