Drag each expression to show whether it is equivalent to −1.3−(−8.9) -1.3 x - -8.9 x , −1.3+(−8.9) -1.3 x + -8.9 x , or neither.
2 answers:
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Answer:
20 books
Step-by-step explanation:
Height of stack = 35 inches
Thickness of one book
No. of books
Answer:
see below
a = 0.66...
b = 0.73
c = 7/8
Step-by-step explanation:
The first two numbers, 0.73 and 0.667, are near the point that is halfway between 0.6 and 0.8. That halfway point is 0.7. The value 0.667 will be below (left) of the halfway point, so is point <em>a</em>. The value 0.73 will be above (right) of the halfway point, so is point <em>b</em>. The remaining value, 7/8, must be point <em>c</em>.
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You may know that 7/8 = 0.875, so is nearly halfway between 0.8 and 1.
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The attached graph has the points color-coded.
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Of course you know that the overline in indicates that digit repeats indefinitely. The value 0.667 is the number rounded to 3 decimal places.
