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2 years ago

Which statement describes the system of equations?

Mathematics

1 answer:

Masja [62]2 years ago

7 0

Answer:

1.) It has one solution (–5, 5).

if you click on the photo it will show you how to get the answer. I hope this helps you.

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What is the common ratio and explicit formula for -2,6,-18,54?

Snezhnost [94]

Answer:

The explicit formula for a given geometric sequence is of the form

$a_{4} =\frac{1}{(a_{1})^4}$

Step-by-step explanation:

Given sequence is ${\{-2,6,-18,54}\}$

Let $a_{1}=-2,a_{2}=6,a_{3}=-18,a_{4}=54$

To find the common ratio r:

$r=\frac{a_{2}}{a_{1}}$

$=\frac{6}{-2}$

$=-3$

Therefore r=-3

$r=\frac{a_{3}}{a_{2}}$

$=\frac{-18}{6}$

$=-3$

Therefore r=-3

Therefore common ratio is -3

Therefore given sequence is geometric sequence.

The explicit formula for a geometric sequence is $a_{n}=a_{1}^{r-1}$ , where common ratio is r.

From given sequence we are having r=-3

Therefore the explicit formula for a given geometric sequence is of the form $a_{4} =a_{1}^{-3-1}$

$a_{4} =a_{1}^{-4}$

$a_{4} =\frac{1}{(a_{1})^4}$

6 0

3 years ago

Use properties to evaluate 7/5(1/4 divide 7/4)(-10)

cricket20 [7]

The answer isssssss c -2

3 0

3 years ago

Pls help its for my final

ASHA 777 [7]

3.16227766017 because I did the math and yea I think that’s correct

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2 years ago

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Is 3 squared • 4 squares = 12? Evaluate each side of the equation

Paladinen [302]

No because 4 square equals 2 square and since 3 isn't a perfect number, it would be 2 square times 3 square, which equals 6 square.

8 0

3 years ago

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What is the solution to the equation-0.2(x-20)=44-x

Black_prince [1.1K]

Answer:

x = 50

Step-by-step explanation:

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2 years ago

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