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Anastaziya [24]
3 years ago
6

There are 13 books on a shelf. 5 of these books are new.

Mathematics
2 answers:
Sergio039 [100]3 years ago
7 0
If there are 13 total books then you have a ratio of 5:13 new books.
 And if the books are used the ratio is 8:13
bazaltina [42]3 years ago
5 0
A is 8:13 and B is 8:5
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ABCD is a parallelogram.
Dmitry_Shevchenko [17]

Answer:

Using SAS they are congruent.

Step-by-step explanation:

E is the point where the diagonals AC and BD meet.

Side: AB = CD

Angle: ∠ABE = ∠EDC

Side: BE = DE

Hence by SAS theorem the two triangles are congruent.

7 0
3 years ago
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The square root is a number, decreased by 2, is 4.
olasank [31]

Answer: 36

Step-by-step explanation:

4 0
3 years ago
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Here is a list of numbers: 13, 15, -6, 8, -16, 2, -12 ,3 ,-18 ,-18 state the median.
DiKsa [7]

The median of list of numbers is-2.

Given the list of numbers is 13,15,6,8,-16,2,-12,3,-18,-18.

The median is the median of a sorted list of numbers. To find the median of a sequence of numbers, the numbers must be sorted in order from lowest to highest or highest to lowest.

Firstly, we will arrange the number from ascending to descending, we get

-18,-18,-16,-12,-6,2,3,8,13,15.

Now, we will find the middle term of the sequence, we get

The middle terms are -6 and 2.

Further, we will find the median of it.

n=(-6+2)/2

n=-4/2

n=-2

Hence, the median of the list of numbers 13, 15, -6, 8, -16, 2, -12 ,3 ,-18 ,-18 is -2.

Learn more about median from here brainly.com/question/15796951

#SPJ4

7 0
2 years ago
What is the slope of the line represented by the equation y = x – 3?
leonid [27]
I THINK ITS C GOODLUCK
7 0
2 years ago
Help meeee it's math ::Simplify an expression for the perimeter of the rectangle shown
bagirrra123 [75]
8.6x + 3 + 8.6+3 =. 17.2x + 6


5.2+5.2= 10.4

17.2x + 6 = 10.4
5 0
3 years ago
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