Homework Help: 7th grade math Ms.Sue please

Posted by Delilah on Friday, October 5, 2012 at 7:26pm.

1.
Which of these numbers can be classified as both real and irrational?

5.858585858
63.4
square root 21
square root 36

2.
Which is both a real number and an integer?

23
1 over 4
square root 27
3.402538

3.
Which of these numbers is classified as both real and rational?

square root 17
square root 23
square root 9
square root 2

4.
Which statement is false?

The number zero is a rational number.
Some irrational numbers are also rational numbers.
Every irrational number is a real number.
Every integer is a rational number.

My answers:
1. square root 21
2. 23
3. square root 9
4. Some irrational numbers are also rational numbers.

Are they correct? Thanks.

7th grade math Ms.Sue please - Ms. Sue, Friday, October 5, 2012 at 7:39pm
Sorry, Delilah, but I don't know. When I learned math in the Dark Ages over 60 years ago, we didn't study these concepts.
7th grade math Ms.Sue please - Ms. Sue, Friday, October 5, 2012 at 7:45pm
Even when I occasionally taught a section of 7th grade math over 20 years ago, irrational and real numbers were not part of our curriculum.
7th grade math Ms.Sue please - Delilah, Friday, October 5, 2012 at 7:45pm
That's ok, thanks! Hahaha Dark Ages..... :)
7th grade math Ms.Sue please - Delilah, Friday, October 5, 2012 at 7:47pm
Thanks anyway!
7th grade math Ms.Sue please - Reiny, Friday, October 5, 2012 at 7:47pm
all your answers are correct, good job

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