Answer:
3
Step-by-step explanation:
(3 + √6) (3 - √6) = 9-3√6+3√6-6 = 9-6 = 3
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The factors are (a - 2) and (6a + 5) .
If the expression is equal to zero, then 'a' can be 2, and 'a' can be -5/6 .
The weight of the third heaviest among the four dogs is 2 kg.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
The 4 dogs weight is 60 kg with each dog weight been different. The second heaviest dog weighs 28 kg.
Let the heaviest dog be 29 kg, the third heaviest be 2 kg and the fourth be 1 kg.
29 + 28 + 2 + 1 = 60 kg
The weight of the third heaviest among the four dogs is 2 kg.
Find out more on equation at: brainly.com/question/2972832
Answer:
D
Step-by-step explanation:
