First we'll show this is a right triangle by the Pythagorean Theorem:
Since 
we have a right triangle, by the (converse to the) Pythagorean Theorem. We also see it's isosceles, AB=AC.
That's the end of the homework but I'll go on a bit.
Another way to show perpendicularity, essentially the same as the other two, is by a zero as the dot product of the sides as vectors, differences between vertices.
Vector AB = B - A = (3,2)
Vector AC = C - A = (-2, 3)
AB · AC = 3(-2) + 2(3) = 0
A zero dot product means
AB ⊥ AC
Set up a proportion. X is the number you're looking for:
This relates 3 to x as 4 percent relates to 100. Simplify the 4 and the 100 to 1 and 25, cross multiply, and solve for x:
3 is 4% of 75.
Answer:
C. x = 8
Step-by-step explanation:
We know that x · x · x is equal to 512. We know it cannot be negative because then the 512 would be negative. -2 x -2 x -2 is -8. -2 x -2 is 4. We know it cannot be B x = -6 or D. x = -8.
Let's multiply 6 x 6 x 6.
36 x 6 = 216.
Let's multiply 8 x 8 x 8.
64 x 8 = 512
The answer would be C. x = 8.
I hope that this helps! :)
Answer:
X=3 and X=4
Step-by-step explanation:
AC So it is 12 and 3, and 4 time together is 12 it is negative and b is positive so factor is
(X-3)(X+4)
