Answer:
15 x 2 + 15 x r
Step-by-step explanation:
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x=45
2x+45+x=180
Combine 2x and x to get 3x.
3x+45=180
Subtract 45 from both sides.
3x=180−45
Subtract 45 from 180 to get 135.
3x=135
Divide both sides by 3.
x=135/3
Divide 135 by 3
it needs to be less dense than water and weight needs to be equal to buoyant force.
c.
2x² - 4x - 3 = 0
