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Marizza181 [45]
2 years ago
8

Write the inequality in interval notation X is greater than or equal to negative 4

Mathematics
1 answer:
lana [24]2 years ago
4 0
Here is our inequality.
x \geq -4

Let's go from least to greatest, and add in infinity as our maximum.
-4 \leq x \ \textless \  \infty

Our interval notation would look like this.
[-4,\ \infty)
We put the lower bound, then the higher bound, using brackets instead of parentheses if x can also be equal to that value.
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A carpenter wants to expand a square room. The new room will have one side 4 feet longer and the adjacent side 6 feet longer tha
gogolik [260]

Answer:

  Dimensions of original room = 12 x 12 feet.

Explanation:

 Let the size of old square room be a x a.

 New dimension = ( a+4 ) x ( a + 6 )

   We have area of the new room will be 144 square feet greater than the area of the original room.

  So,     ( a+4 ) x ( a + 6 ) = a x a + 144

              a²+10a+24= a²+144

              10a = 120

                  a = 12 feet.

 Dimensions of original room = 12 x 12 feet.

 

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2 years ago
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Step-by-step explanation:

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2 years ago
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alina1380 [7]
I have a photo that shows how I got the answer and what the answer is (Key: Red represents my work, while highlighter shows what the answer is):

6 0
3 years ago
Read 2 more answers
Im struggling with this one as well could someone help out?
guapka [62]
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In general, the rule is (x,y) ---> (x,-y)

So the answer is choice C
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AleksandrR [38]

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(straight from khan academy hints)

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