The slope of cd is 2/5
the slope of ef is -4-y/10
the lines are parallel so the slopes are equal
-4-y/10= 2/5
-4-y=2/5x10=4
-y=4=4=8
y=-8
Step-by-step explanation:
A.) Correct Answer: 12%
Given , Principle = ₹ 1 , Time = 1 month = ( 1 / 12 ) year and SI = 1 paisa = ₹ ( 1 / 100 )
As we know that ,
Rate =SI × 100Principal × Time
Rate =(1 ÷ 100) × 100= 12% p.a.1 × (1 ÷ 12)
B.) Correct Answer:
Answer:
The two pieces of information are needed to prove that line AB is a perpendicular bisector of line CD are:
m∠AGD = 90° ⇒ B
CG = GD ⇒ C
Step-by-step explanation:
If line m is the perpendicular bisector of line AB and intersect it at point D
- The angles around point D are right angles (the measure of each one 90°)
Let us use these facts to solve our question
Look at the given figure
∵ Line AB is the perpendicular bisector of line CD
∵ Line AB intersects line CD at point G
∴ G is the midpoint of CD
→ That means the point G divides the line CD into two equal parts
CG and GD
∴ CG = GD
∵ AB ⊥ CD at G
∴ ∠AGD and ∠AGC are right angles
→ the measure of the right angle is 90°
∴ m∠AGD = m∠AGC = 90°
The two pieces of information are needed to prove that line AB is a perpendicular bisector of line CD are:
m∠AGD = 90° ⇒ B
CG = GD ⇒ C
Answer:
7x^2
Step-by-step explanation:
hope this help's.
