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irina1246 [14]
3 years ago
13

Find the 12th term of the geometric sequence 1, -4, 16

Mathematics
1 answer:
nignag [31]3 years ago
5 0

Answer:

⇒ common ratio =r=3 and the given sequence is geometric sequence. Where an is the nth term, a is the first term and n is the number of terms. ⇒ 12th term is 708588 .

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Does anyone know how to <br> Solve the system of equations.<br><br> ​<br><br> ​ −3x+y=2<br> 7x−8y=1
Fantom [35]
You could use the substitution method. in this you’ll solve one equation for one variable. we’ll do the first one for y.
add 3x to both sides, so y = 3x + 2
then add that into the other equation for y.
7x - 8(3x +2) = 1
7x- 24x - 16 = 1
-17x - 16 = 1
-17x = 17
x= -1
now that you know what x is, you can find out y with the equation we made earlier. y = 3x+2
y = 3(-1) + 2
y = -3 + 2
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6 0
2 years ago
Which of the following is equal to 7 1/4
fiasKO [112]

Answer:

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Step-by-step explanation:

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3 years ago
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Ivahew [28]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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The store paid $2.70 for a book and sold it for $6.20. What is the profit as a percent?
Darina [25.2K]
Hi. I think the answer is 56%. To get the amount that is the profit you find the difference between 6.20 and 2.70 which is 3.50. Then you find 3.5/6.2 to find the percentage which is 0.56 or 56%.

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Name all sets square root of 27 belongs to please help me quick !
lesantik [10]

Details about all sets square root of 27 is given below.

Step-by-step explanation:

1. Square Root of 27

To an accuracy of at least . 01%, the square root of 27 is 5.196.

2. 27 = 33 = 32 * 3

sqrt(27) = sqrt(32 * 3)

= 3*sqrt(3)

sqrt(3) can't be expressed as the ratio of integers and when written as a decimal it does not terminate, so it is irrational.

Thus sqrt(27) is itself irrational.

3. Simplest form of √27

27 is not a perfect square so it does it have an exact square root.

√27 is an irrational number, but it can be written in surd form:

√27=√3×3×3.

=3√3.

4. Is 27 a perfect square number? A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 27 is about 5.196. Thus, the square root of 27 is not an integer, and therefore 27 is not a square number.

5. The number 27 can be evenly divided by 1, 3, 9 and 27, with no remainder. Since 27 cannot be divided by just 1 and 27, it is a composite number.

6. 27. All terminating decimal numbers are rational.All irrational numbers are real.

7. For 27 to be an integer, 27 has to be a whole number. Furthermore, for 27 to be an integer, you should be able to write 27 without a fractional or decimal component. 27 is a whole number that can be written without a fractional component, thus 27 is an integer.

8 0
3 years ago
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