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Leokris [45]
3 years ago
8

Which statement best describes the association between variable X and variable Y?

Mathematics
2 answers:
Natasha2012 [34]3 years ago
7 0
D moderate positive association
Len [333]3 years ago
6 0
I think its D moderate positive association


moderate because it's scattered slightly and positove because its slope is positive
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C + d = 60<br> 2.5c + 1.75d = 123.75
likoan [24]

Answer:

  (c, d) = (25, 35)

Step-by-step explanation:

Multiply the first equation by 2.5 and subtract the second one:

  2.5(c +d) -(2.5c +1.75d) = 2.5(60) -(123.75)

  0.75d = 26.25 . . . . . . . . . simplify

  26.25/0.75 = d = 35 . . . . divide by the coefficient of d

  60 -d = c = 25 . . . . . . . . . use the first equation to find c

(c, d) = (25, 35)

3 0
2 years ago
you drive an average speed of 45 mph and arrive to school 1 minute early the next day you drive 40 mph and arrive late how many
qaws [65]
You live 12 miles from school
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3 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the ex
natka813 [3]

An expression is defined as a set of numbers, variables, and mathematical operations. The value of x for which the expression (x-1)(x-7)=0 is 1 and 7.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

For the given expression, (x-1)(x-7), the value of x for which the expression will be equal to 0 can be found by equation the factors of the expression to 0. Therefore,

x-1 = 0

x = 1

and

x-7=0

x = 7

Hence, the value of x for which the expression (x-1)(x-7)=0 is 1 and 7.

Learn more about Expression:

brainly.com/question/13947055

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8 0
2 years ago
If using the method of completing the square to solve the quadratic equation
lubasha [3.4K]

Answer:

31.25

Step-by-step explanation:

The general form of a complete square would be (x + a)^2 + b

Given an equation of X^2 + 15X + 25 = 0,

the idea is to reduce it into the form if (X + C)^2

which can be expanded into X^2 + 2XC + C^2

In this case 15 will be our 2C So our c will be 7.5.

Substituting in these numbers,

We have X^2 + 15X + (7.5)^2 = 0

However our original equation has 25 for its C^2, thus

we need to add 31.25 in order to get (7.5)^2

<u>FYI</u>

The final completed form will be (X + 7.5)^2 - 31.25

5 0
3 years ago
A geer on a machine turns at a rate of 3 revolutions per second. Identify the key feauters of the graph of this function
Harman [31]

https://rosemont.scusd.edu/sites/main/files/file-attachments/010516_answers_to_last_nights_hw.pdf

8 0
3 years ago
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