I think this is the answer
Answer:
Step-by-step explanation:
volume of cone = πr²h/3 = (3.14)(11²)(11) ≈ 4,179.34 cm³
Answer:
D. 720 kmph
Step-by-step explanation:
Distance = rate • time.
First, we must find the distance covered when the airplane flies 240 km/hr in 5 hours.
D = 240 • 5
D = 1200 km.
Now the question is asking us, to travel 1200 km in 1 2/3 or 5/3 hours, how fast must we travel at? We can use the same equation, except this time we know the distance and the time, we need to solve for the rate.
1200 = r • 5/3
1200 ÷ (5/3) = r
1200 ÷ 5/3 = 1200 • 3/5 = 0.6 • 1200 = 720.
Therefore, the airplane must travel at a speed of 720 kilometers per hour.
To solve this polynomial equation, we will need to factor the left side.
On the left, we have a a trinomial in a special form that
can be factored as the product of two binomials.
The trinomial on the left can be factored which makes life easier.
This factors as (x + 11)(x - 2) = 0.
This means that either x + 11 = 0 or x - 2 = 0.
Solving each equation from here, we get x = -11 or x = 2.
So the solution is {-11, 2}.
Answer:
Step-by-step explanation:
On the real x-y plane, y = |x| is represented by two separate straight lines:
y = x for x >= 0, and
y = -x for x < 0
