Answer:
(a) Orthogonal, (b) Neither, (c) Parallel, d( Orthogonal
Step-by-step explanation:
a and b are parallel is a=kb
a and b if a dot b = 0
(a) a dot b = (9)(-4)+6(6)=-36+36=0
a and b are orthogonal
(b) a dot b = 40-7-21=12
a=kb -> there is no k value satisfying the equation
a and b are neither parallel or orthogonal
(c) a dot b = -12-108-48=-168
a=kb -> k=-3/4 satisfies the equation
a and b are parallel
(d) a dot b= 9-3-6=0
a and b are orthogonal
Answer:
it would be 7 and 8
Step-by-step explanation:

The shown pair of angles are Co interior angle pair, therefore the sum of those angles is 180°






The required value of x is 7°
Answer:
The given statement is false.
Step-by-step explanation:
We are given the following in the question:

The given statement is

Putting the values on the right side of the given statement

Thus, the given statement is false.
This can be explained with the help of an example:
For x = 3

Have you learned about the Pythagorean theorem? a² + b² = c² . . . you should teach them about this.