((b1+b2)÷2)(h)=A
so I think the answer is 3 1/16 or 3.0625
Place the decimal point right after the first nonzero digit, which is 3.
So you'll go from this
![0.003045](https://tex.z-dn.net/?f=0.003045)
to this
![3.045](https://tex.z-dn.net/?f=3.045)
after this move.
Now ask yourself: "how many spots must I move the decimal point to get back to 0.003045?"
The answer is "3 spots to the left"
The exponent of the final answer is -3
The negative indicates "move left" and the 3 tells us how many places to move the decimal
Therefore,
Answer: Choice C)This is assuming you meant to write the -3 as an exponent
1-distributed property
2.Multiplication
3.addition
4.Divison
5.Sum
Answer:
x = 2, and 6
x = 2 , 6
Step-by-step explanation:
The quadratic function to analyze is: ![y = -x^2+8x-12](https://tex.z-dn.net/?f=y%20%3D%20-x%5E2%2B8x-12)
In order to find where the corresponding parabola intercepts the x axis, we set it equal to zero (y = 0):
![y = -x^2+8x-12\\0 = -x^2+8x-12\\x^2-8x+12=0](https://tex.z-dn.net/?f=y%20%3D%20-x%5E2%2B8x-12%5C%5C0%20%3D%20-x%5E2%2B8x-12%5C%5Cx%5E2-8x%2B12%3D0)
This equation is easy to solve by factoring. We look for a air of integer numbers whose product equals the constant term "12", and whose combinig renders the coefficient of the middle term of the trinomial "-8".
The two such numbers are "-2" and "-6". We use them to split the middle term, and then solve by factoring by grouping:
![x^2-8x+12=0\\x^2-2x-6x+12=0\\(x^2-2x)+(-6x+12)=0\\x(x-2)-6(x-2)=0\\(x-2)(x-6)=0](https://tex.z-dn.net/?f=x%5E2-8x%2B12%3D0%5C%5Cx%5E2-2x-6x%2B12%3D0%5C%5C%28x%5E2-2x%29%2B%28-6x%2B12%29%3D0%5C%5Cx%28x-2%29-6%28x-2%29%3D0%5C%5C%28x-2%29%28x-6%29%3D0)
For the product of two factors to render zero, we need either one to be a zero.This means that (x-2)=0 (that is x = 2), or (x-6)=0 (that is x = 6).
So, there are two x-intercepts: x= 2, and 6