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VMariaS [17]
3 years ago
9

Evaluate 9 P 5. 15,120 45 362,880

Mathematics
2 answers:
Andreas93 [3]3 years ago
8 0
The answer------>  <span>9*8*7*6*5 = 15120 </span>
Sergio [31]3 years ago
8 0

Answer: 15,120

Step-by-step explanation:

The number of permutations of n objects taken r at one time ^nP_r is calculated by the following formula:

^nP_r=\frac{n!}{(n-r)!}

Now, the given  expression is ^9P_5

by using the above formula , we get

^9P_5=\frac{9!}{(9-5)!}\\\\=\frac{9!}{4!}\\\\=\frac{9\times8\times7\times6\times5\times4!}{4!}\\\\=9\times8\times7\times6\times5=15120

Hence, ^9P_5=15,120

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The percent decrease of an item that dropped in price from $50 to $43 is​
frez [133]

Answer:

14%

Step-by-step explanation:

The item dropped from $50 to $43 .

Therefore,

Decrease = $50 - $43

= $7

To get the % decrease, divide the decrease by the initial price and multiply the result by 100%

That’s

$7/$50 x 100%

$0.14 x 100%

= 14%

The price of the item decreased by 14%

5 0
3 years ago
Read 2 more answers
In the diagram below, O is circumscribed about quadrilateral DEFG. What is
Nimfa-mama [501]

Since O is circumscribed about quadrilateral DEFG, the value of x is equal to: D. 68°.

<h3>What is a supplementary angle?</h3>

A supplementary angle can be defined as two (2) angles or arc whose sum is always equal to 180 degrees. Mathematically, a supplementary angle can be calculated as follows:

Q + R = 180°.

In Geometry, the opposite angles of any cyclic quadrilateral that is inscribed inside a circle always form a supplementary angle. Thus, we would determine the value of x by using the mathematical expression above:

x + 112° = 180°

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x = 68°

Read more on supplementary angle here: brainly.com/question/12542846

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8 0
1 year ago
Please help me! Thank you
Yuki888 [10]

Answer:

Anne

Step-by-step explanation:

The expression cannot be simplified anymore, but it can be laid out correctly.

The greatest number for the exponents should come first, so Anne is the one who laid it out correctly.

Hope it helps!!

Let me know if I'm wrong...

3 0
2 years ago
Part B The mass of an average grain of rock salt is about 40 times the mass of an average grain of table salt. If you multiply t
yawa3891 [41]

Answer:

0.012

Step-by-step explanation:

We know the standard notation of table salt is 0.003, so we simply multiply 40 by this.

answer - 0.0003 X 40 = 0.012

3 0
1 year ago
One side of a rectangle is 6 meters shorter than four times another side. Find the length of the longer side if we also know tha
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Set the shorter side of rectangle as X m
The longer side = (4X-6) m
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58=10X -12
70 = 10X
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The shorter side is 7 m
And the longer side is 4 x 7 -6 = 22 m
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2 years ago
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