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KengaRu [80]
3 years ago
5

True or False? When doing linear regression, if the correlation coefficient is negative, the slope of the line is positive.

Mathematics
1 answer:
7nadin3 [17]3 years ago
5 0
False............................................
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What is Y when x=196
grigory [225]
Their is no y-intercept
7 0
3 years ago
Help me!!!!!!!!!!!!!
fgiga [73]

For this case we have the following function:

y=\frac{3}{4}x^2

When evaluating x = 2 in the given function we have:

y=\frac{3}{4}(2)^2

Rewriting we have:

y=\frac{3}{4}(4)

y=3

Therefore, the pair ordered for this point is given by:

(x, y) = (2,3)

The ordered pair of the table for x = 2 is:

(x, y) = (2,4)

Therefore, the table is incorrect for x = 2

Answer:

The row in the table is incorrect for:

x=2

4 0
3 years ago
Uh could you please help-
tamaranim1 [39]
I think it would be the second answer but I’m not positive
7 0
4 years ago
Factor:<br><br> 4b2−12b+9<br><br> A) (2b−3)2<br> B) (2b+3)2<br> C) (2b−3)(2b+3)<br> D) (2b−9)(2b−1)
tatuchka [14]

Answer:

A

Step-by-step explanation:

(2b-3)^2 = (2b-3)(2b-3) = 4b^2-12b+9

7 0
4 years ago
Prove that sin(Π÷14)sin(3Π÷14)sin(5Π÷14)=2​
Oxana [17]

Answer:

The correct prove will be:

sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14}) = \frac{1}{8}

Step-by-step explanation:

    sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14})

            Multiply and Divide by 2cos(\frac{\pi }{14})

= \frac{2sin(\frac{\pi }{14})cos(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14})}{2cos(\frac{\pi }{14})}

⇒ Let \frac{\pi }{14} = Ф  and 7Ф = \frac{\pi }{2}

= sin2Ф sin3Ф sin5Ф ÷ 2cosФ

= 1/2(2sin2Фsin5Ф)sin3Ф ÷ 2cosФ

= (cos3Ф - cos7Ф) sin3Ф ÷ 4cosФ

= 1/2(2cos3Ф sin3Ф) ÷ 4cosФ               ∵cos7Ф = 0      

= sin6Ф ÷ 8cosФ

= sin(7Ф - Ф) ÷ 8cosФ                              

= (sin7ФcosФ - cos7ФsinФ) ÷ 8cosФ      ∵sin7Ф = 1  

= cosФ ÷ 8cosФ

= 1/8

Hence, The correct prove will be:

sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14}) = \frac{1}{8}

Keywords: prove, sinФ, cosФ

Learn more about trigonometric functions from brainly.com/question/7331447

#learnwithBrainly

4 0
3 years ago
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