<span>The value of cot is √13/6</span>
1. all functions are relations.
2.
-7 + 3(-12) ÷ (-3)
-7 - 36 ÷ -3
-7 - (-12)
-7 + 12
5
3.
f(n) = n² - n f(-4)
f(-4) = -4² - (-4)
f(-4) = 16 - (-4)
f(-4) = 16 + 4
f(-4) = 20
hope this helped, God bless!
Do the inverse operation:
P(x)+(3x-7)=0
P(x)=-3x+7
Answer:

Step-by-step explanation:
According to universal law of gravitation every object in the universe attracts every other particles that surrounds it with a force which is inversely proportional to the square of their distance of separation & directly proportional to
the product of their masses, given by standard formula.

where A,d & G are force of attraction, distance of separation & proportionality constant respectively.
<em>Given:</em>
A1 = 2 units
d1= 5 cm
A2 = 8 units
<em>To find:</em>
Distance of separation when the force of attraction is 8 units d2 = ?
<em>Solution:</em>
Substituting the given values in above at each point,

<em>Answer:</em><em> </em><em>the distance between the two </em><em>objects </em><em>is </em><em>2</em><em>.</em><em>5</em><em> </em><em>cm</em><em>, if the attraction between them is 8 </em><em>units.</em>
<em><u>Learn more about universal law of gravitation here brainly.com/question/27244479</u></em>
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