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4 years ago

How to write the sum of 8 and 3 times a number is 23.

Mathematics

1 answer:

Brut [27]4 years ago

7 0

Answer:

8*3=23

Step-by-step explanation:

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Answer:

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3 years ago

Solve 4(2x - 3) = 6x + 2

Aleks [24]

X=7 hope it helps!!!!

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3 years ago

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Please help me with the problems in my picture

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3 years ago

Four less than the square of a number

matrenka [14]

Answer: x² - 4

Four less than the square of a number

↓ ↓

(Take away 4) x²

Four less than the square of a number = x² - 4

6 0

3 years ago

Geometric sequences HELP ASAP!

Pani-rosa [81]

Given:

The table for a geometric sequence.

To find:

The formula for the given sequence and the 10th term of the sequence.

Solution:

In the given geometric sequence, the first term is 1120 and the common ratio is:

$r=\dfrac{a_2}{a_1}$

$r=\dfrac{560}{1120}$

$r=0.5$

The nth term of a geometric sequence is:

$a_n=ar^{n-1}$

Where a is the first term and r is the common ratio.

Putting $a=1120, r=0.5$ , we get

$a_n=1120(0.5)^{n-1}$

Therefore, the required formula for the given sequence is $a_n=1120(0.5)^{n-1}$ .

We need to find the 10th term of the given sequence. So, substituting $n=10$ in the above formula.

$a_{10}=1120(0.5)^{10-1}$

$a_{10}=1120(0.5)^{9}$

$a_{10}=1120(0.001953125)$

$a_{10}=2.1875$

Therefore, the 10th term of the given sequence is 2.1875.

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3 years ago