Begin by using the cosine rule to find the unknown side.
Where a- unknown side, b is 12, c is 16 and angle in between is 108°
The cosine rule...
a² = b² + c² - 2bc cosA
= 12² + 16² - (2×12×16 cos108°)
= 518.655076
Taking the positive
square root...
a = 22.774
a = 22.8 cm nearest tenth
Answer:
Step-by-step explanation:
A. The conversion ratio is that 16 oz = 1 lb
B. 7.75 lb × ![\frac{16oz}{1lb}](https://tex.z-dn.net/?f=%5Cfrac%7B16oz%7D%7B1lb%7D)
From there the label of lb cancels out, leaving you with the label oz. Multiply straight across the top to get 124 oz.
Like shown here...take away 65 from both sides and then divide 7 on both sides
Cost
60+20+10+50+25=165
Tax
165*.06=9.90
Cost+Tax
165+9.90=174.90