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maksim [4K]
3 years ago
14

What is the value of a

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
8 0

Answer: Multiplying 3x and -x we obtain A= -3x^2

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What is the sum of the first eight terms of the geometric series 2 + 6 + 18 + 54 + … ?
navik [9.2K]
Hello,
u_{1} =2\\
 u_{2} =2*3\\
 u_{3} =2*3^2\\
...
 u_{8} =2*3^7\\

\sum_{i=0}^7\ 2*3^i\\
=2(1+3+3^2+...+3^7)\\
=2* \dfrac{3^8-1}{3-1}\\
=2* \dfrac{6560}{2} \\
=6560

8 0
3 years ago
Can someone help me? i dont understand 3
Helga [31]

Answer:

What to know about the lines is the exact point is 0 what you need to know to find that is answer 1,  2 and 3

Step-by-step explanation:

6 0
2 years ago
Can you guys help me
ra1l [238]

Answer:

x = 9

Step-by-step explanation:

9 to the sixth power = 531441

9 to the third power = 729

531441 = x cubed × 729

Divide by 729 on both sides.

531441 divided by 729 equals 729

729 divided by 729 equals 0

729 = x cubed

Find cube root

9x9x9 =729

Cube root of 729 is 9

x=9

7 0
3 years ago
!!20 POINTS!!
Sidana [21]

Answer:33.415 through 33.585 Or A

Step-by-step explanation:

You simply take 33.5 and add .085 to 33.5 get your answer.then subtract .085 from 33.5

6 0
3 years ago
John wants to sell 40% of his rookie player card collection there are hundred cardinals collection how many of the cards does Jo
Dovator [93]
40 is your answer because 40% of 100 is 40
4 0
3 years ago
Read 2 more answers
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