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babunello [35]
3 years ago
6

A certain standardized test measures students’ knowledge in English and math. The English and math scores for 10 randomly select

ed students are given in the table. A 2-column table with 10 rows. Column 1 is labeled English (x) with entries 450, 470, 510, 520, 540, 570, 590, 620, 670, 680. Column 2 is labeled Math (y) with entries 490, 480, 500, 580, 550, 540, 610, 590, 620, 650. Using technology, what is the equation for the least-squares regression line?
Mathematics
1 answer:
rodikova [14]3 years ago
6 0

Answer

A.
y=180.2 +0.68x

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Alenkinab [10]

Answer:

Prime number are a multiples of 8 because there are multiples of 8

Step-by-step explanation:

The multiples of 8 are 8, 16, 24, 32, 40, 48, 56, 64, 72, 80

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3 years ago
At what point do these lines intersect? A<br> -24x - 4y =-164<br> y=41 - 6x
SSSSS [86.1K]

Answer:

Infinite points

General Formulas and Concepts:

<u>Pre-Algebra </u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Distributive Property

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Functions
  • Terms/Coefficients
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

-24x - 4y = -164

y = 41 - 6x

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in <em>y</em> [1st Equation]:                                                                           -24x - 4(41 - 6x) = -164
  2. [Distributive Property] Distribute -4:                                                                -24x - 164 + 24x = -164
  3. [Addition] Combine like terms:                                                                       -164 = -164

Here we see that -164 does indeed equal -164.

∴ We have an infinite amount of solutions.

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Anna35 [415]

Answer:

The answer is x = -13/4

Step-by-step explanation:

-13/4 + 2  /  -13/4 +3 = 5

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Answer:

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Step-by-step explanation:

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