Question

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Answer 1

Step-by-step explanation:

Answer 19.

A)( 5,4,8)

Because the sum of two side should be more than the third side.

Answer 20.

Let the first number be x and the second be x+1

x+x+1 = 166

2x = 165

x = $\frac{165}{2}$

x +1 = $\frac{165}{2} +1 = \frac{165+2}{2}= \frac{167}{2}$

Answer 2

Step-by-step explanation:

black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole