Mathematics
Peckinpaugh806
2015-11-10 10:41:27
Find the measure of two complementary angles, a and b, if m a = 7x + 4 and m b =4x + 9
ANSWERS
PearlDemianczyk
2015-11-10 12:49:32

complentary angles add to 90 degrees a and b are complentary a+b=90 a=7x+4 b=4x+9 so 7x+4+4x+9=90 combine like terms 11x+13=90 minus 13 both sides 11x=77 divide both sides by 11 x=7 m a =7x+4=7(7)+4=49+4=53 m b=4x+9=4(7)+9=28+9=37 angle a measures 53 degrees angle b measures 37 degrees

ChristineRorabaug411
2015-11-10 12:50:47

A would be 53 and b would be 37. 37 +53 =90 complementary angle =90°

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