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Vladimir79 [104]
3 years ago
12

For what value of x is quadrilateral CDEF a parallelogram?

Mathematics
1 answer:
kykrilka [37]3 years ago
3 0

Answer:

x = 4

Step-by-step explanation:

Since the diagonals of a parallelogram bisects each other, therefore:

x + 1 = 2x - 3

Collect like terms

x - 2x = -1 - 3

-x = -4

Divide both sides by -1

x = 4

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BARSIC [14]
For the answer to the question above asking <span>how long will it take a mark to recover his investment assuming he has a salary of $32,000 upon graduating?

The answer is </span>Mark will lose:
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Answer:
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6 0
3 years ago
Bill is 2 years older than his brother Will. If the product of their ages is one less than five times the sum of their ages, how
Advocard [28]

Answer:

Will's age = 9 years

Bill's age = 11years

Step-by-step explanation:

Let will age = x

Bill = x +2 since he is 2 years older

x(x+2) = 5( x +x+2) - 1

Opening brackets

x² + 2x = 5(2x + 2) - 1

x² + 2x = 10x + 10 - 1

x² + 2x = 10x + 9

Collect like terms

x² + 2x - 10x - 9 = 0

x² - 8x - 9 = 0

Solve quadratically using factorisation method by finding two factors of +9 that can add up to give -8, the coefficient of x.

The factors are -9 and +1

x² + x - 9x - 9 = 0

x(x + 1) -9( x +1)

x+1) (x -9) =0

x + 1 = 0 or x -9 =0

x = -1 or 9

Age can not be negative

Therefore,

Will's age = 9 years

Bill's age = x+2 = 9+2 = 11years

I hope this was helpful, please rate as brainliest

6 0
3 years ago
2. What type of angle is ACE?<br><br> right<br> acute<br> obtuse<br> straight
cestrela7 [59]
It is a straight angle because it is on a straight line.

Hope this helps :)
3 0
3 years ago
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Ksju [112]

Answer:

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Step-by-step explanation:

The answer is 11 if you have PQSR as the diagram and

(3x-6) degrees & (x+2) degrees in the diagram.

hope this helped!

3 0
3 years ago
Which of the following graphs would not represent the relative frequencies of heads when tossing 1 penny?
tiny-mole [99]

Answer:

the chance of getting heads when flipping a coin is 50%. As I cannot see the graphs, choose the one that shows 50%.

3 0
3 years ago
Read 2 more answers
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