8. What is the surface area of the given figure?
28 cm
NA
36
10 cm
26 cm
Not drawn to scale
ki
02.564 cm2
O2,276 cm2
0 2,184 cm?
O 1.160 cm

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

it would open into a square depending on the type of envelope i’m not sure about the second part

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2