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Blababa [14]
2 years ago
8

PLEASE HELP!

Mathematics
2 answers:
Murljashka [212]2 years ago
6 0

Answer: i think its b

Step-by-step explanation:

Reil [10]2 years ago
5 0

Answer is B

Step-by-step explanation:

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Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that t
blondinia [14]

Answer: Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

\text{Mean}=np\\\\\text{Variance}=np(1-p)

Given : The total number of enter a clothing store : n=7

The probability of a customer making a purchase= 0.75

Now,

\text{Mean}=7(0.75)=5.25\\\\\text{Variance}=7(0.75)(0.25)=1.3125\\\\\Rightarrow\ \text{Standard deviation}=\sqrt{1.3125}=1.14564392374\approx1.1456

3 0
3 years ago
Solve the expression 3a+5 when a=6
Svetllana [295]

Answer:

23

Step-by-step explanation:

3a+5

3(6)+5

18+5

23

8 0
2 years ago
Read 2 more answers
3x+5(2+x)=4x-7 help me out here?
Oksi-84 [34.3K]

Answer:

x = -17/4

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

Distributive Property

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

3x + 5(2 + x) = 4x - 7

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

  1. [Distributive Property] Distribute 5:                                                                 3x + 10 + 5x = 4x - 7
  2. [Addition] Combine like terms:                                                                        8x + 10 = 4x - 7
  3. [Subtraction Property of Equality] Subtract 4x on both sides:                      4x + 10 = -7
  4. [Subtraction Property of Equality] Subtract 10 on both sides:                       4x = -17
  5. [Division Property of Equality] Divide 4 on both sides:                                  x = -17/4
6 0
3 years ago
Read 2 more answers
What is 120 degrees radians
jek_recluse [69]

Answer:

A 120 degrees in radians=2.0944

Hope this helps.

7 0
2 years ago
I need help with this assignment help
saw5 [17]

Table:

4 cups of water, 5 cups of flour.

9 cups of water, 10 cups of flour.

16 cups of water, 17 cups of flour.

29 cups of water, 30 cups of flour.

Equation:

f-1=w

Independent variable:

F

Dependent variable:

W

4 0
2 years ago
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