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Sedaia [141]
3 years ago
9

What is the sum of the first 20 terms of a finite geometric series where a1 =3 and r = 3/2

Mathematics
1 answer:
Svetllana [295]3 years ago
8 0

Answer: The answer should be 6

Step-by-step explanation:

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Solve by completing the square and show steps <br> x^(2)+6x+5=0
Crazy boy [7]
X ^2 +6x+ 5
(x+2)(x+3)

2 + 3 = 5
While also 2•3= 6
The two numbers have to equal b when multiplied and c when added
4 0
3 years ago
Solve the following equation and verify the results<br>4(2x-3)+5(3x-4)=16​
Licemer1 [7]

Answer:

I got x=48/23 or 2 2/23

Step-by-step explanation:

7 0
2 years ago
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If a=12 and b=23 what is the area of pencil decoration
Allushta [10]
I think the answer is 276
12 * 23 = 276
hope it helps
7 0
3 years ago
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Which ratio is higher 15:20 or 12:16. for 35 points
Margarita [4]

To find which ratio is higher, we can first convert the ratios into fractions (that makes it easier, at least for me) and then simplify the fractions and see which one is greater.

Since ratios are basically division, 15:20 = \frac{15}{20}, and

12:16 = \frac{12}{16}

Now we simplify these fractions. 15 and 20 have a GCF of 5, so taking out the common number gives us the simplified fraction of \frac{3}{4}.

12 and 16 have a GCF of 4, so taking out the common number gives us the simplified fraction of \frac{3}{4}. Since \frac{3}{4} = \frac{3}{4}, these ratios are the same.

8 0
3 years ago
Find the length of the missing
Ivahew [28]

Answer:

12

Step-by-step explanation:

using pythagoras theorem

here 15 is hypotenuse since it is opposite 0f 90 degree

9 and x are the other smaller sides of a triangle

according to pythagoras thorem the sum of square of two smaller sides of a triangle is equal to the square of hypotenuse. So,

9^2 + x^2 = 15^2

81 + x^2 = 225

x^2 = 225 - 81

x^2 = 144

x = \sqrt{144

x = 12

5 0
2 years ago
Read 2 more answers
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