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zalisa [80]
3 years ago
8

Based on the Pythagorean theorem, select all of the following statements that must be true

Mathematics
1 answer:
8_murik_8 [283]3 years ago
7 0

Answer:

The 1st and 4th statements are true.

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What is the percent of change from 8,000 to 2,000?
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Step-by-step explanation:

If I am not mistaken, you can input this into everyday values like a shirt.

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Read 2 more answers
An integer is 15 more than 2 tomes another. If the product of two integers is -27 then find the integers
andre [41]

Answer:

x = 9 and y = -3

Step-by-step explanation:

Let's say the first integer is x and the second one is y. Then, if we put the words into mathematical expressions, we get:

x = 15 + 2y

xy = -27

We can use substitution to solve this system of equations. We put 15 + 2y in for x in xy = -27:

(15 + 2y)*y = -27 ⇒ 2y² + 15y = -27 ⇒ 2y² + 15y + 27 = 0

Now, we have a quadratic to solve, so after some trial and error, we get:

(2y + 9)*(y + 3) = 0

Setting each of these to 0, we get two possible answers for y:

y = -9/2 or y = -3.

However, it says that y is an integer, so it can't be -9/2 and must be -3. We use this to find x:

x = 15 + 2*(-3) = 15 - 6 = 9

So, the two numbers are x = 9 and y = -3.

7 0
3 years ago
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