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hammer [34]
4 years ago
14

Which ordered pairs are solutions to the inequality x+3y≥−8?

Mathematics
1 answer:
Dima020 [189]4 years ago
6 0
I think the answer would be b
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A statistics professor receives an average of five e-mail messages per day from students. Assume the number of messages approxim
kaheart [24]

Answer:

The probability that on a randomly selected day the statistics professor will have five messages is 0.1755.

Step-by-step explanation:

Let the random variable <em>X</em> represent the number of e-mail messages per day a statistics professor receives from students.

The random variable is approximated by the Poisson Distribution with parameter <em>λ</em> = 5.

The probability mass function of <em>X</em> is as follows:

P(X=x)=\frac{e^{-5}\cdot 5^{x}}{x!};\ x=0,1,2,3...

Compute the probability that on a randomly selected day she will have five messages as follows:

P(X=5)=\frac{e^{-5}\cdot 5^{5}}{5!}

               =\frac{0.006738\times 3125}{120}\\\\=0.17546875\\\\\approx 0.1755

Thus, the probability that on a randomly selected day the statistics professor will have five messages is 0.1755.

7 0
4 years ago
Can someone help me with some questions please for brainless and points​
Kipish [7]

Answer:189

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Let f(x)=3x2+2x−3. What is f(3)?
Annette [7]

Answer:

f(3) = 30

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

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x² + 2x - 3

f(3) is x = 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    f(3) = 3(3)² + 2(3) - 3
  2. Exponents:                          f(3) = 3(9) + 2(3) - 3
  3. Multiply:                               f(3) = 27 + 6 - 3
  4. Add:                                     f(3) = 33 - 3
  5. Subtract:                              f(3) = 30
4 0
3 years ago
Los ingresos de una familia son el sueldo del padre de $ 560.400 y el aporte del hijo mayor de $280.600. El 34% de estos ingreso
Helen [10]

Answer:

ITS SPANISH ENGLSIH PLEZ

Step-by-step explanation:

3 0
3 years ago
A rectangular playground is 65m long and 30 m wide. A pathway of 1.5 m width goes all around, outside it. Find the area of the p
BabaBlast [244]

Answer:

97.5 m^2

Step-by-step explanation:

Given data

Length = 65m

Width= 30m

We are told that the width of the path= 1.5m

Hence the area of the path is

=65*1.5

=97.5 m^2

4 0
3 years ago
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