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Q: On a number line 8.9 is between 7 and 8.?

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14

-7

The absolute value of that number, like -7-0= |-7| or just 7.

The number would be 7.9 on a number line. What you can do to find this number is go to the spot on the number line that says 7 and 8. Cut the number line between 7 and 8 into 10 pieces. Then count to the ninth peice and this is 7.9

9

To visualise √7 on a number line you'd have to approximate it - √7 is in exact (surd) form as it is not a whole number. The approximation or decimal form of √7 is roughly 2.65. Or if you prefer, 2.6457513110645905905016157536393. So on a number line, place it between 2 and 3.

26 units

-4

3 units

The easiest way to find the distance between any two numbers on a number line is the bigger number minus the smaller. Here 23 - (-7) = 23+7 = 30. Remember that minus a negative number is the same as plus that number.

It is 5 because 5+7 = 12 and 5-7 = -2

-4

17

The number in bold: 7.789

89 is the prime number, because 91 can be divided by 13 and 7, as well as itself and 1.

89 x 7 = 623 The smallest number over 600 divisible by 89 is therefore 623.

6 1/2

The fraction number line (its more sophisticated name is "Rational Number Line") looks like an ordinary straight line, but each submicroscopic point on the line represents a number which can be represented as a fraction of two integers. The number "zero" stands at the center of the line, and there are an infinite number of points in the line. No matter how close together two fractions are, there are an infinite number of fractions between them. A number line is a strictly theoretical concept. It really isn't possible to draw more than an extremely limited example of a number line, since there is no limit to the number of points on a number line. Here's a very primitive fraction number line, showing only halves: -7/2 ... -3 ... -5/2 ... -2 ... -3/2 ... -1 ... -1/2 ... 0 ... 1/2 ... 1 ... 3/2 ... 2 ... 5/2 ... 3 ... 7/2 And an only slightly more intricate line showing only sevenths: -6/7 ... -5/7 ... -4/7 ... -3/7 ... -2/7 ... -1/7 ... 0 ... 1/7 ... 2/7 ... 3/7 ... 4/7 ... 5/7 ... 6/7

7, 14, 89

-7

32

Any reason why it wouldn't be 0.615?

No, between 8 and 9, very close to eight.

Just 84.

The factors of 119 are 1, 7, 17, 119. The factors of the prime number 89 are 1, 89. The only factor 119 and 89 have in common is 1.