Answer:
117
Step-by-step explanation:
270 -153=117
Lets say we have a quadratic equation:
3x^2 + x + 0 = 0
Now, since if we add or subtract 0 from something, the original value stays the same, which means we can write the equation as 3x^2 + x = 0 and ignore the “+0”.
In these kinds of equations, you /can/ use the quadratic formula, but theres a much quicker way. If we factor 3x^2 + x, we get x(3x + 1) = 0. Here, x has two possible values — since the result of the multiplication is 0, that means that either one expression or the other must equal 0. In essence:
If x(3x+1) = 0 then x = 0 or 3x+1 = 0
One of the solutions is that x = 0. Lets find the other.
3x+1=0
3x= -1
x = -1/3
So x1 = 0 and x2 = -1/3. So basically you solve these equations using basic factorization. :)
39 students have a pet because 130 times .30 which represents thirty percent gives you the answer
Answer:
V = 1980cm^2
Step-by-step explanation:
Volume of rectangle = LxWxH
V = 34 x 6 x 6
V = 1224cm^2
Volume of triangle = (BxHxL)/2
B = 34 - 16 = 18cm
H = 20 - 6 = 14cm
L = 6
V = (18x14x6)/2
V = (18x14x6)/2
V=1512/2 = 756cm^2
1224 + 756 = 1980cm^2