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4 years ago

For what value of x is quadrilateral CDEF a parallelogram? x=? (TEST)

Mathematics

2 answers:

JulsSmile [24]4 years ago

8 0

Answer:

Step-by-step explanation:

Dmitrij [34]4 years ago

5 0

Answer:

the value of x is 5.

Step-by-step explanation:

We know that when diagonals bisect each then it is divided into two equal parts .so

x - 2 = 2x - 7

2x - x = 7 - 2

x = 5

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Help with number 50 please. Thanks.

Blizzard [7]

Answer:

$d = 7 + 3\sqrt{3}$ and

$d = 7 - 3\sqrt{3}$

Step-by-step explanation:

To solve the equation, $d^2 - 14d - 22 = 0$ , using the quadratic formula,

Recall: quadratic formula = $\frac{-b ± \sqrt{b^2 - 4ac}}{2a}$

Where,

a = 1

b = -14

c = 22

Plug in your values into the formula and solve:

$\frac{-(-14) ± \sqrt{(-14)^2 - 4(1)(22)}}{2(1)}$

$\frac{14 ± \sqrt{196 - 88}}{2}$

$\frac{14 ± \sqrt{108}}{2}$

$d = \frac{14 + \sqrt{108}}{2}$

$d = \frac{14 + 6\sqrt{3}}{2}$

$d = (\frac{2(7 + 3\sqrt{3})}{2}$

$d = 7 + 3\sqrt{3}$

And

$d = \frac{14 - \sqrt{108}}{2}$

$d = \frac{14 - 6\sqrt{3}}{2}$

$d = (\frac{2(7 - 3\sqrt{3})}{2}$

$d = 7 - 3\sqrt{3}$

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At the last minute, the technology company decides to expand the warehouse and asks the general contractor to double the dimensi

Lesechka [4]

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12. The width of a rectangle is 16.55 inches. The length of the rectangle is half its width.

zepelin [54]

The answer is D

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stellarik [79]

Answer:

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Step-by-step explanation:

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