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kompoz [17]
3 years ago
6

Find the value of x that makes ABCD a parallelogram.

Mathematics
1 answer:
harkovskaia [24]3 years ago
8 0

Answer:

x = 10

Step-by-step explanation:

A parallelogram's angles should all add up to 360 degrees. 130+130 is equal to 260 degrees. 360-260 is equal to 100. Because we need to find the individual angles of Angle A and Angle C, we will divide 100 by two. That leaves us with 50 degrees for Angle A and Angle C EACH. We know Angle C is equal to 5x. So, we would divide 50 by 5, which leaves us with 10 degrees. Therefore, x = 10.

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2x+3y=19 // 6x+2y=22​
zvonat [6]

Answer:

(2, 5 )

Step-by-step explanation:

Given the 2 equations

2x + 3y = 19 → (1)

6x + 2y = 22 → (2)

Multiplying (1) by - 3 and adding to (2) will eliminate the x- term

- 6x - 9y = - 57 → (3)

Add (2) and (3) term by term to eliminate x

0 - 7y = - 35

- 7y = - 35 ( divide both sides by - 7 )

y = 5

Substitute y = 5 into either of the 2 equations and solve for x

Substituting into (1)

2x + 3(5) = 19

2x + 15 = 19 ( subtract 15 from both sides )

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 5 )

7 0
3 years ago
Read 2 more answers
Can someone help me please, its geometry
ahrayia [7]

Answer:

2n

Step-by-step explanation:

Pythagoras a^{2} + b^{2} = c^{2}

2 squared plus 2 squared = 8 but you need to find out the root of 8,

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5 0
3 years ago
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Find three cases consecutive integers whose sum is 363
Scilla [17]

Answer:

120,121,122

Step-by-step explanation:

4 0
3 years ago
HELP ME DO THIS PLZZZZ
andrezito [222]

Answer:

Step-by-step explanation:

y = -x^2+4x-6x +24

y = -x^2 -2x + 24

Vertex (x) = 2/-2 = -1

Vertex (y) =  -100/ -4 = 25

Vertex (-1, 25)

axis of symmetry: x= -1

-x^2 -2x + 24 = 0

Δ/4 = 1+24 = 25

x1 = (1 + 5)/-1 = -6

x2 = (1-5)/-1 = 4

left x intercept = (-6,0)

right x intercept = (4,0)

The DOMAIN is the set of all numbers

The range is y less than or equal to 25

4 0
3 years ago
Someone please help! Thank you
borishaifa [10]
I think the answer would be D, but I’m not sure.
3 0
3 years ago
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