Answer:
-26
Step-by-step explanation:
- Insert the f(-1) into the equation.
- It'll be f(-1) = 6(-1) + 13(-1) + 2(-1) - 5
- After you times all of it. You'll get 7-13-2-5
- Solve it and you'll get -26
9514 1404 393
Answer:
10,466.7 in^3
Step-by-step explanation:
The volume of a cone is given by ...
V = (1/3)πr^2·h
where r is the radius and h is the height. Using your numbers, we have ...
V = (1/3)(3.14)(20 in)^2·(25 in) = 10,466.7 in^3
_____
A more accurate value of π will give a different result.
$1495 ÷ 1.15 (that's 115%)
= $1300
there's your wholesale price.
we can check it to make sure it's correct:
$1300 × 1.15 = $1495
We want to make x^2-3x into a perfect square trinomial. An example of such a trinomial is x^2 + 6x + 9, which is equivalent to the square of (x+3).
From x^2-3x we see that the coefficient of x is -3. Divide this coefficient, -3, by 2, obtaining -3/2. Now square this result: square -3/2. Result: 9/4.
Adding 9/4 to x^2-3x makes x^2-3x into a perfect square trinomial.
it will take to fill a 10 liter container= 33.3 hours