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Eddi Din [679]
3 years ago
15

Lines s and t are perpendicular. if the slope of line s is 5,what is the slope of line f

Mathematics
2 answers:
Ne4ueva [31]3 years ago
7 0

the slope of line t would be the negative reciprocal which is -1/5

alexandr1967 [171]3 years ago
4 0

Lines s and t are perpendicular. As you know perpendicular lines, slope is opposite and reciprocal so if slope of line s = 5 then slope of line t = -1/5

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Step-by-step explanation:

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710 ÷ 10 = 71.

Rate of growth in people per year for those 10 years = 71 people per year.

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The mean number of hours of study time per week for a sample of 562 students is 23. If the margin of error for the population me
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The 98% confidence interval for the mean number of hours of study time per week for all students is (20.9, 25.1).

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In this question:

Mean of 23.

Margin of error 2.1.

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In 2015, the population of a town was 8914. The population is expected to grow at a rate of 1.36% each year. At this rate, what
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Nine more than seven times a number, n, gives the same value as one more than the square of the number. Write an equation and so
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Answer:

7n + 9 = n² + 1

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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

Equality Properties

<u>Algebra I</u>

  • Factoring
  • Solving quadratics

Step-by-step explanation:

<u>Step 1: Set up Equation</u>

"Nine more" is + 9

"Seven times a number" is 7n

"One more" is + 1

"Square of the [same] number" is n²

7n + 9 = n² + 1

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

  1. Subtract 7n on both sides:                    9 = n² - 7n + 1
  2. Subtract 9 on both sides:                      0 = n² - 7n - 8
  3. Factor quadratic:                                    0 = (n - 8)(n + 1)
  4. Solve roots:                                            n = -1, 8
4 0
2 years ago
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