The answer is 20
(2x20+9= 49
Given that a particular country has an estimated 4760 nuclear weapons out of an estimated total of 15350 nuclear weapons worldwide.
To find the percentage of the nuclear weapon owned by the country we have:
Therefore the country has 31.01% of the total nuclear weapons.
ANSWER:
31.01%
The answer is 80 because you divide 32 by 2/5
To find mean, add all of your given numbers, then divide by how many numbers you have in your data set.
87+93+86+90+84=440
440/5 (There are five numbers in your data set) is 88.
:)
Let the equation be:
y = ax^2 + bx + c.
Then, substitue the three points into the equation.
First point: 0 = a0^2 + b0 + c.
So c = 0.
Second point: -2 = a(-1)^2 + b(-1) + c.
So a - b + c = -2.
Third point: 6 = a*1^2 + b*1 + c.
So a + b + c = 6.
We know that c=0 already, so we substitute c=0 into the last two equations and we would get:
a - b = -2
a + b = 6
We add the two equations and we get:
2a = 4
a = 2
Then, we substitute a=2 into a-b=-2 and we get:
-b = -4
b = 4
Now we know a = 2, b = 4, and c = 0
Then, the equation of the parabola would be:
2x^2 + 4x