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3 years ago

I don’t understand what it’s asking me can someone explain without giving me the answer?

Mathematics

2 answers:

larisa86 [58]3 years ago

7 0

Basically it's just asking you to draw a picture with an explanation of what you drew or why you drew it.

Hope that this helped. (;

katrin2010 [14]3 years ago

7 0

With a diagram is most likely referring to drawing a picture to represent it, i.e. if you had 1/4, drawing a box, dividing it into fourths and filling in one of the fourths

With words is likely asking you to write out the fraction in words, i.e. "One Fourth" rather than 1/4.

I'm not quite sure, that wording is really cryptic, but those are my best guesses.

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(9 3 ) 6 = please help me answer this question

SashulF [63]

Answer: I think you meant (9^3) 6
If I’m not mistaken the answer is
4374 because 9x9x9= 729x6

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3 years ago

Given:

Oksana_A [137]

Answer:

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3 years ago

The correlation coefficient r between the values assumed by two variables, X

Flura [38]

The slope of the line of best fit to the raw-score scatter plot is 0.98

The equation is y = 0.98x - 3.74
The value of y given that x = 12 is 8.02

<h3>How to determine the slope of the line?</h3>

From the question, we have the following parameters that can be used in our computation:

Standard deviations of X, Sx = 1.88
Standard deviations of Y, Sy =2.45
Correlation coefficient, r between X and Y = 0.75

The slope (b) of the line is calculated as

b = r * Sy/Sx

Substitute the known values in the above equation, so, we have the following representation

b = 0.75 * 2.45/1.88

Evaluate

b = 0.98

<h3>The equation of the line of best fit</h3>

A linear equation is represented as

y = bx + c

Where

Slope = b

y-intercept = c

In (a), we have

b = 0.98

So, we have

y = 0.98x + c

Recall that the point (13, 9) is on the line of best fit.

So, we have

9 = 0.98 * 13 + c

This gives

9 = 12.74 + c

Evaluate

c = -3.74

So, we have

y = 0.98x - 3.74

<h3>The value of y from x</h3>

Here, we have

x = 12

So, we have

y = 0.98 x 12 - 3.74

Evaluate

y = 8.02