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Mice21 [21]
3 years ago
9

Need help please I don’t understand this question

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
5 0

Answer:

a) 9

Step-by-step explanation:

f(2) basically equals to y when x=2 and the y coordinate at x=2 is 9

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Whole numbers are _____ integers. . . . .A. always. B. sometimes. C. never
guapka [62]

Whole numbers are sometimes integers.

\boxed{ \ The \ Answer \ is \ B \ }

<h3>Further explanation</h3>
  • The set of natural numbers (also called the set of counting numbers) is denoted by N:  \boxed{ \ N = \{1, 2, 3, ...\} \ }.
  • Natural numbers together with zero called are called whole numbers. The set of whole numbers is denoted by W: \boxed{ \ W = \{0, 1, 2, 3, ... \} \ }.
  • The set of natural numbers are not enough for all the number problems in everyday life. For example, natural numbers cannot be used to write some winter temperatures, since such temperatures may be less than zero i.e., negative numbers.
  • The set of integers are the union of the set of negative numbers with the set of natural numbers  and zero. The set of integers is denoted by Z:  \boxed{ \ Z = \{..., -3, -2, -1, 0, 1, 2, 3, ... \} \ }.
  • The set of negative integers is denoted by Z⁻: \boxed{ \ Z^- = \{ ..., -3, -2, -1 \} \ }.
  • The set of positive integers is denoted by Z⁺: \boxed{ \ Z^+ = \{1, 2, 3, ... \} \ }.
  • The set of non-negative integers are the set of all positive integers together with zero.
  • The set of non-positive integers are the set of all negative integers together with zero.

Conclusion:

Whole numbers are sometimes integers because negative integers are not part of whole numbers. In other words, whole numbers are not fully integers.

----------------------------------

Examples of integers around us:

  • The height of an airplane flight typically between 31,000 and 38,000 feet.
  • Ice melts at 0⁰C.
  • This diver is swimming at -20 m.
<h3>Learn more</h3>
  1. 9 ten thousand divided by 10 in unit form brainly.com/question/4786449
  2. What represents the simplified form of an expression: 5(14 - 2)² ÷ 2 brainly.com/question/1602237
  3. Explanations and an example of a question about the four types of number form brainly.com/question/4725342

Keywords: whole numbers are sometimes integers, always, never, natural, counting, zero, negative integers, positive, the set

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4 years ago
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3. An artist is creating a sculpture from clay. He starts with clay in the shape of a sphere with a radius of 3 inches.
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Answer:

Step-by-step explanation:

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3 years ago
Factor the expression 8a + 16c
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The answer for this question is 80
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3 years ago
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2x^16-32x^4 what is the completely factored form
marysya [2.9K]

Answer:

B

Step-by-step explanation:

~~~2x^{16} - 32x^4\\\\ = 2x^4(x^{12} -16)\\\\=2x^4\left[(x^6)^2 - 4^2 \right]\\\\=2x^4(x^6 -4)(x^6 +4)~~~~~~~~~~~~~~~~~~;[a^2 -b^2 = (a+b)(a-b)]\\\\=2x^4\left[(x^3)^2 - 2^2\right] (x^6 +4)\\\\=2x^4(x^3 -2)(x^3 +2)(x^6 +4)

4 0
2 years ago
The times to process orders at the service counter of a pharmacy are exponentially distributed with mean 1 0 minutes. If 100 cus
g100num [7]

Answer:

Therefore,  the probability that at least half of them need to wait more than 10 minutes is <em>0.0031</em>.

Step-by-step explanation:

The formula for the probability of an exponential distribution is:

P(x < b) = 1 - e^(b/3)

Using the complement rule, we can determine the probability of a customer having to wait more than 10 minutes, by:

p = P(x > 10)

  = 1 - P(x < 10)

  = 1 - (1 - e^(-10/10) )

  = e⁻¹

  = 0.3679

The z-score is the difference in sample size and the population mean, divided by the standard deviation:

z = (p' - p) / √[p(1 - p) / n]

  = (0.5 - 0.3679) / √[0.3679(1 - 0.3679) / 100)]

  = 2.7393

Therefore, using the probability table, you find that the corresponding probability is:

P(p' ≥ 0.5) = P(z > 2.7393)

<em>P(p' ≥ 0.5) = 0.0031</em>

<em></em>

Therefore,  the probability that at least half of them need to wait more than 10 minutes is <em>0.0031</em>.

8 0
3 years ago
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