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allochka39001 [22]
3 years ago
6

What is the solution set of the equation 6x^2 - 18x - 18 =6?

Mathematics
1 answer:
dybincka [34]3 years ago
3 0

Answer:

The solution set is {4, -1}

Step-by-step explanation:

6x²- 18x -18 = 6

6x²- 18x -18 - 6 = 0

6x²- 18x -24 = 0

6(x² - 3x - 4) = 0

6(x - 4)(x + 1) = 0

6 = 0 not true

x - 4 = 0 ;   x + 1 = 0

x = 4           x = - 1

The solution set is {4, -1}

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2x + 3y = 6
Andreyy89

Answer:

A)

Step-by-step explanation:

You just basically substitute the coordinates into the equation

2x+3y =6

2(0) +3y =6

y=2

5 0
2 years ago
Which of the following is NOT a formula for determining complementary probability?
forsale [732]

<em>Question:</em>

<em>Which of the following is NOT a formula for determining complementary probability?</em>

<em>A. P(outcome) = 1- P(-outcome)</em>

<em>B. P(outcome) - P(-outcome) = 1</em>

<em>C. P(outcome) + P(-outcome) =1</em>

<em>D. P(-outcome) = 1 - P(outcome)​</em>

<em></em>

Answer:

P(outcome) - P(-outcome) = 1

Step-by-step explanation:

Required

Determine which option is not a formula of complementary probabilities

From the list of given options, the complementary probabilities are P(outcome) and P(-outcome)

In probability;

P(outcome) + P(-outcome) = 1 --- Equation 1

Subtract P(outcome) from both sides

P(outcome) - P(outcome) + P(outcome) = 1 -  P(outcome)

P(-outcome) = 1 - P(outcome)  ------ Equation 2

Subtract P(-outcome) from both sides of equation 1

P(outcome) + P(-outcome) - P(-outcome) = 1 -  P(-outcome)

P(outcome)  = 1 -  P(-outcome)

Equation 1, 2 and 3 represents options A, C and D

While option B is out of place

<em>Hence, option B is not a formula of complementary probability</em>

3 0
4 years ago
<img src="https://tex.z-dn.net/?f=0%20%3D%20%20%7B%20x%7D%5E%7B2%7D%20%20-%2018%20%2B%2064" id="TexFormula1" title="0 = { x}^{2
timurjin [86]

Answer:

x = \sqrt{- 46}

Step-by-step explanation:

x^{2} - 18 + 64 = 0

x^{2}  + 46 = 0

x^{2} = - 46

x = \sqrt{- 46}

6 0
3 years ago
2×103 find the value
kicyunya [14]

Answer:

206.

Step-by-step explanation:

100x2 = 200

3x2 = 6

200+6 = 206

6 0
3 years ago
Read 2 more answers
Frank has a compass but no straightedge. Which of the following can Frank construct with just the compass?
romanna [79]

Answer:

D. a circle

Step-by-step explanation:

4 0
3 years ago
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