Bike to work: d=16*t
ride home: d = 27*.4 =10.8
solve for t
10.8 = 16*t
t = 10.8/16
0.7 of an hour
Answer: First I suggest that you write out the all the proportions which govern the 3 right triangles involved.
Once you do that you will find this one:
PQ/PS =PR/PQ
PR=PS+SR
Substitution will give you this quadratic:PQ2=PS2+PS*SR
144=PS2+7PS which has only one solution which make sense, namely 9
Then QS=sqrt(144-81)
Step-by-step explanation:
N would be equal to -1, so the last pair of parentheses would be (6,-1).
Answer:
EA = 
Step-by-step explanation:
Δ CEA and Δ CDB are similar by the AA postulate. Then the ratios of corresponding sides are in proportion , that is
= 
( substitute values )
= 
= 
( cross- multiply )
9 EA = 150 ( divide both sides by 9 )
EA = 
=
