Question

What is the value of w?A. 7B. 3.5C. 75D. 14

Answer 1

cosine = adjascent / hipotenuse

cos 30 = (7√3)/w

`\cos \text{ 30 = }\frac{7\sqrt[]{3}}{w}\Longrightarrow w=\frac{7\sqrt[]{3}}{\cos\text{ 30}}=\frac{7\sqrt[]{3}}{\frac{\sqrt[]{3}}{2}}=(7)/((1)/(2))=14\Longrightarrow\text{ w = 14}`

Answer:

w = 14