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Llana [10]
3 years ago
15

What is the sum of the seven terms of the geometric series 2- 8+32-...?

Mathematics
1 answer:
egoroff_w [7]3 years ago
6 0
The first term is 2 and the common ratio = -8/2 = -4

S7   = 2 * (-4)^7 - 1
                -------------    =      6554   answer
                  -4-1
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How do you simplify 2/3 divided by 1/3
suter [353]

Answer:

2

Step-by-step explanation:

Solve. To do so, change the division sign into a multiplication sign, and flip the second fraction:

(2/3)/(1/3) = (2/3) x (3/1)

Multiply across:

(2 * 3)/(3 * 1) = (6)/(3)

Simplify:

6/3 = 2

2 is your answer.

~

8 0
3 years ago
A tree initially measured 18 feet tall. Over the next 3½ years, it grew to a final height of 35½ feet. During those 3½ years, wh
stellarik [79]

Answer:

The average yearly growth o

Explanation:

Given that the tree grew from 18 ft 35 1/2 feet in 3 1/2 years.

The growth within these years is:

35 1/2 - 18

= 35.5 - 18

= 17.5

Now, this averages:

17.5/3.5 (3.5 is the number of years)

= 5

The average is 5 ft per year

5 0
1 year ago
Helply help help help
Rainbow [258]
It is D parabola because in a double right circular cone the vertex is in the middle of two opposite cones and cutting through the vertex is making parabola.
6 0
3 years ago
Let f(x)=2x2−8 .
MrRa [10]
Move down c units means minus 2 from whole function

f(x) moved down 2 units means f(x)-2
so

f(x)-2=2x²-8-2
f(x)-2=2x²-10


g(x)=2x²-10
3 0
3 years ago
Read 2 more answers
Distributive property of<br> 36+ 9y
vaieri [72.5K]
Find the greatest common factor (GCF)
in this case it would be 9

divide each term by the GCF
36 / 9 = 4
9y / 9 = y

put the two "new" terms in parenthesis and the GCF in front of it
9 (4 + y)
it could also be 9 (y + 4) because of Commutative Property of Addition
6 0
3 years ago
Read 2 more answers
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