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photoshop1234 [79]
2 years ago
10

In ΔCDE, m∠C = (9x+11)^{\circ}(9x+11) ∘ , m∠D = (3x-15)^{\circ}(3x−15) ∘ , and m∠E = (2x+16)^{\circ}(2x+16) ∘ . What is the valu

e of x?
Mathematics
1 answer:
Ksivusya [100]2 years ago
5 0

Answer:

x = 12

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 given angles and equate to 180, that is

9x + 11 + 3x - 15 + 2x + 16 = 180, simplify left side

14x + 12 = 180 ( subtract 12 from both sides )

14x = 168 ( divide both sides by 14 )

x = 12

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Answer:

A. 13

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3 years ago
Write down the value of angle x.<br> Write the value of angle y.
Andru [333]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Dose anyone know how to do these problems
zimovet [89]

Answer:

1. 14

2. 20

3. 12

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5. 6

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Step-by-step explanation:

1. 16-2=14

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4. -400/-10 (negative divided by a negative equals a positive) = 40

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4 0
3 years ago
What is the area of a rectangle if it is 1/2 of a meter long and 3/8 of a meter wide?
Sonbull [250]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
I next help on the polynomial
slamgirl [31]

Answer:

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Step-by-step explanation:

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this is how my teacher showed us how to do it and i hope this helps you a lot and if it dont im sorry i tried for you!!!

have a nice day Hun

8 0
3 years ago
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