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blsea [12.9K]
3 years ago
10

Which number is NOT in the solution set of x − 9 > 3? A) 11 B) 13 C) 15 D) 17

Mathematics
2 answers:
densk [106]3 years ago
7 0

Answer:

A

Step-by-step explanation:

Given

x - 9 > 3 ( add 9 to both sides )

x > 12

13, 15 and 17 are all greater than 12

However, 11 is less than 12 and is not in the solution set → A

Vesna [10]3 years ago
3 0

Answer:

A) 11.

Step-by-step explanation:

x − 9 > 3     Add 9 to both sides:

x > 3 + 9

x > 12.

The only number in the list that is not greater than 12 is 11.

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Find the 88th term of the arithmetic sequence 26, 28, 30, ...
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Answer:

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Step-by-step explanation:

The nth term of an arithmetic sequence is given as:

f(n) = a + (n - 1)d

where a = first term

d = common difference

The first term of the sequence is 26 and the common difference is 2 (28 - 26 = 2)

The 88th term of the sequence is therefore:

f(88) = 26 + (88 - 1)*2

f(88) = 26 + (87 * 2)

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<h2>The value of x "option A) 12.5" is required answer.</h2>

Step-by-step explanation:

In given figure,

Base (b) = 11 and Angle = 28°

To find, the value of x = ?

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