Answer:
284mm²
Step-by-step explanation:
S.A.= 2(lw) + 2(lh)+ 2(wh)
2[12.6(8)] + 2[12.6(2)] + 2[8(2)]
201.6 + 50.4 + 32
S.A.= 284mm²
B
You need a top and bottom (same size)
You need a front and back (same size for them as well)
You need a left and right covering.
Top and bottom = 2 * 12.6 * 8 = 201.6
Left Right = 2 * 8 * 2 = 32.0
Front/Back= 2 * 2 * 12.6 = <u> 50.4</u>
Total 284
B. isosceles triangle
x+y = t
(f+g)(x) = x^3 - 3x + 2
Find (f+g)(x) by adding together f(x) = -3x + 2 and g(x) = x^3:
(f+g)(x) = -3x + 2 + x^3, or, in standard form,
b = -1
-7+b= -8
Add 7 to each side
-7+7+b= -8+7
