Answer:
20
Step-by-step explanation:

multiply both sides by 35

divide both sides by 35

Answer:
Cos A = (√51)/ 10
Step-by-step explanation:
sin is opposite/hypothenuse
cos is adjacent/hypothenuse
Pythagorus theorem says that c² = a² + b²
10² = 7² + b²
b² = 100 - 49
b = ±√51
It doesn't make sense for a length to be a minus number therefore, we will use +√51.
Cos A = (√51)/ 10
Tell me if I am wrong.
Can I get brainliest
Answer:
C
A
Step-by-step explanation:
the lines intersect at (2,1)
parallel = no solution
Step-by-step explanation:
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