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vagabundo [1.1K]
3 years ago
15

20 points + brainliest, give explanation

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
8 0

Answer:

The answer is 72 degrees Z is also 180 by the way

Step-by-step explanation:

A straight line is 180 so subtract 108 and you will get the angle 72 degrees

Nataly [62]3 years ago
8 0

Answer:

Step-by-step explanation:

Since Angle BCD is parallel to EDC, it means they both equal 108 degree. So x = 108

the supplementary angle for 108 is 72 degree, which means Angle c = Angle y, so angle y = 72 degrees.

all angles in a triangle = 360, so use the formula to find out what angle z is

360 = 72 + 72 + z

360 = 144 + z

360 - 144 = z

216 = z

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Airida [17]

Answer:   O Yes; 6

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Step-by-step explanation:

If the numbers keep changing by the same value being added or subtracted, it is Arithmetic.

-15 - (-9) = -6    -9 - (-3) = -6    -3 - 3 = -6

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4 0
3 years ago
If x = –3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the e
natita [175]

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The discriminant d=b^2-4ac here is

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7 0
3 years ago
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Wewaii [24]
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Step-by-step explanation:

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