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devila321
04.02.2020 •
Mathematics
If ec bisects are congruent to bed find m bed
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Ответ:
m<BED = 136 deg
Step-by-step explanation:
Since ray EC bisects <BED, angles BEC and CED are congruent. That means their measures are equal. Set the measures equal to each other, and solve for x.
11x + 2 = 8x + 20
Subtract 8x from both sides.
3x + 2 = 20
Subtract 2 from both sides.
3x = 18
Divide both sides by 3.
x = 6
Now we use the value of x to find the measure of angle BED.
The measure of angle BED is twice the measure of angle BEC. We know that x = 6.
m<BED = 2m<BEC = 2(11x + 2) = 2(11 * 6 + 2) = 2(66 + 2) = 2(68) = 136
Ответ:
(8 • (j - 4)) - 8 • (j - 4) = 0
8 • j-4 • ( 1 * 1 +( (-1) * (-1) ))
16 • (j - 4) = 0
16= 0
J-4=0
J= 4
I hope that’s right!