Answer:
2/5
Step-by-step explanation:
did the test
Answer:
a = - 1.1
Step-by-step explanation:
The condition for a single variable function f(x) to be decreasing is f'(x) < 0.
f(x) = 4/x^2 - 6x + 9
Then, differentiating with respect to x on both sides we get,
f(x) = 4(-2)(1/x^3) - 6 < 0
-8/x^3 - 6 < 0
8/x^3 + 6 > 0
{Dividing both sides with - 1 and hence the inequality sign changes}
8/x^3 > -6
8 > - 6x³ {Multiplying both sides with x³}
6x³ > - 8 {Interchanging the sides}
x^3 > -8/6
⇒ x > - 1.1
So, a = - 1.1
Answer:
B. 37,310.4 ft
Step-by-step explanation:
It's a rectangle triangle, and we have the height (3900 ft) and the opposite angle (6 degrees), and we're looking for the hypotenuse (distance traveled) length.
In a rectangle triangle, there's a relation between those elements: the sinus of the angle.
So, if we want to calculate the hypotenuse...
Answer: 380.13
Step-by-step explanation:
area of circle= pi times radius ^2
area= pi *121
area= 380.13
<em>The answer you are looking for is:
</em><em><u>Expand (X-5)(X-4): </u></em>
<u>X^(2)+4x-5x-20 : </u>
<u>Then add like terms to simplify: </u>
<em><u>X^(2)-X-20 </u></em>
<em>Hope that helps!! </em>
<em>Have a wonderful day!!</em>
<em>if you ever need help with anything feel free to ask me!!</em>
