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3 years ago

Which r-value is the best estimate of the correlation coefficient for the variables in the scatter plot?

Mathematics

1 answer:

xeze [42]3 years ago

4 0

Answer:

Step-by-step explanation:

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Form quadratic functions given the following information:<br> Zeroes at 4 and –2, f(0)=4

laila [671]

Answer:

$f(x)=-0.5x^2+x+4$

Step-by-step explanation:

we know that

A quadratic function in factored form is equal to

$f(x)=a(x-x_1)(x-x_2)$

where

a is the leading coefficient

x_1 and x_2 are the zeroes of the function

substitute the given values

$f(x)=a(x-4)(x+2)$

Find the value of a

Remember that

For x=0 ----> f(0)=4

substitute

$4=a(0-4)(0+2)$

$4=a(-8)\\a=-0.5$

$f(x)=-0.5(x-4)(x+2)$

$f(x)=-0.5(x^2+2x-4x-8)$

$f(x)=-0.5(x^2-2x-8)$

$f(x)=-0.5x^2+x+4$

5 0

3 years ago

I need this answered in ONE minute

Helen [10]

Answer:

$x^4 + 4x^3 + 6x^2 + 7x + 2$

Step-by-step explanation:

We are asked to multiply the given polynomials.

$(x^ 2 + 3x + 1) \times (x^2 + x + 2)$

Multiply each term of the first polynomial to each term of the second polynomial.

$x^ 2 \times (x^2 + x + 2) = x^4 + x^3 + 2x^2$

$3x \times (x^2 + x + 2) = 3x^3 + 3x^2 + 6x$

$1 \times (x^2 + x + 2) = x^2 + x + 2$

Add the results

$(x^4 + x^3 + 2x^2) + (3x^3 + 3x^2 + 6x) + ( x^2 + x + 2)$

Combine the like terms

$x^4 + 4x^3 + 6x^2 + 7x + 2$

The answer is written in descending powers of x.

7 0

3 years ago

Vector bought 15.6 pounds of paintballs. All together, the balls cost $35.99. About how much did the paintballs cost per pound?

cricket20 [7]

Answer: it would coast about $2.31 per pound

3 0

3 years ago

Read 2 more answers

19p-6(4p-8)=7(p-12)<br> Pls help am confused

elena-s [515]

Answer:

p=11

Step-by-step explanation:

4 0

3 years ago

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An online file storage site offers a payment plan where users

lozanna [386]

Answer: 95.40

Step-by-step explanation:

7.95*12=95.40

6 0

3 years ago