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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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If u can answer this that would rlly help:)
nadezda [96]

Answer:

x = 12

Step-by-step explanation:

First, we need to find the last interior angle of the triangle. Since we know the exterior angle next to it is 140° and they are supplementary, meaning they form a 180° angle, we can make an equation to solve for the last angle.

∠SRT + 140° = 180°

∠SRT = 40°

Now we know that the last interior angle is 40°. All triangles have a sum of 180°, therefore we can once again set up an equation to solve for x.

3x + 4 + 8x + 4 + 40 = 180

11x + 48 = 180

11x = 132

x = 12

Therefore, x = 12.

7 0
2 years ago
The measures of the angles in a triangle are x, 2x, and 3x. The triangle is
nordsb [41]

Step-by-step explanation:

x + 2x + 3x = 180°

6x = 180°

Therefore, x = 30°

2 x = 60°

3x = 90°

Hence, it is a right angled triangle.

8 0
3 years ago
Read 2 more answers
Multiply = x(.67)<br><br> Multiply=x-.33x
sweet [91]

Answer: 0.67x

Answer: -0.33x^2

Step-by-step explanation:

7 0
2 years ago
Tori spends equal amounts of time on homework from each of her subjects. She spends 1 hour altogether on her homework each night
Montano1993 [528]

Answer:

4

Step-by-step explanation:

Quarter hour on chemistry

Quarter hour on class 2

Quarter hour on class 3

Quarter hour on class 4

Total time....One hour

7 0
2 years ago
PLEASE HURRY
givi [52]
Point A is the midpoint of CT which means the ratio of CA:CT would be 1:2.
To find CT, you need to find the distance of CA then applies 2 times of the distance to the point C

Xca= Xa-Xc= 1- (-2)= 3
Yca= Ya- Yc= -3 -5= -8

Xt= Xc + 2* Xca= -2 + 2*3= 4
Yt= Yc + 2* Yca= 5 + 2*-8= -11
T(Xt, Yt)= T(4, -11)

The coordinate for point T would be (4, -11)
8 0
3 years ago
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