Step-by-step explanation:
an object and its shadow create a right-angled triangle.
2 objects and their shadows create 2 similar right-angled triangles.
that means the angles are the same, and the side lengths of one triangle all correlate with the corresponding side lengths of the other triangle via the same factor.
so,
42 × f = 6
f = 6/42 = 1/7
the length of Joel's shadow is then
20 × f = 20 × 1/7 = 2.857142857... ft
Answer:
It is not rational
Step-by-step explanation:
Given

Required
Rational or Irrational


So, we have:


<em>The result of the product: 4.84974 is not rational because it can not be represented as a fraction of two integers.</em>
The answer to the question is b
Answer:
5.8
Step-by-step explanation:
29/5=5.8