The area of a square is 16 square units. Since 42 = 16 and (-4)2 = 16, both 4 and -4

2 answers:

3 0

It is true that (-4)^2 = 16; however, it doesn't make sense to have a square with a negative side lengths. Lengths and distances must be positive numbers.

So in many problems, we'll just ignore the negative solution to equations like x^2 = 16. It makes sense to only consider x = 4 for situations like this.

Vikentia [17]2 years ago

3 0

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pav-90 [236]

Answer:

Step-by-step explanation:

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8 0

1 year ago

Find an equation of the plane. the plane through the point (−5, 9, 10) and perpendicular to the line x = 1 + t, y = 4t, z = 2 −

PtichkaEL [24]

The direction vector of the line
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Π 1(x-(-5)+4(y-9)-3(z-10)=0
=>
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