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Contact [7]
3 years ago
5

Using sigma notation write the geographic series: 6+12+24+48+96

Mathematics
1 answer:
Alika [10]3 years ago
4 0

Answer:

$$\sum_{n=1}^{5} 6(2^{n-1}) $$

Step-by-step explanation:

6 + 12 + 24 + 48 + 96 =

= 6 + 6 * 2 + 6 * 4 + 6 * 8 + 6 * 16

= 6 + 6 * 2^2 + 6 * 2^2 + 6 * 2^3 + 6 * 2 * 4

= 6 * 2^(n - 1)

$$\sum_{n=1}^{5} 6(2^{n-1}) $$

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A 16-ounce bottle of spring water is $1.76. A 20-ounce bottle of fresh water is $2.40. which statement about the unit prices is
faltersainse [42]

your answer is b spring water has a lower unit price of $0.12/ounce

8 0
3 years ago
Read 2 more answers
Ricky walked a total of 4 3/4
Helga [31]

Answer:

19

Step-by-step explanation:

Is he stop every 1/4 mile you get 19

There are 4 1/4 miles in every mile. 4x4(Equation of total 1/4th's in 4 miles) is 16. Add 3 more 1/4th's to get 19

Hope this helps!

7 0
3 years ago
Please help me and don’t spam ✨✌ thxx
earnstyle [38]

So you multiple all the numbers together and you get a certain number, after you have the number you use the unit, which is "ft" (feet) so the answer would be (numbers from multiping) then put ft

5 0
3 years ago
An isosceles triangle in which the two equal sides, labeled a, are longer than the base, labeled b.
Vilka [71]

The side labeled "a" is made the longer side. These are the two congruent sides. So a > b.

We are told that the longer side is 6.3, so a = 6.3, meaning that

2a+b = 15.7

2(6.3)+b = 15.7

12.6+b = 15.7

b = 15.7-12.6

b = 3.1

The triangle has sides of: 6.3, 6.3, 3.1

The perimeter is 6.3+6.3+3.1 = 15.7

Going back to the question "which equation can be used to find the length of the base?", it sounds like either you were given a list of multiple choice answers, or you just fill in the blank. If multiple choice, then try to see which answer matches with what I wrote above. If fill in the blank, then I would just enter either 2(6.3)+b = 15.7 or 12.6+b = 15.7

6 0
3 years ago
Help -8(9n-10) -20 a. 90n+54 b. -72n+60 c. -17n – 80 d. -160n
Anna [14]

Answer:

1)  -8(9n-10) - 20

-72n + 80 - 20

-7n + 60

Can't factor

2) 90n+54

18(5n+3)

3) -72n+60

-12(6n-5)

4) -17n - 80

Can't factor

5) -160n

Can't factor

3 0
3 years ago
Read 2 more answers
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