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Black_prince [1.1K]
2 years ago
8

I will give brainliest. Please help fast! (Solve for number 5)

Mathematics
1 answer:
Ne4ueva [31]2 years ago
8 0

Answer:

the area of the parallelogram is 120 units

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Solve 2x2 – 3x = 12 using the quadratic formula.
icang [17]

Quadratic Formula: (-b +/- sqrt(b^2 - 4ac)) / 2a

2x^2 - 3x = 12

2x^2 - 3x - 12 = 0

a = 2

b = -3

c = -12

(--3 +/- sqrt( (-3)^2 - 4(2)(-12) )) / 2(2)

3 +/- sqrt( 9 + 96 ) / 4

3 +/- sqrt(105) / 4

Answers: \frac{3 + \sqrt{105} }{4}, \frac{3 - \sqrt{105} }{4}

Hope this helps!

8 0
3 years ago
What is the x-coordinate of the vertex of the parabola whose equation is y = 3x2 + 9x?
inn [45]
Hello :
y = 3x²+9x
   = 3(x² + 3x )
   = 3 ( x² +2(3/2)x +(3/2)²) -(3/2)²)
   = 3((x+3/2)² -9/4)
y = 3 (x+3/2)² -27/4
<span>the x-coordinate of the vertex  is : - 3/2</span>
8 0
3 years ago
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Find the LCM (least common multiple) of 15 and 8.<br><br> LCM =
vaieri [72.5K]

Answer:

120

Step-by-step explanation:

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enot [183]

Answer:

the correct option is E. d is biased.

Step-by-step explanation:

As given,

The expected value of d hat is not equal to D.

We know that,

The unbiased-ness is the property that tells the expected value of d is equal to D

So, the correct option is E. d is biased.

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<span>83.212121 or fraction form is </span>83 7/33​<span> </span>
7 0
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