Answer:
Step-by-step explanation:
Replace x in the first equation.
Now replace y in any of the equations to find x.
Answer:
1=8
2=25
3=isosceles
4=no traingle can be formed
The standard form of a quadratic equation is :
ax² + bx + c = 0
And the quadratic formula is:
x=\frac{-b\pm\sqrt{b^2-4ac}}{2a} .
So, first step is to compare the given equation with the above equation to get the value of a, b and c.
So, a = -1, b = 2 and c = 1.
Next step is to plug in these values in the above formula. Therefore,
So, x =
Answer:
A
Step-by-step explanation:
The type I error arises when we wrongfully reject the null hypothesis. The probability of occurrence of type I error is denoted as α. Thus, α=0.05 means that there is 5% probability that we reject the null hypothesis when it is true. So, we can say that the α=0.05, means that 5% of the time, we reject the null hypothesis when it is correct.
The easiest way to work out the area is to count the squares and change that into feet..(eg 4 squares = 4 feet ) sorry but i can't work out the whole thing as part of it is not on the photo... Anyway, it shouldn't be too much work, so good luck and i hope i helped..
