If x = 10 find the value of 2x2 + 21

221

Step-by-step explanation:

If x = 10,

2x² + 21 = 2(10)² + 21

             = 200 + 21

             = 221

Hope it helps :)

Please mark my answer as the brainliest

61 or 2123

Step-by-step explanation:

10x2=20

10x2=20

20+20=40

21+40=61

2101+21=2123

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

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