There are 39 left handed students at Toms school
20(7.5*10^-2)
the *10^-2 means we move the decimal of 7.5 2 places to the left
20(.075)
=1.5
Well, a rhombus IS a parallelogram, so it definitely has
all the properties of a parallelogram.
A rhombus has some of the properties of a rectangle and
square, but not all of them:
-- Rectangles and squares must have right angles.
A rhombus can have them, but it's not necessary.
-- A rectangle need not have all sides equal,
but a rhombus must.
You may want to elaborate on what you mean by "square root problems"
Answer:
- 8, 15, 17 — yes
- 15, 20, 25 — yes
- 20, 48, 52 — yes
- 2, 9, 11 — no
- 39, 80, 89 — yes
Step-by-step explanation:
The squares of the three numbers in each of the given triples are listed. When the sum of the first two numbers is equal to the third, the set of numbers in the triple is a Pythagorean triple.
{64, 225, 289}, yes
{225, 400, 625}, yes — a 3,4,5 triple multiplied by 5
{400, 2304, 2704}, yes — a 5,12,13 triple multiplied by 4
{4, 81, 121}, no*
{1521, 6400, 7921}, yes.
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* the smallest set of integers that is a Pythagorean triple is {3, 4, 5}. The number 2 in this group tells you this cannot be a PT.
