<h2>
Answer:</h2>
<h2>
Step-by-step explanation:</h2>
A prism is a solid object having two identical bases, hence the same cross section along the length. Prism are called after the name of their base. In a right prism every edge that connects the base and the opposite face makes right angles with both faces. Moreover, a triangular prism is a solid whose base is a triangle. In general, a prism's volume is always equal to the area of its base, which has the same area of the top face, times its height. In mathematical language:
Since the base is an equilateral triangle with side 4 cm, then we'll use Heron's formula to find the area. This formula uses triangle's side lengths and the semiperimeter. A polygon's semiperimeter s is half its perimeter. So the area of a triangle can be found by 
being 
the corresponding sides of the triangle. So:
Finally:
Answer:
$580
Step-by-step explanation:
Step 1:
$200 + $380
Answer:
$580
Hope This Helps :)
K=-1 or k=5
either quantity could equal zero, so put each quantity equal to zero and solve for k.
hope this helps :)
Answer: 56 years
Step-by-step explanation:
Let Adam's age be 
, since the father is 3 times as old as him , then the father will be 
.
Two years ago
Adam = 
Father = 
since Adam was 15 years old 2 years ago , this means that
add 2 to both sides
Therefore , Adam is presently 17 years old , then the father will be 3(17) years , which means that the father is presently 51 years old.
In 5 years time , the father will be 51 + 5 years old. That is , the father will be 56 years old in 5 years time
A moving sidewalk at an airport moves at a rate of 1.7 ft/sec. Walking on the moving sidewalk, a person travels 104 ft forward in the time it takes to travel 52 ft in the opposite direction.
