Question

Which equation can be used to solve for c?

Answer 1

Answer:

$c=\frac{5}{cos(35^{\circ})}$

Step-by-step explanation:

Take a look to the picture I attached you. Now the functions on a right triangle are defined as:

$sin(\theta)=\frac{opposite}{hypotenuse}\hspace{10}csc(\theta)=\frac{hypotenuse}{opposite} \\\\cos(\theta)=\frac{adjacent}{hypotenuse}\hspace{10}sec(\theta)=\frac{hypotenuse}{adjacent} \\\\tan(\theta)=\frac{opposite}{adjacent}\hspace{17}cot(\theta)=\frac{adjacent}{opposite}$

Using the picture and the previous equations, it's easier to conclude that the best trigonometry function to use in this case is the cosine function, therefore:

$cos(35^{\circ})=\frac{5}{c}$

Finally, solving for c:

$c=\frac{5}{cos(35^{\circ})}$

Answer 2

Answer:

c=5/(sin)35...................

Step-by-step explanation: