Assume that blood pressure readings are normally distributed with a mean of 120 and a standard deviation of 8. If 100 people are
1 answer:
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ANSWER
EXPLANATION
To find the expression that is equivalent to
we must first expand
Then we rearrange to find the required expression.
So let's get started.
We expand the parenthesis on the right hand side to get,
We expand again to obtain,
Let us group the cubed terms on the right hand side to get,
We make the cubed terms the subject,
We factor to get,
We expand the bracket on the left hand side to get,
We finally simplify to get,
EXPLANATION
To find the expression that is equivalent to
we must first expand
Then we rearrange to find the required expression.
So let's get started.
We expand the parenthesis on the right hand side to get,
We expand again to obtain,
Let us group the cubed terms on the right hand side to get,
We make the cubed terms the subject,
We factor to get,
We expand the bracket on the left hand side to get,
We finally simplify to get,
Answer:
Step-by-step explanation:
A linear pair are two given angles whose sum is equal to .
Let the exterior angle be represented by , and the three interior angles of the triangle be represented by
,
and
.
Assume that the vertex angle is the linear pair to the exterior angle
.
i.e +
=
(sum of angles on a straight line)
Thus,
i. +
=
(sum of two opposite interior angles is equal to an exterior angle)
⇒ =
-
Also,
=
-
But,
+
+
=
(sum of angles in a triangle)
⇒ =
- (
+
)
and
+
=
-
ii. +
+
=
(sum of angles in a triangle)
=
- (
+
)
Also,
+
=
⇒ =
-
=
-