Answer: second option.
Step-by-step explanation:
You must apply
Then, given the right triangle and the angle D, the opposite side and the hypotenuse of the triangle are the following:
Therefore, when you substitute values, you have:
Reduce the fraction, then you obtain:
Given two points , the slope of the line passing through the two points is
So, in your case, you have
Answer:
Step-by-step explanation:
Given
Required
Make t the subject
Cross Multiply
Collect Like Terms
Factorize:
Make t the subject
Answer:
B
Step-by-step explanation:
Noting the following rule of radicals
×
=
Given
( +
)(
-
)
Each term in the second factor is multiplied by each term in the first factor
= (
-
) +
(
-
) ← distribute parenthesis
= -
+
-
