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EleoNora [17]
3 years ago
6

Which of the following is an even function?

Mathematics
1 answer:
Galina-37 [17]3 years ago
8 0

Answer:

f(x) = x^{2} - 1

Step-by-step explanation:

The definition of even function is: f(x) = f(-x)

I am going to assume the  second option is f(x) = x^{2} - 1 and the answer.

f(x) = x^{2} - 1\\f(-x) = (-x)^{2} - 1 = x^{2}-1

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Answer:

5. B

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Step-by-step explanation:

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7 0
3 years ago
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Hey!

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B-B-A-B

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Two complementary angles are such that one is 15 degrees less than
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
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The sum of 2 consecutive numbers is 37. Find the numbers. If x represents the smaller integer, then the larger integer is
NARA [144]

Answer:

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Step-by-step explanation:

There are a few ways this problem could be solved. The easiest route is to note that the first part of the question says "2 consecutive numbers". If the numbers are next to each other on a number line (consecutive) and x is the smaller number, the larger number is x + 1.

To check, let's find the two numbers. We know the numbers are next to each other on a number line and that together, they equal 37. Let's begin with 15 and 16.

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There are the two correct numbers. If x = the smaller number, x = 18.

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Since this is correct, we know for sure that the answer is x + 1.

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