Answer:
21 N
Step-by-step explanation:
let mass be m and weight be w
Given w varies directly with m then the equation relating them is
w = km ← k is the constant of variation
To find k use the condition m = 7 , w = 49 , then
49 = 7k ( divide both sides by 7 )
7 = k
w = 7m ← equation of variation
When m = 3 , then
w = 7 × 3 = 21 N
My Question:
Is there any answer choices?
Evidence are simply facts to support a claim, while counterexamples are instances to show the contradictions in a claim
<em>The question is incomplete, as the required drop-down menus are missing. So, I will give a general explanation</em>
<em />
To show that a statement is true, you need evidence.
Take for instance:

The evidence that the above proof is true is by taking the <em>squares of both sides of </em>


However, a counterexample does not need a proof per se.
What a counterexample needs is just an instance or example, to show that:

An instance to prove that:
is false is:

Hence, the complete statement could be:
<em>In a direct proof, evidence is used to support a proof
. On the other hand, a counterexample is a single example that shows that a proof is false.</em>
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Read more about evidence and counterexample at:
brainly.com/question/88496
Answer:
Its b
Step-by-step explanation:
got it right on edg