Find the sum and choose the correct answer. 2n3 + 4n2 - 7 and -n3 + 8n - 9

A. - n3 - 4 n2 - 8 n - 16
B. n3 + 4 n2 + 8 n + 16
C. 3 n3 + 4 n2 + 8 n - 2
D. n3 + 4 n2 + 8 n - 16

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.  

pla·gia·rism

/ˈplājəˌrizəm/

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noun

the practice of taking someone else's work or ideas and passing them off as one's own.

step-by-step explanation:

after 1 year: 221 deer

step-by-step explanation:

30% of 170 is 51. 170+51=221