4(x – 7)2 – (x – 7) + 3
(4x2 – x + 3) – 7
(4x2 – x + 3)(x – 7)
Answer:
D is the correct option.
Step-by-step explanation:
We have been given that
We have to find
which means we have to find the product of these two expressions.
We can rewrite as
Therefore, we have
Hence, the equivalent expression is
D is the correct option.
Answer: The correct option is (B) -16.
Step-by-step explanation: We are given to evaluate the value of the following expression for b = 8 and c = -4 :
To find the value of expression (i), we need to substitute the values of b and c in equation (i).
We will be using the following property of exponents :
Therefore, from equation (i), we get
Thus, option (B) is correct.
Considering the time constraints of the situation, only 2 trips can be made before the ship sinks. Therefore, only 10 people, as the boat carries 5 per trip, can reach the island alive.
This question is a mathematical problem that can be solved by considering the time constraints. To start, we know that the boat can carry 5 people at a time and it takes 9 minutes to go from the ship to the island and back.
This means that only 5 people can be transported to the island every 9 minutes.
However, the ship will sink in 20 minutes, so the boat will only be able to make 2 trips - one at the beginning, and the second after 9 minutes. Therefore only a total of 10 people (5 people per trip) will be able to reach the island before the ship sinks.
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