Answer:
2. $76.5
3. $10.12
Step-by-step explanation:
2. 110 × .35 = 38.5
110 - 38.5 = 71.5
71.5 × 1.07 = 76.50
3. 9 × 1.04 = 9.36
9.36 × 1.04 = 9.73
9.73 × 1.04 = 10.12
<em>good luck, i hope this helps :)</em>
Answer:
yes !
Step-by-step explanation:
$14.70/6 = $2.45
$2.45 x 5 = $12.25
Hello,
cos 2t=2cos²t-1
2cos 2t -cos t-1=
==>2(2cos² t -1)-cos t-1=0
==>4cos² t -cos t -3=0
Δ=(1+4*4*3=49=7²
cos t= (1+7)/8 or cos t=(1-7)/8
cos t =1 or cos t=-3/4
t=0° or t=138.590377...°
Lying in the same straight line i think..