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Zinaida [17]
3 years ago
13

What is the value of 9P5 ?

Mathematics
1 answer:
zalisa [80]3 years ago
6 0
\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad \qquad _9P_5=\cfrac{9!}{(9-5)!}

check your calculator for the [!] factorial button.

also bear in mind that most calculators also have an [ₙPᵣ] button, to get Permuations, and you can just use that.
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Jackie has 1/3 of a Hershey bar.steven has 4/12 of a Hershey bar.How much do they have together?
Alisiya [41]
Since Jackie has 1/3 and Steven has 4/12 we add them together


4/12+1/3= 2/3

Together they have 2/3 of a Hershey Bar
8 0
3 years ago
Read 2 more answers
Help me with this I don't get it help4help?
Aleks [24]
1) Divide 3/4 by 1/2. Remember how to divide fractions. Switch the problem into a multiplication problem. 
<span>3/4 x 2/1 = 3/2 (so you could only have 1 and 1/2 servings with 1/2 pound of chicken in each serving. </span>

<span>2) Set up a little algebra problem. Let x = the multiplier of the original 3/4 pounds of chicken needed to make two full servings with 1/2 pound of chicken in each. </span>
<span>(3/4)x = 2(1/2)            (Found this online V(0-0)v)</span>
6 0
3 years ago
HELP WILL NAME BRAINLIEST
bezimeni [28]
First, you must find the width of GHJK. Since the area of it is 84m², divide 84 by 7.
84÷7=12
So the width of GHJK is 12m.
Next, find the scale of GHJK to LMNP. Since the height of both are already available, you can divide 21÷7 to get 3
This means that to get the width of LMNP you must multiply the width of GHJK by 3.
12×3=36.
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21×36=756

So, the area of LMNP is 756m². (Don't forget the units!>
5 0
2 years ago
The point (2, –4) is reflected across the line y = –1. What are the coordinates of the image?
schepotkina [342]

ANSWER

The coordinates of the image are (2,2)

EXPLANATION

The mapping for a reflection across the line y=k is :

(x,y)\to (x,2k-y)

We want to find the image of the point (2,-4) after a reflection in the line y=-1.

In this case k=-1.

(2, - 4)\to (2,2( - 1)- - 4)

This simplifies to,

(2, - 4)\to (2, - 2 + 4)

(2, - 4)\to (2, 2)

Hence the image is (2,2)

4 0
3 years ago
Which situation CANNOT be represented by this equation? −14x+14=8
kumpel [21]
-14x + 14 = 8

 A hot-air balloon has an 8-foot diameter that is changing at a rate of 14 foot per minute. How long in minutes, x, will it take until the balloon has a diameter of 14 feet?

 We observe that when we clear x we have:
 -14x = 14-8
 -14x = 6
 Which means that the balloon will not reach a diameter of 14 feet
8 0
3 years ago
Read 2 more answers
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