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tatyana61 [14]
2 years ago
12

Plss help i beg you!​

Mathematics
1 answer:
frosja888 [35]2 years ago
7 0

Answer:

  • 51

Step-by-step explanation:

<u>Given expression:</u>

  • 3(x + y) +2x² + (1 + y)²

<u>Find its value when x = 4 and y = 1, substitute:</u>

  • 3(4 + 1) + 2*4² + (1 + 1)² =
  • 3*5 + 2*16 + 2² =
  • 15 + 32 + 4 =
  • 51
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Answer:

  1. <u>Quantitative.</u>
  2. <u>Discrete.</u>
  3. <u>Interval Scale.</u>

Step-by-step explanation:

  1. The IQ scores are measured numerically. This makes it quantitative data. Quantitative data provide numerical measures which can be used to perform arithmetric operations such as addition, subtraction, multiplication and division. Results from these kind of data can be used to provide meaningful and explanatory results to certain phenomena.
  2. IQ scores are discrete because they are always expressed as integers. that is in whole numbers and not in fractions e.g 100, 120, 60.
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According to the table below, what is the probability that a student chosen at random will be 16 or older?
galben [10]

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2 years ago
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Prove that can you please prove and explain it plz ​
Alexandra [31]

Answer:

Step-by-step explanation:

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        = Sin² ∅ [1 + tan² ∅ ]                 {Sec² ∅ - tan² ∅  = 1}

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If f(x) = 2x² - 6x + 8, find f(a - 2).
yan [13]

Answer: f(a-2) = 2a² - 14a + 28

Step-by-step explanation:

f(x) = 2x² - 6x + 8

you can take a-2 and substitute it for each x, which would look like this:

f(a-2) = 2(a-2)² - 6(a-2) + 8

then distribute those in ( )

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combine like terms

f(a-2) = 2a² - 14a + 28

7 0
2 years ago
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