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ehidna [41]
2 years ago
7

Please help and show work if you can I only need 10, 11 and 12​

Mathematics
1 answer:
postnew [5]2 years ago
6 0

Answer:

Step-by-step explanation:

10). AD = BC [If ABCD is a parallelogram]

     3x + 1 = 6x - 4

     6x - 3x = 1 + 4

     3x = 5

     x = \frac{5}{3}

11). If ABCD is a parallelogram,

     AB = CD

     5x - 8 = 2x + 7

     5x - 2x = 7 + 8

     3x = 15

     x = 5

12). If ABCD is a parallelogram,

     AB = CD

     AB║CD and BD is a transversal intersecting these parallel lines.

     ∠ABD ≅ ∠BDC [Alternate interior angles]

     4x - 1 = x + 38

     4x - x = 38 + 1

     3x = 39

     x = 13

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Sladkaya [172]

Since we don't have a figure we'll assume one of them is right and we're just being asked to check if they're the same number.  I like writing polar coordinates with a P in front to remind me.

It's surely false if that's really a 3π/7; I'll guess that's a typo that's really 3π/4.

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That's true since when we add pi to an angle it negates both the sine and the cosine,

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3 years ago
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podryga [215]
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Hope this helps! :)
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3 years ago
It takes 99 apples to make 9 pies. How many apples would it take to 4 pies? (Hint simplify your ratio first)
kolbaska11 [484]

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lutik1710 [3]

Answer: -4x-34y-32

(I think this is right but I am not completely sure... if its not I am sorry :/ )

Step-by-step explanation:

First Way:

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3 years ago
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nasty-shy [4]
I would choose A I’m not to sure tho
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3 years ago
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