Each of the 5 saw 15 birds a day, so they saw 75 each day for 14 days. 75 times 14 is 1,050. They saw in total, 1,050 birds.
Answer:
<u>The correct answer is the letter C. </u>
Step-by-step explanation:
We can use the following trigonometric identity:
(1)
(2)
Solving each equation by b and equaling we have:


Let's recall that:
Then we have:

Using equation (1) we can find b.
Finally, we can find a using the next equation:

<u>Therefore, the correct answer is the letter C. </u>
I hope it helps you!
The statement is False.
For this, it is enough to show a case in which the subtraction of two positive numbers is negative.
For this, we must choose two numbers.
Suppose we want to subtract the following numbers:
Number 1: 5
Number 2: 10
Subtracting both numbers we have:

We observe that the result is negative. Therefore, the given conclusion is false.
Answer:
Counterexample:
