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nikitadnepr [17]
3 years ago
12

Which statement is true about the purpose of trend lines in scatterplots?

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
7 0

Answer:

c just took the test edge 2020

Step-by-step explanation:

chubhunter [2.5K]3 years ago
4 0

Answer:

✅ A trend line can be used to make predictions in real-world situations.

Step-by-step explanation:

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Find all real solutions of the equation by completing the square. (Enter your answers as a comma-separated list.) x2 − 4x − 8 =
Nat2105 [25]

Answer:

After completing the square the expression is (x-2)^2 -12 =0 and real solution are x = 5.46 and x = -1.46

Step-by-step explanation:

We need to complete the square:

x^2 − 4x − 8 = 0

x^2 -2(x)(2)+(2)^2 -8 -4 =0

(x^2 -4x +4) - 12 = 0

(x-2)^2 -12 =0

Now, finding the value of x

(x-2)^2 -12 =0

(x-2)^2 = 12

taking square root on both sides

\sqrt{(x-2)^2}= \sqrt{12} \\(x-2) = \pm\sqrt{12} \\x = \pm\sqrt{12} +2\\x = \sqrt{12}+2 \,\,and\,\,x=-\sqrt{12}+2\\x= 3.46+2 \,\,and\,\,x=-3.46+2\\x =5.46\,\,and\,\,x=-1.46

So, After completing the square the expression is (x-2)^2 -12 =0 and real solution are x = 5.46 and x = -1.46

5 0
3 years ago
Mandy's square quilt measures 99 in on each edge. how many yd of trim does she need to buy to go around the entire quilt
Masteriza [31]
4x99=396in
1 yard=36 in
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4 houses in 3 days
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ABCD is a square. <br><br><br><br> What is the measure of angle BAC?
bezimeni [28]
Angle BAC is 45 degrees. The diagonal bisects angle BAD and since all angles in a square are 90 degrees, half of 90 is 45 degrees.
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Step-by-step explanation:

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Solving like terms

-2.5z - 5

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