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Elanso [62]
2 years ago
9

The number of calculators and backpacks that were turned into the school lost and found have been recorded for 10 days in the sc

atterplot below. Which statement is best supported by the scatter plot?
A. There is a positive linear association between the number of calculators and backpacks.
B. There is a negative linear association between the number of calculators and backpacks.
C. There is a non-linear association between the number of calculators and backpacks.
D. There is no apparent association between the number of calculators and backpacks.
Mathematics
1 answer:
34kurt2 years ago
8 0

You need to show the scatter plot

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Answer: The number is 0.75 or 3/4

Step-by-step explanation:

let x = the number.

Now set up an equation: The product of a number (x) and -4 = -4x. So -4x is subtracted from the number - x.     x-(-4x)

Then, that equals 3 more than the number (x) = x+3

So the equation is x-(-4x)=x+3.

Then, solve the equation!

x-(-4x)=x+3

x+4x=x+3  (Distribute the negative to the parentheses)

5x=x+3  (Combine like terms)

4x=3  (Get the Xs on one side by subtracting x from both sides)

x=0.75 or 3/4  (divide by the coefficiant, 4, on both sides)

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Step-by-step explanation:

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3 years ago
Find the variable 5x+8=3x
murzikaleks [220]

Answer:

-4 =x

Step-by-step explanation:

5x+8=3x

Subtract 5x from each side

5x-5x+8=3x-5x

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Divide by -2

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Given that the expression x³_ ax² + bx+c leaves the same remainder when divided by x + 1 or x-2, find 'a' in terms of 'b'.​
goblinko [34]

Answer:

Hi,

a=b+3

Step-by-step explanation:

\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=-1&&-1&a+1&-a-b-1\\---&---&---&---&---\\&1&-a-1&a+b+1&c-a-b-1\\\end{array}

\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=2&&2&4-2a&2b+8-4a\\---&---&---&---&---\\&1&2-a&b+4-2a&c+2b+8-4a\\\end{array}

Thus:

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