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
Answer:
1 pound = .73 dollars rounded.
Step-by-step explanation:
This is like a rate question. Speed is in miles / hour only the units for this question is pound / dollar.
pounds = 33
dollars = 45
1 pound is 33/45
1 pound = 0.73
Answer: 
Step-by-step explanation:
You need to draw a right triangle as the one attached, where 
is the angle of elevation from the fire to the top of the fire tower.
You need to use the Inverse trigonometric function Arctangent:
Observe the triangle. You can identify that:
Then, you can substitute values:
Finally, evaluating, you get that the angle of elevation from the fire to the top of the fire tower is the following:
Rounded to the the nearest tenth of a degree:
Answer:
The answer is C, use a calculator and you'll get the answer.
Answer:
14
Step-by-step explanation:
24/36=(x+4)/(2x-1)
