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2 years ago

Which is the sum of the first 6 terms of the geometric series? 7+21 +63

Mathematics

1 answer:

Gwar [14]2 years ago

5 0

Answer:

2,548

Step-by-step explanation:

First, we have to find out the rule. The rule is multiply the previous number by 3 to get the next number.

7x3=21

21x3=63

So, we would continue this pattern until we have the first 6 numbers which are 189, 567, and 1701.

The questions is asking for the SUM of the 6 numbers so you would add the those numbers and do this equation:

7+21+63+189+567+1701= 2548

Hope this helps! :)

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Mr. Chang wants to retire in 10 years. He deposits $650.00 every three months into his retirement investment account. If the acc

Fittoniya [83]

Answer:

Mr. Chang will have 15714.90 dollars.

Step-by-step explanation:

p = 650

r = $7.8/4/100=0.0195$

Number of periods or n = $5\times4=20$

Future value formula is : $p[\frac{(1+r)^{n}-1}{r} ]$

Putting the values in formula we get;

$650[\frac{(1+0.0195)^{20}-1}{0.0195} ]$

= $15714.90

Hence, Mr. Chang will have 15714.90 dollars.

5 0

3 years ago

Paolo is using his grandmother’s cookie recipe. He always doubles the amount of chocolate chips and oats. The recipe calls for 2

lesya692 [45]

Answer:

6 1/3 divided by 2 1/2 = x

Step-by-step explanation:

Hope this helps.

6 0

2 years ago

Find the attached question.

inessss [21]

p=70°

q=32°

r=38°

Answer:

Solution given:

r=38°[inscribed angle on a same arc are equal]

p=½*140°=70°[inscribed angle is half of the central angle]

<OBA=38°[base angle of isosceles triangle]

again

<C=<B[inscribed angle is half of the central angle]

70°=<OBA+q

70°=38°+q

q=70°-38°

q=32°

5 0

2 years ago

What is the distance between (-6, -2) and (2, 4)?

ICE Princess25 [194]

Answer:

Step-by-step explanation:

distance = √(-6-2)^2+(-2-4)^2

Ans=10

8 0

2 years ago

Read 2 more answers

5, 7, 11, 19 Neither Geometric Arithmetic

dimaraw [331]

Arithmetic sequence

Explanation

An arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence

Step 1

Let

$\begin{gathered} a_1=5 \\ a_2=7 \\ a_3=9 \\ a_4=11 \end{gathered}$ $\begin{gathered} a_2-a_1=7-5=2 \\ a_3-a_2=9-7=2 \\ a_4-a_3=11-9=2 \end{gathered}$

so, the difference is always the same, 2

Hence, the answer is a Arithmetic sequence

6 0

1 year ago