Please Help!! The surface area of a cone is 175π square units. The radius of the base is 5 units. What is the slant height of the cone?
A) 12 units
B) 15 units
C) 21 units
D) 27 units
E) 30

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.