CB is 10.392...
(root 12^2 - 6^2 = 6root3)
CB is now the opposite
CD = hypotenuse
Hypotenuse + opposite = SOH - sin
Sin55 = o/h
sin55 = 6root3/h
x h, then ÷ sin55
H = 6root3/sin55
H = 12.686...
To 3 s.f CD is 12.7cm
(root = square root)
Hope this helps!
(4^2)^8 would be the answer 4^2=16 and 16^8 is the same thing
The answer is B. 2(4) + 3(24) = 80
1(4) + 4(24) = 100
slope = 13
the slope of the tangent is f'( 4)
given f(x) = x² + 5x , then f'(x) = 2x + 5
and f'(4) = ( 2 × 4 ) + 5 = 13
