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dimulka [17.4K]
3 years ago
11

What are the values of a1 and r of the geometric series?

Mathematics
2 answers:
serg [7]3 years ago
7 0

Answer:

the answer is c on edg

Step-by-step explanation:

igor_vitrenko [27]3 years ago
5 0
A1 or just a as it is in the equations is just the initial term of the sequence.  In this case a1=1

r is the common ratio which is that constant ratio found by dividing any term by the term preceding it...

In this case r=3/1=9/3=27/9=etc=3

So a1=1 and r=3, C. is your answer.
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1. Why do you think the rule is called the difference of two squares?
WARRIOR [948]

Answer:

Below.

Step-by-step explanation:

1.  a^2 - b^2 = (a - b)(a + b)

a^2 and b^2 are 2 perfect squares and a^2 - b^2 are their difference.

2. The order of multiplication does not matter because in algebra  multiplication is commutative ( meaning any order gives the same result).

3 0
3 years ago
What is the solution to 2(-4x+1)=2/3(x+2)
Rzqust [24]

Hello!

The answer to your problem is: x=1/13

<u>Simplify both sides of the equation</u>

(2)(-4x)+(2)(1)=(2/3)(x)+(2/3)(2) (Distribute)

-8x+2=2/3x+4/3

<u>Subtract 2/3x from both sides</u>

-8x+2-2/3x=2/3+4/3-2/3x

-26x+2=4/3

<u>Subtract 2 from both sides</u>

-26/3x+2-2=4/3-2

-26/3=-2/3

<u>Multiply both sides by 3/(-26)</u>

(3/26)*(-26/3x)=(3/-26)*(-2/3)

<u>Get your answer</u>

x=1/13

Hope This Helps!

8 0
3 years ago
Mariana runs at a rate of 260 meters per minute.<br><br> How far does she run in 6 minutes?
My name is Ann [436]

Answer:

1560 meters

Step-by-step explanation:

All u had to do was multiply 260 and 6 together and then you get your answer

8 0
3 years ago
The graph below shows the total cost for lunch, c, when Will and his friends buy a large salad to share and several slices of pi
melamori03 [73]

Answer:

The correct option is <u>$2.50</u>.

Step-by-step explanation:

This can be determined by calculating the change in total cost of lunch using the data given in the question as follows:

Slice of pizza     Total cost of lunch ($)    Change in total cost of lunch ($)

         0                                7.5                                          -

         1                                 10                                          2.5

         2                                12.5                                       2.5

         3                                 15                                          2.5

         4                                 17.5                                       2.5

         5                                 20                                         2.5

         6                                 22.5                                      2.5

         7                                 25                                         2.5

         8                                 27.5                                      2.5

Since the change in total cost of lunch in table abov is constant at $2.50, this implies that for each additional slice of pizza that is purchased, the total cost of lunch increases by $2.50.

Therefore, the correct option is <u>$2.50</u>.

7 0
3 years ago
Read 2 more answers
Can you read each graph for its unit rate and type the correct code? Please remember to type in ALL CAPS with no spaces
Ray Of Light [21]

Answer:

1.5, 20, 40, 7.5

Step-by-step explanation:

The first one is 1.5, the second one is 20, the third is 40, and the fourth is 7.5

5 0
2 years ago
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