Answer:
you miss the put the initial quote
Step-by-step explanation:
OK. Here we go:
What is the square root of 9 ?
You would say that 3 is, and you're correct.
But that's NOT the <em>only one</em> there is !
What about -3 ?
What do you get when you multiply (-3) times (-3) ?
(Remember that when the signs of both numbers are <em>the same</em>,
the answer is positive.)
(-3) times (-3) = 9
So -3 is <em>also</em> the square root of 9 .
That's right . . . every number has <em>two</em> square roots. They're both the
same number, but one is positive, and one is negative. When you
multiply <em>either one</em> of them by itself, you get the original number.
Another way to say the same thing is:
Every number has one positive square root and one negative square root,
and except for the signs, they're both the same number.
Answer:
b
Step-by-step explanation:
Answer:
KITE, TRAPEZIUM and A Concave quadrilateral
Step-by-step explanation:
PARALLELOGRAM: A quadrilateral in which opposites sides are PARALLEL and EQUAL.
So, Any quadrilateral which does NOT have its opposite sides being parallel or equal is not a parallelogram.
So, such quadrilaterals are:
1. KITE : A kite is not a parallelogram as it has no parallel lines at all.
2. TRAPEZIUM : A trapezium has ONLY ONE pair of opposite sides parallel.
3. A Concave quadrilateral does not have parallel sides.
