Step-by-step explanation:
sin(s+t) = sin(s)+cos(t) which results
(sin(s)×cos(t))/(cos(s)cos(t)) + (cos(s)×sin(t))/(cos(s)cos(t))
knowing that tan=sin/cos and that cos/cos=1 and sin/sin=1
resulting tan s ×1 + tan t × 1 = tan s + tan t
The first one is the answer 0.9
(400,000 + 230,000) / 16.5 = 630,000 / 16.5 = 38181.8....rounds to 38182 units
Answer:
B
Step-by-step explanation:
I think I'm not sure. Please tell me if I'm wrong.
Jasmine's rate is 1/10 alleys per hour
Together their rate is 1/4.44 alleys per hour.
Joe's rate must be
1/4.44 - 1/10 = 139/1110 alleys per hour
It would take Joe
1110/139 ≈ 7.99 hours to do an alley alone.
Let's call it 8 hours.
