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podryga [215]
3 years ago
10

If BC = 2x, CD = 7x, and BD = 9, what is CD?

Mathematics
1 answer:
Paha777 [63]3 years ago
8 0

Answer: 18

Step-by-step explanation:

2(9)=18

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Please answer please
Murrr4er [49]

<BAC = <DEC = 30°

<BCA = <DCE = 70°

<CDE (or m<D) = 180° - <DEC - <DCE

<CDE = 180° - 30° - 70°

<CDE = 80°

The number that belongs in the green box is 80

3 0
3 years ago
PLEASE HELP
Gekata [30.6K]

Answer:

a. n x (2n +1) = 10

b. length: 5 width: 2

Step-by-step explanation:

5 is 1 more then 2 times 2

7 0
3 years ago
Evaluate -29 - X<br> when x = 6
notka56 [123]

Answer:

wouldn't that just be -35?

Step-by-step explanation:

you just have to do -29-6

6 0
3 years ago
Given m ZLMN = 145°, what is m ZXMN?<br> Show all relevant work.
myrzilka [38]
80 degrees. 145 = (4x+5) + (6x-10) = 10x-5... so 10x = 150, x = 15. LMN = 6x-10 = 6(15) - 10 = 80.
4 0
3 years ago
1. James and Alexis simplified the expression 5 + 42 - 6/3. James' said the answer is
Trava [24]

Answer:

19

Step-by-step explanation:

5 + 4^2 - 6/3

= 5 + 16 - 2

= 21 - 2

= 19

4 0
3 years ago
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