3 years ago

2x + 6y = 17 2x + 10y = 9

1 answer:

4 0

2x+6y=17
2x+10y=9
-4y=8
divide -4 on each side.
y=-2
2x+10 (-2)=9
2x-20=9
add 20 on each side of the equal sign
2x=29
divide 2 on each side
x=14.5
check:
2(14.5)+10 (-2)=9

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In right triangle ABC with right angle C, sin A = 4/5 and cos A = 3/5. What is sin B + cos B?

g100num [7]

Answer:

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in the given right angled triangle angle A and angle B are complementary to each other

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and Cos A = Sin B

now,

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3 years ago

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Yuri [45]

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