Answer:
∴
and
this two sides include 
Step-by-step explanation:
Given;
A triangle 
We can see the figure of the triangle 
Where the
or
made by two sides
and
.
So
and
this two sides include 
Answer:
a=-11
b=11
c=22
d=44
Step-by-step explanation:
Answer:
f = .39
Step-by-step explanation:
d (v) = 2.15 v^2 / (64.4 f)
v = 40
d = 138
substitute these in
138 = 2.15 (40)^2 / (64.4 *f)
simplify
138 = 2.15 (*1600) / (64.4 *f)
138 = 3440 / (64.4 *f)
multiply each side by 64.4f
138 * 64.4 f = 3440
8887.2 f = 3440
divide by 8887.2
8887.2 f /8887.2= 3440/8887.2
f=.38707
to the nearest hundredth
f = .39
I think A.
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