Finding which number supports the idea that the rational numbers are dense in the real numbers? a fraction between x/2 and x/3
an integer between –11 and –10
a whole number between 1 and 2
a terminating decimal between –3.14 and –3.15

How do you write something in scientific notation?

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?

Which of the following expressions cannot be simplified to x – 2?