Hello there.
What is the height of the second rectangle?
12.

D) 54
Step-by-step explanation:
input f(4) into x
f(x) = x² + 8x + 6
f(4) = (4)² + 8(4) + 6
f(4) = 16 + 32 + 6
f(4) = 54
Answer:
x=1
Step-by-step explanation:
Quadratic trinomial is the answer because the exponent is 2
Answer:
Heyya little student!
Sin means 
5 is the hypotenuse (its opposite to 90 degrees )
So, sin β would be:-
the side opposite to the angle β divided by the hypotenuse of the triangle.
The side opposite to β is 4
and as I said earlier, the hypotenuse is 5
<h2>So, sin β would be:-</h2><h2>

</h2>
I hope it helped you!
Keep learning
and never stop smiling
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