9ft shadow
Set up a proportion with height/shadow
8/18=4/x, cross multiply
8x=72
x=9
The area that the plane can fly and be in the zone known as the Bermuda is; 346952 mile²
<h3>How to use the area rule to find the area of a triangle?</h3>
The area rule states that the area of any triangle is equal to half the product of the lengths of the two sides of the triangle multiplied by the sine of the angle included by the two sides.
Now, from the question, we are give;
Side 1 = 900 miles
Side 2 = 930 miles
Angle between two sides = 56°.
Thus, by the area rule we have;
Area = (1/2) * 900 * 930 * sin 56°
Area = 346952 mile²
Read more about Area rule at; brainly.com/question/20839703
#SPJ1
Answer:
(2k+1)(k+3)
Step-by-step explanation:
14k²+49k+21
simplify by dividing the whole equation by 7
2k²+7k+3
factorise
(2k+1)(k+3)
