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Mariana [72]
4 years ago
5

Which transformations can be used to map a triangle with vertices A (2, 2), B (4, 1), C (4, 5) to A’ (–2, –2), B’ (–1, –4), C’ (

–5, –4)?
a
a 90 degree clockwise rotation about the origin and a reflection over the y-axis

b
a 90 degree counterclockwise rotation about the origin and a translation down 4 units

c
a 180 degree rotation about the origin

d
a reflection over the y-axis and then a 90 degree clockwise rotation about the origin
Mathematics
1 answer:
Aliun [14]4 years ago
6 0
A is the the answer for you
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The vertices of a triangle are located at X(-2,-1), Y(2,5) and Z(4,3). What is the perimeter of this triangle?
Lana71 [14]
If you plot the points you will find you have to use the distance formula. Pick out 2 pairs label them (x1,y1) (x2,y2) then plug it into the distance formula. The repeat for the other sides. So you should get (2,5) (4,3) plug into distance formula what is get it distance between those two points, then (4,3) (-2,-1) plug into distance formula to get an answer, lastly (-2,-1) (2,5) plug in. Now you have three answers add all together and here is your perimeter of a triangle.
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3 years ago
4x - 5y = -28<br>-3x - 2y = 10​
kozerog [31]

Answer:

y=-4/23

im not sure i didn't check (might be wrong)

Step-by-step explanation:

4x - 5y = -28

-3x - 2y = 10​

then make x the same

So

12x-15y=-84

-12x-8y=80

then its left with

-23y=-4

y=-4/23

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3 years ago
If you had 1080 and the ratio is 3:4:5 how much would each person have
jolli1 [7]
270:360:450 is the ratio 
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3 years ago
Twelve athletes are running a race. A gold medal is to be given to the winner, a silver medal is to be given to the second-place
kykrilka [37]

Answer:

1320

Step-by-step explanation:

We are given that

Total number of athelets are running in race=12

Total number of medals =3

We have to find the total possible number of ways can the 3 medals be distributed.

Total number of ways for choosen gold medal=12

Number of ways for choosen silver medal=11

Number of ways for choosen Bronze medal=10

Total number of possible ways=12\times 11\times 10=1320

Hence, total number of possible ways in which  3 medals be distributed=1320

8 0
4 years ago
What is the product of (n -8)(n + 2)?
xenn [34]

Answer:

n2-6n-16

Step-by-step explanation:

n(n+2)-8(n+2)

n2+2n-8n-16=

n2-6n-16

6 0
4 years ago
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