Answer:
c) 12/15 = 4/5
Step-by-step explanation:
imagine we mirror the triangle up, so that Z is on top.
then you can clearly see that 6 is cos(X) times r (and r is then 7.5).
XY is sin(X)×7.5
and again, 7.5 is r (the line making the X angle).
so, the cosine ratio of X is
6 = cos(X)×7.5
cos(X) = 6/7.5 or then 12/15. or simplified 4/5.
Point W represents the y-intercept
Answer:
2.00
Step-by-step explanation:
let the empty box be the variable n. n+0.34=2.34
subtract .34 from both sides
n=2.00
Answer:
x=6
Step-by-step explanation:
x + 6 = x + x original problem
x + 6 = 2x combine like terms
-x = -x subtract x from both sides to have like terms on each side
6 = x solution
Cone's volume is
where S - surface area, h - height
Surface area =
r = 18/2=9
h= 14
π = 3.14
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