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NemiM [27]
3 years ago
13

What is the solution set of 4x 2 - 36 = 0? A.{-3} B.{3} C.{-3, 3}

Mathematics
2 answers:
Dima020 [189]3 years ago
5 0
It is short work to check the answer choices.
  4*3² -36 = 0 . . . . yes, so +3 is a solution
  4*(-3)² -36 = 0 . . . . yes, so -3 is a solution

The appropriate choice is ...
  C. {-3, 3}
Nimfa-mama [501]3 years ago
4 0
4x^2 - 36 = 0
4x^2 = 36
x^2 = 9
x = 3 or -3
the answer is C
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Step-by-step explanation:

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2 years ago
50 POINTS
Tcecarenko [31]

Answer:

<u>Part 1: C. $3,159.30</u>

<u>Part 2. C. –5; –135; –10,935</u>

Step-by-step explanation:

Part 1:

Price of the boat = $ 16,600

Depreciation rate = 14% = 0.14

Time of utilization of the boat = 11 years

Price of the boat after 11 years = Original price * (1 - Depreciation rate)^Time of utilization of the boat

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<u>Price of the boat after 11 years = $ 3,159.30</u>

Part 2:

Let's find out the first term of the sequence given:

A(1) = -5 * 3¹⁻¹

A(1) = -5 * 1

A(1) = -5

Let's find out the fourth term of the sequence given:

A(4) = -5 * 3⁴⁻¹

A(4) = -5 * 3³

A(4) = -5 * 27

A(4) = -135

Let's find out the eighth term of the sequence given:

A(8) = -5 * 3⁸⁻¹

A(8) = -5 * 3⁷

A(8) = -5 * 2,187

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2 years ago
X - 3y = 6 and x - 3y = 9
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This table shows information about the number of
tatiyna

Answer:

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Step-by-step explanation:

To find the mean,

We use Σfx/Σf

Σfx =150+234+189+84+0+60

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Σf= 6+9+7+3+0+2

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Σfx/Σf= 717/27

26.6

6 0
2 years ago
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