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3 years ago

I have no clue what to do I need help ASAP

Mathematics

1 answer:

eduard3 years ago

5 0

Answer:

The correct option is 8.

Therefore the value of x is 8.

Step-by-step explanation:

Given:

KLMN is a Parallelogram

MK = 40

FK = 2x + 4

To Find:

x = ?

Solution:

KLMN is a Parallelogram ...............Given

Diagonal of a Parallelogram Bisect each other ....Property of Parallelogram

∴ $FK =\dfrac{1}{2}MK$

Substituting FK and MK we get

$2x+4=\dfrac{1}{2}40=20\\\\2x=20-4=16\\\\x=\dfrac{16}{2}=8\\\\x=8$

Therefore the value of x is 8.

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Answer:If it has 4 equal sides

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3 years ago

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Can someone answer these questions ? thank you

Naya [18.7K]

Answer:

Step-by-step explanation:

12a)To rationalize the denominator, multiply the denominator and numerator by √5.

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5 0

4 years ago

Thirty Mercedes and Audi participated in a 30 mile race. The average driving speed of the Mercedes and Audi were recorded. A ran

vladimir1956 [14]

Answer:

Median for sample 1 = 142

Median for sample 2 = 134

Step-by-step explanation:

For Sample 1:

For finding median, the data is first arranged into ascending or descending order. We are arranging the data in ascending order.

120, 130, 132, 136, 139, 142, 142, 144, 156, 165, 167

The formula for calculating the term which will be median is:

Median= ((n+1)/2)

Here in sample 1, n=11

So, putting n=11 in the formula

= ((11+1)/2)

= (12/2)

=6th term

The sixth term is 142, so

Median of sample 1=142

For Sample 2:

For finding median, the data is first arranged into ascending or descending order. We are arranging the data in ascending order.

112, 112, 113, 114, 125, 134, 141, 145, 146, 163, 165

The formula for calculating the term which will be median is:

Median= ((n+1)/2)

Here in sample 2, n=11

So, putting n=11 in the formula

=((11+1)/2)

=(12/2)

=6th term

The sixth term is 134, so

Median of sample 2=134

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4 years ago

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3 years ago

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I'm really confused about this question about Solving Systems by Elimination

velikii [3]

Answer:

x=10

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Step-by-step explanation:

1)add the equations and find what x is.

x-y=8

+x+y=12

—————

2x=20

— —

2 2

x=10

3)fill in x for the second equation.

x+y=12

since x=10,replace x with 10.

10+y=12.

subtract 19 from both sides.

10+y=12

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—————-

y=2

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3 years ago