Mathematics: Please help this is the last question

Please help this is the last question - id13593647, Happypuppy1918

diamondgdm

02.07.2021

the measure of angle A: 18.6°

measure of angle B: 55.8°

measure of angle C: 105.6°

Step-by-step explanation:

6x - 6 + 3x + x = 180

10x - 6 = 180

10x (- 6 + 6) = 180 + 6

10x = 186

10x/10 = 186/10

x = 18.6

18.6 + 3(18.6) + [6(18.6) - 6] = 180

18.6 + 55.8 + 105.6 = 180

180 = 180

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chandlergward8

02.07.2021

Angle A: 18.6°

Angle B: 55.8°

Angle C: 105.6°

x = 18.6

Step-by-step explanation:

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itsssleaaa

18.08.2020

$8e^{4x+8}= 15\\
e^{4x+8}=\dfrac{15}{8}\\
4x+8=\ln \dfrac{15}{8}\\
4x=\ln \dfrac{15}{8}-8\\
x=\dfrac{1}{4}\ln \dfrac{15}{8}-2$

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