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LuckyWell [14K]
3 years ago
6

Explain how to use a best-fit line to make a prediction

Mathematics
1 answer:
vitfil [10]3 years ago
3 0
The line of best fit is like a slope. Slope is constant, so a hypothetical slope can help with predicting the future data of the graph.
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Simplify the given expression. (4x2squared-15x-21)+3x2squared-10)
Bess [88]

Answer:

7x^{2} - 15x -31

Step-by-step explanation:

(4x^{2} - 15x -21) + 3x^{2}  - 10 = 4x^{2} + 3x^{2} - 15x -21  - 10 = 7x^{2} - 15x -31

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3 years ago
Evaluate the expression when a= 5 and x= -2 -a+6x Thankyou ! !
kirill [66]
The equation would be -5+(-12), so the answer would be -17 :)
5 0
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What is the solution to the system of equations below y=-3/4x+3 and y=12.
Alexandra [31]
The correct answer choice is D.
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Reflexive Property, the property where the quantity equals itself.

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3 years ago
Find the x and y intercepts for the equation 2x + 7y = 42.
o-na [289]

Answer:

see explanation

Step-by-step explanation:

Given

2x + 7y = 42

To find the x- intercept let y = 0 in the equation and solve for x

2x + 7(0) = 42, that is

2x = 42 ( divide both sides by 2 )

x = 21 ← x- intercept or (21, 0 )

To find the y- intercept let x = 0 in the equation and solve for y

2(0) + 7y = 42 , that is

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y = 6 ← y- intercept or (0, 6 )

6 0
3 years ago
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