Answer:
x = 20
Step-by-step explanation:
x° + 2x° + (x+10)° = 90°
3x° + x° + 10° = 90°
4x° + 10° = 90°
4x° = 90°-10°
4x° = 80°
x = 80/4
x = 20
Answer:
The last option
Step-by-step explanation:
she did not change the sign of +6 to -6
the constant term should be -15 and not -3
Example of Roots of Complex Number
(64)1/6={2cis(60k)∘} for k=0,1,2,3,4,5.
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➷ There is a rule : angles in a triangle will always total to 180 degrees.
180 - 90 = 90
As you can see via the calculation above, the other two angles would have to total to 90 degrees to fit this rule.
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➶ Hope This Helps You!
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