Answer:
D
Step-by-step explanation:
Answer:
a). x + y + 90° = 180°
b). x = 67°
y = 23°
Step-by-step explanation:
The sum of all angles in a triangle is 180°.
One of the angles in the figure is a right angle, or 90°. Therefore the sum of the three angles in the figure is:
x + y + 90 = 180
We are also told that x + 2 = 3y.
Rearranging that to isolate x gives us:
x = 3y - 2
Thake the first equation and substitute the above expression of in place of x:
x + y + 90° = 180°
(3y-2) + y + 90° = 180°
4y + 88° = 180°
4 y = 92°
y = 23°
To find angle x, use y = 23°
x = 3y - 2
x = 3*(23°) - 2
x = 67°
The sum 90° + 67° + 23° = 180°
Answer:
it is orthogonal
Step-by-step explanation:
if you do the dot product.
U dot V = 0
(3 times 0) + (0 times 6 ) = 0
0 + 0 = 0
therefore it is orthogonal.
the dot product says that if u dot v equals zero, then you can say that it is orthogonal.
Answer:
0.5
Step-by-step explanation:
hope this helps
A) f(x) = 2 - 2x
f(0) = 2 - 2(0) = 2 - 0 = 2
f(2) = 2 - 2(2) = 2 - 4 = -2
f (4) = 2 - 2(4) = 2 - 8 = -6
b)
___________
| y = 2x - 5 | y |
________ |__
-2 | -9
-1 | -7
0 | -5
1 | -3
2 | -1
