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Marina86 [1]
3 years ago
12

A test has 20 questions What percent I get if answered 17 questions correct.

Mathematics
2 answers:
Pie3 years ago
8 0
85% so who ever the person is got a good grade
bazaltina [42]3 years ago
4 0
Number of answer right divided by total number of questions:

17/20 = 85%

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Given f(x) = 3x + 1, solve for x when f(x) = 7.
irakobra [83]

Answer:

f(7) = 22 or x =2

Step-by-step explanation:

  1. f(x) = 3x + 1
  2. f(7) = 3(7) + 1
  3. f(7) = 21 + 1
  4. f(7) = 22

<u>Or if the equation meant it like this:</u>

  1. f(x) = 3x + 1
  2. 7 = 3x + 1
  3. 6 = 3x
  4. 2 = x
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What are the domain restrictions of the function f(x) = the quantity of x squared plus 6x plus 9, all over 3x plus 15.
dangina [55]

Answer:

x = - 5

Step-by-step explanation:

Given

f(x) = \frac{x^2+6x+9}{3x+15}

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solve : 3x + 15 = 0 ⇒ 3x = - 15 ⇒ x = - 5 ← excluded value

Domain x ∈ R , x ≠ - 5

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A new one-year membership at Silver Fitness Center costs $300. $30 of the $300 is paid up front as a registration fee and the re
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$22.50

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First, you subtract 30 from 300 which is 270, then you divide 270 by 12 because there is 12 months in a year, and then you get 22.50 per month.

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