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4 years ago

A factor other than the independent variable that might produce an effect in an experiment is called a

Mathematics

1 answer:

Varvara68 [4.7K]4 years ago

8 0

The answer is Confounding Variable

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A set of three scores consists of the values 3, 7, and 2. Σ2X-2 = 22 E(x-1)2 = -41 Hint: Remember to follow the order of mathema

wolverine [178]

Answer:

Step-by-step explanation:

Given the following scores 3, 7 and 2, we are to find the expression Σ2X-2 and Σ(X-1)²

The value of X's are 3, 7 and 2. Substituting the values we will have;

Σ2X-2 = [2(3)+2(7)+2(2)] - 2

Σ2X-2 = (6+14+4) - 2

Σ2X-2 = 24-2

Σ2X-2 = 22

For Σ(X-1)²

Σ(X-1)² = (3-1)²+ (7-1)² + (2-1)²

Σ(X-1)² = 2²+6²+1²

Σ(X-1)² = 4+ 36+1

Σ(X-1)² = 41

7 0

3 years ago

According to the problem-solving strategies you've learned so far, once yo

Darina [25.2K]

Answer:

true

Step-by-step explanation:

it is good to go back to the equation because maybe you placed a number wrongly or you did not understood the problem correctly

6 0

3 years ago

The table shows the number of feathers Patsy the Peacock sold at each of the 8 festivals this year. Based on this data, what is

Readme [11.4K]

Answer:75%

Step-by-step explanation:

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4 years ago

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Find the equation of the straight line which passes through the point (-1,3) and make intercept on x - axis as thrice that on y

Triss [41]

Answer:

$y = -\frac{1}{3}x + \frac{8}{3}$

Step-by-step explanation:

Given

$(x_1,y_1) = (-1,3)$

$Intercept\ on\ x-axis = Intercept\ on\ y-axis.$

Required

Determine the equation

First, we calculate the intercepts using:

$\frac{x}{a} + \frac{y}{b} = 1$

Where

b = Intercept on y axis.

a = Intercept on x axis.

From the question:

$a = 3b$

The equation becomes:

$\frac{x}{3b} + \frac{y}{b} = 1$

Multiply through by 3b

$x + 3y = 3b$

We have: $(x_1,y_1) = (-1,3)$

So:

$-1 + 3 * 3 = 3b$

$8 = 3b$

Make b the subject

$b = \frac{8}{3}$

Substitute $b = \frac{8}{3}$ in $x + 3y = 3b$ to get the equation

$x + 3y = 3 * \frac{8}{3}$

$x + 3y = 8$

Make 3y the subject

$3y = -x + 8$

Make y the subject

$y = -\frac{1}{3}x + \frac{8}{3}$

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3 years ago

OMG, GUYSS please helppp this is due in like.. 10 mins.. will give brainliest, please also add an explanation... THANKYOU I LOVE

OleMash [197]

Answer:

19,000 pa.

Step-by-step explanation:

I hope this helps

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3 years ago