Step-by-step explanation:
If the two chords are congruent, then they must be equidistant from the centre of the circle.
Answer: <u><em>D) They must be perpendicular</em></u>
A is rejected because the chord might not pass through the center of the circle.
B is rejected because the chords are not obligated to be parallel.
C is rejected because it is not compulsory for the chords to be perpendicular.
Answer:
6 + 8x
Step-by-step explanation:
0.5 inches ph * 3 hours = 1.5 inches
+ 10 inches he started with.
= 11.5 inches.
I don’t know about the second question
Answer:
Pattern seen is arithmetic progression. The both equations are same.
Step-by-step explanation:
a.The given pattern is 8,12,16,20,24....We can see that the difference between any two consecutive terms is 4.Therefore this is an AP(arithmetic progression).
b.Percy's equation , 
⇒
⇒
⇒
which is the same as Stella's equation . So , we can see that both equations are the same.
Answer:
1/6
Step-by-step explanation: