Answer:CR= 53
AB = 118
CAB = 236
Step-by-step explanation: a whole is circle is equal to 360 degrees and when you see the two parts which dint have an angle, they look the same size. So I pluses 53 and 71 than subtracted from 360. Which then I divided it by two then you get the angle for A to B.
Hope this helped and hope this is the correct answer.
Answer:
2.5 km/s
Step-by-step explanation:
<h3>GỌI CẠNH</h3><h3>ngắn: x, x>0</h3><h3>DÀI: X+ 30</h3><h3>ĐƯỜNG CHÉO
</h3><h3>
=X+60</h3><h3>
=
</h3><h3>
</h3><h3>
</h3><h3>
</h3><h3>
</h3><h3>
</h3><h3>suy ra</h3><h3>x =9 0</h3><h3>nên</h3><h3>ngắn =90m</h3><h3>dài=120m</h3><h3>ĐƯỜNG CHÉO:
=150</h3><h3 />
Answer:
(f•g)(x) = 5x^3 + 15x^2 + 15x + 5
Step-by-step explanation:
If f(x) = 5x^3 and g(x)= x+1 find (f•g)(x)
(f•g)(x) = (f(g(x))
So
(f(g(x)) = 5(x+1)^3
= 5(x+1)(x+1)^2
= (5x + 5)(x^2 + 2x + 1)
= 5x^3 + 10x^2 + 5x + 5x^2 + 10x + 5
= 5x^3 + 15x^2 + 15x + 5
So
(f•g)(x) = 5x^3 + 15x^2 + 15x + 5