Evaluate these questions 3a+2a= c+d there is a line under this one ad
2 answers:
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Answer:
<h2>x = - 1</h2>Step-by-step explanation:
Expand the terms in the bracket
That's
<u>Subtract 5x from both sides</u>
<u>Add 5 to both sides</u>
<u>Divide both sides by - 3</u>
We have the final answer as
<h3>x = - 1</h3>Hope this helps you
Answer:
r = -12cos(θ)
Step-by-step explanation:
The usual translation can be used:
- x = r·cos(θ)
- y = r·sin(θ)
Putting these relationships into the formula, we have ...
(r·cos(θ) +6)² +(r·sin(θ))² = 36
r²·cos(θ)² +12r·cos(θ) +36 +r²·sin(θ)² = 36
r² +12r·cos(θ) = 0 . . . . subtract 36, use the trig identity cos²+sin²=1
r(r +12cos(θ)) = 0
This has two solutions for r:
r = 0 . . . . . . . . a point at the origin
r = -12cos(θ) . . . the circle of interest
