Answer:
Y = 59.0°
Step-by-step explanation:
Using the cosine rule in terms of x, y and z
cosY =
with x = 22, y = 20 and z = 18
cosY =
=
= , thus
Y = ( ) ≈ 59.0° ( to the nearest tenth )
5(x+3), the binomial has a common multiple of 5, so we factor it out.
We are given the linear function below:
To find f(4), simply substitute x = 4 in the equation.
Answer
<span>9.5 gallons 171 miles
_______________
9.5 gallons x miles
_______________
x = 171(9.5)/247 =
</span>