lizzy6629
30.01.2020 •
Mathematics
If j = 7 and k = -3, find the value of 2(j + k)^2.
options
16
64
32
36
explain! it's not 64 and i don't know what i did wrong? !
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Ответ:
(J + k) = 7 + (- 3)
(+) with (-) = ( - )
7 - 3 = 4 (its (j + k))
4 ^ 2 = 16
2 x 16 = 32
Ответ:
Sum of internal angles on same side of transversal is 180
(8x-14) +(2x+54) =180
10x +40 =180
10x =140
x=14
option D x=14 is correct