X^2 - 2x - 8
2 numbers that multiplied give -8
2 numbers that added give -2
2 x -4 = -8
2 + -4 = -2
(x + 2) (x -4 )
roots equal = -2, 4
x^2 - 2x -8
a. b. c because b is -2 in the equation you don't plug b as a negative
in the axis of symmetry
axis of symmetry = -b divide by 2a
2 divide by 2(1) =1
Vertex= (1, -9)
W= 31.4
Step 1: 4*Pi = 12.566370614359
Step 2: -6*Pi = -18.849555921539
Step 3: Rewrite equation (12.566370614359=w-18.849555921539)
Step 4: Move the number that is equivalent to 6Pi over to the other side of the equal sign to get the variable alone. (12.566370614359+18.849555921539 = 31.415926535898 ) The problem should now look like this, <span>31.415926535898=w
Step 5: Divide the numbers (which you don't really need to do here since the "number" in front of w is 1. This is helpful to know for future problems though.)
Step 6: Round to the nearest tenths place (or however you need to) giving you the final answer of 31.4 </span>
Draw a x on the square to make 4 triangles. triangles have a total of 12 sides.
Answer:
x=4
Step-by-step explanation:
We can modify the Pythagorean Theorem to fit our needs and solve x. We know our c and our a so to find x or b we use c^2-a^2=b^2. Lets input our knowns. 5^2-3^2=x^2. Lets start solving by squaring.
25-9=x^2
Subtract
16=x^2
Take the square root
4=x