3 years ago

What value of x is in the solution set of 3(x – 4) > 5x + 2?

Mathematics

2 answers:

denis-greek [22]3 years ago

6 0

Answer:

The correct answer is -5

Step-by-step explanation:

lina2011 [118]3 years ago

3 0

Answer:

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Find the sum of the squares of the roots of 3x^2 + 4x + 12 = 0

Contact [7]

Answer:

-56/9

Step-by-step explanation:

Let p and q be the roots of the equation.

So, here's how we're gonna work it out:

${p}^{2} + {q}^{2} = \\ {p}^{2} + {q}^{2} +2 pq - 2pq = \\ ( {p}^{2} +2pq + {q}^{2}) - 2pq = \\ {(p + q)}^{2} - 2pq$

Vieta's formulas give us the sum and the product of the roots of a quadratic equation. Using them we obtain:

p + q = -b / a = - 4 / 3
p × q = c / a = 12 / 3 = 4

${(p + q)}^{2} - 2pq = \\ {( - \frac{ 4}{3} )}^{2} - 2 \times 4 = \frac{16}{9 } - 8 = \\ \frac{16 - 72}{9} = - \frac{56}{9}$

4 0

3 years ago

-10x - 135 = 117 + 2x<br><br> A. -18<br><br> B. 22<br><br> C. 25<br><br> D. -21

Mice21 [21]

la respuesta que encontré yo fue la c

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3 years ago

A collector of scale model of ships wants to know the length of a 1/69 scale model of a ship that was 207 feet in length. Find t

Tresset [83]

I think 3 because if u divide 207 by 69 you get 3

4 0

3 years ago

Which of the sets shown include the elements of Set Z that are both even numbers and multiples of 3? Z = {–12, –10, –9, –1, 3, 6

gregori [183]

Answer:

B. -12,6

Step-by-step explanation:

6 0

4 years ago

Write the factor pairs for 46

Natali5045456 [20]

• Factors of 46 =1, 2, 23, 46.

• Distinct Factors of 46 = 1, 2, 23, 46.

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3 years ago