Answer:
15
Step-by-step explanation:
Plug in 3 as x:
3x + 6
3(3) + 6
9 + 6
= 15
So, the simplified expression if x = 3 is 15
Answer:
y = -1/3
Step-by-step explanation:
As x gets large, the value of the expression approaches the ratio of the highest-degree terms in numerator and denominator:
y = -3x^6/(9x^6) = -3/9
y = -1/3
The cable should be 50 feet.
If you draw the picture, you will see that you have a right triangle.
Let's just use the Pythagorean Theorem to find the hypotenuse (or cable).
30^2 + 40^2 = c^2
2500 = c^2
50 = c
