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STatiana [176]
1 year ago
6

Use the linear regression feature on a graphing calculator to find the correlation coefficient for the data. Round your answer t

o three decimal places.
x y
8.2 1
1.6 98
9.0 3
7.3 13
3.6 77
1.9 79
1.4 86
The correlation coefficient is about
_______


Question 2
This means that there is __________
between the variables.

need urgent help!!!
Mathematics
1 answer:
atroni [7]1 year ago
5 0
7.5442 this means that there is two variables in between
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Evaluate the expression. P(9, 3) · P(5, 4)
boyakko [2]

Answer:

P(9,3) *P(5,4)

And if we use the permutation formula given by:

nPx = \frac{n!}{(n-x)!}

And replacing we got:

\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520

Step-by-step explanation:

For this problem we want to find the following expressionÑ

P(9,3) *P(5,4)

And if we use the permutation formula given by:

nPx = \frac{n!}{(n-x)!}

And replacing we got:

\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520

6 0
2 years ago
Consider this polynomial, where a is an unknown real number.
DENIUS [597]

Answer:

Step-by-step explanation:

Correct steps to find the value of 'a' should be,

Braulio's synthetic division should be,

-1  |     1       5         a          -3           11

   

    <u>            -1        -4        (4 - a)     (a - 1)  </u>

         1      4     (a - 4)     (1 - a)     (a + 10)

Here remainder is (a + 10).

So (a + 10) = 17 ⇒ a = 7

Braulio Incorrectly found a value of 'a' because he should have used (-1) instead of 1.

Zahra's calculation by remainder theorem should be,

p(x) = x⁴ + 5x³ + ax² - 3x + 11

p(-1) = (-1)⁴ + 5(-1)³ + a(-1)² - 3(-1) + 11

      = 1 - 5 + a + 3 + 11

      = (a + 10)

Since, remainder of the solution is 17,

(a + 10) = 17 ⇒ a = 7

Zahra incorrectly found the value of 'a' because she incorrectly solved the powers to (-1).

8 0
2 years ago
320miles on 34 gallons in simplest form
Alborosie

Answer:

9 and 2/5 gallons

Step-by-step explanation:

34 x 9 gallons = 306 miles

14 / 34 = 4/10 of the gallons

4/10 simplified = 2/5

Answer: 9 2/5

8 0
2 years ago
Read 2 more answers
A way that landowners took advantage of sharecroppers was by:
Andrews [41]

The answer is d . Paying less for crops raised by Africa. Americans

3 0
2 years ago
Read 2 more answers
Triangle ABC has the side lengths 6 in., 9 in., and 11 in.
andriy [413]

Answer:

The BEST statement describes how the triangle could be altered in order to make it a right triangle

B.

One inch could be removed from the 9 in. leg and a new hypotenuse could be drawn.

Step-by-step explanation:

Triangle ABC has the side lengths 6 in., 9 in., and 11 in.

The only condition is that satisfy to become Δ ABC a Right angle triangle is

Longer leg (one inch remove) = 9 - 1 = 8 inch

New hypotenuse = 10 inch

So that Pythagoras theorem must satisfy

(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}

So (Hypotenuse)² = 10² = 100

     (Shorter leg)²  = 6² = 36

     (Longer leg)² = 8² = 64

So we have,

(Shorter leg)² + (Longer leg)² = 36 + 64

                                                = 100

                                                 = (Hypotenuse)²

Therefore, Δ ABC is right Triangle By Converse of Pythagoras Theorem.

Therefore,

The BEST statement describes how the triangle could be altered in order to make it a right triangle

B.

One inch could be removed from the 9 in. leg and a new hypotenuse could be drawn.

4 0
2 years ago
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