<h3>
▄▄▄▄▄▄▄▄▄▄▄▄▄▄</h3>
We know that, Two angles are said to be complementary, if the sum of their measures is 90°.
<u>According to the Question</u>,
⇒ ∠ABD + ∠DBC = 90°
⇒ (2x + 30)° + (3x + 20)° = 90°
⇒ 2x + 30° + 3x + 20° = 90°
⇒ 5x + 50° = 90°
⇒ 5x = 90° - 50°
⇒ 5x = 40°
⇒ x = 40°/5
⇒ x = 8
<u>So</u>, <u>t</u><u>he measure of each angle will be</u>,
⇒ ∠ABD = (2x + 30)°
= 2 × 8 + 30°
= 16 + 30°
= 46°
⇒ ∠DBC = (3x + 20)°
= 3 × 8 + 30°
= 24 + 30°
<h3>
= 54° ▄▄▄▄▄▄▄▄▄▄▄▄▄▄</h3>
The vertex of the graph of y = (x - 1)2 - 5 is (1,-5)

First, find out how much
of
is.

Now, just add that to
.

There are
members now.
The vector sum of two vectors as (7,5) and (13,-5) is given by
which can be written in point form as (20,0) .
<u>Step-by-step explanation:</u>
Here we have , two vectors as (7,5) and (13,-5) Which are represented as :

Addition of vector is as same as normal addition of integers as :
⇒ 
⇒ 
⇒
,
where i & j are the unit vectors in direction x-axis and y-axis respectively.
The vector sum of two vectors as (7,5) and (13,-5) is given by
which can be written in point form as (20,0) .