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yaroslaw [1]
3 years ago
11

Find the 50th term for the sequence 31,24, 17

Mathematics
1 answer:
Nikitich [7]3 years ago
6 0

9514 1404 393

Answer:

  -312

Step-by-step explanation:

The general term of an arithmetic sequence is ...

  an = a1 +d(n -1)

Here, you have first term a1 = 31, and common difference d = 24-31 = -7. So, the 50th term is ...

  a50 = 31 -7(50 -1) = 31 -7(49) = -312

The 50th term for the sequence is -312.

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Quadratic equations<br> m^2-12=m
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Step-by-step explanation:

m² -12 = m

m² = m + 12

m = \sqrt{m + 12\\}

4 0
3 years ago
The price of a television was reduced from $2000 to $1400. By what
meriva

Answer:

30%

Step-by-step explanation:

2000-----100%

1400------x%

x=(1400×100)÷2000

X=70%

final we go 100%-70%=30%

Television price reduced for 30%

6 0
3 years ago
The center of circle q has coordinates (-2, 1). if circle q passes through r (6, 7), what is the length of its diameter?
Oksana_A [137]
<h2>Diameter of a Circle</h2>

There are multiple strategies we can use to find the diameter of a circle. For this question, we must calculate the length of the radius first and multiply by 2 to find the diameter.

<h2>Solving the Question</h2>

We're given the centre and a point on the circumference: (-2,1),(6,7).

Find the distance between them using the distance equation:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Plug in the given points:

d=\sqrt{(-2-x_1)^2+(1-y_1)^2}\\d=\sqrt{(-2-6)^2+(1-7)^2}\\d=\sqrt{(-8)^2+(-6)^2}\\d=\sqrt{64+36}\\d=\sqrt{100}\\d=10

Therefore, the radius of the circle is 10 units.

Multiply the radius by 2 to find the length of the diameter:

10 × 2

= 20

Therefore, the length of the diameter is 20 units.

<h2>Answer</h2>

20 units

7 0
2 years ago
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Answer:

1: about 12min 2:yes 3: 55 4: 5

Step-by-step explanation: why do you ask

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I’ll mark Brainly-ist to the correct answer
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Answer:

0.693

Step-by-step explanation:

In 2 = 0.69314718

       =0.693

6 0
3 years ago
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