Answer:
A. 13.5ft
Step-by-step explanation:
V = (4,-3,5)
w = (2,6,-1)
z = (3,0,4)
u = 0.5 v - w + 2 z = 0.5 (4,-3,5) - (2,6,-1) + 2 (3,0,4)
= ( [0.5 * 4 - 2 + 2 *3] , [0.5*-3-6+2*0] , [0.5*5--1+2*4] )
= ( 6 , -7.5 , 11.5 )
The correct answer is option D
Answer: ∠A= 
Step-by-step explanation:
Since we have given that
CD bisects m∠ACB,
⇒ m∠ACD= m∠DCB =x (say)
And, AB=BC, m∠BEC=90°, and m∠DCE=42°
So,
m∠CAD=m∠ACD
In ΔDCE,

Now, in ΔACD,

Hence , ∠A= 
Answer:
$33.84
Step-by-step explanation:
Sale price = price - 10% = 90%
90% = 0.9
37.6(0.9) = $33.84