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Andreas93 [3]
2 years ago
7

Patterinsin the multiplication table

Mathematics
1 answer:
victus00 [196]2 years ago
3 0
1. The numbers in the section to the right of the diagonal (white squares) are the same as in the section to the left of the diagonal. Or, in other words, the numbers in the darker shaded section are repeated in the lighter shaded section.

2. The 10 × table is just the 10s in order (10, 20, 30, 40 and so on).

3. The 5 × table has numbers ending in 5 and 0 alternately, while the first digit increases every 2 numbers.

4. The 9 × table has the units decreasing by 1 and the 10s increasing by 1 each time (up to 10 × 9).

5. The numbers in the 3 × table have the sum of their digits coming to 3, then 6, then 9. This pattern repeats throughout the table: e.g. 12: 1 + 2 = 3; 15: 1 + 5 = 6, 18: 1 + 8 = 9.

Hope my answer helped u :)

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A special type of password consists of 3 different letters of the alphabet, and the two different numbers, where each letter and
Phoenix [80]

Answer:

There can be 14,040,000 different passwords

Step-by-step explanation:

Number of permutations to order 3 letters and 2 numbers (total 5)

(AAANN, AANNA,AANAN,...)

= 5! / (3! 2!)

= 120 / (6*2)

= 10

For each permutation, the three distinct (English) letters can be arranged in

26!/(26-3)! = 26!/23! = 26*25*24 = 15600 ways

For each permutation, the two distinct digits can be arranged in

10!/(10-2)! = 10!/8! = 10*9 = 90 ways.

So the total number of distinct passwords is the product of all three permutations,

N = 10 * 15600 * 90 = 14,040,000

7 0
3 years ago
Use the drawing tools to form the correct answer on the grid.
Rus_ich [418]

Answer:

Here is the answer I got when I graphed the equation I got it correct so here it is: Hope this Helps!!!

Step-by-step explanation:

Draw a line exactly from 120 to the top of number 9 on the x axis labeled # of Books

PLEASE GIVE BRAINLIEST IF THIS HELPED!!!

THANKS!!!

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3 years ago
The length of a rectangle is 6 1/2 inches and the width is 3 3/4 inches. What is the ratio, using whole numbers, of the length t
LUCKY_DIMON [66]

Answer:The length is 13/2, while the width is 15/4, after combination. Ratio of length to width is then (13/2)/(15/4) = 26/15.

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Answer:

A

Step-by-step explanation:

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Answer:

83100

Step-by-step explanation:

46,170 + .8(46170)

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