Reverse Telephone Numbers
Math homework, can you help me?
Please help! 1) What is the smallest positive integer that has exactly five factors? 2) A rectangle has an area of 600cm2. Its sides are in centimeters and are multiples of 5. How many different rectangles with the property there? 3) The phone numbers in a small town has 2 digits. These range from 00 to 99. Of the 100 possible numbers, which are smaller when investing not in use. Ie 21 is not used. Find the maximum number of phone numbers in use in the city.
1) 16
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Numbers (Hardcover)
$19.73
Numbers, Accord’s new caterpillar-shaped board book opens accordion-style to a whopping 3 feet long. Segments feature a colorful digit on one side with fun things to count on the reverse. And, it all folds up into a secure little package.
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