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satela [25.4K]
3 years ago
10

What is the sum of 8 and a number?

Mathematics
2 answers:
Nastasia [14]3 years ago
6 0
Okay... so then it would be 8+n= the number
miskamm [114]3 years ago
5 0
" the sum " means add

the sum of 8 and a number...

8 + n <== ur expression
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For the function f(x) = x + 7, what is the ordered pair for the point on the graph when x = 2b. A. ( 2b, 2b+7). B. ( 2b, x + 7).
Fynjy0 [20]
f(2b)=2b+7\\\\&#10;(2b,2b+7)
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3 years ago
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1. The probability of telesales representative making a sale on a customer call is 0.15.
Mumz [18]

Answer:

1c

 n = 33

1d

 n = 19

Step-by-step explanation:

From the question we are told that

   The  probability of telesales representative making a sale on a customer call is  p = 0.15

     The mean is  \mu  =  5

Generally the distribution of sales call  made by a  telesales representative follows a binomial distribution  

i.e  

         X  \~ \ \ \  B(n , p)

and the probability distribution function for binomial  distribution is  

      P(X = x) =  ^{n}C_x *  p^x *  (1- p)^{n-x}

Here C stands for combination hence we are going to be making use of the combination function in our calculators  

Generally the mean is mathematically represented as

     \mu =  n*  p

=>  5= n *  0.15

=>  n = 33

Generally the least number of calls that need to be made by a representative for the  probability of at least 1 sale to exceed 0.95 is mathematically represented as

      P( X \ge 1) = 1 - P( X < 1 ) > 0.95

=>    P( X \ge 1) = 1 - P( X =0 ) > 0.95

=>    P( X \ge 1) = 1 - [ ^{n}C_0 *  (0.15 )^0 *  (1- 0.15)^{n-0}] > 0.95

=>    1 - [1  *  1*  (0.85)^{n}] > 0.95

=>    [(0.85)^{n}] > 0.05

taking natural  log of both sides

n = \frac{ln(0.05)}{ln(0.85)}

=>  n = 19

3 0
2 years ago
Lucas wants to put soil in his garden shown below. If soil comes in bags that fill 2 square yards each, how many bags of soil sh
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Answer:

3 bags

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8 0
3 years ago
Which of the following is the solution set of -21xl &lt;-8
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Answer:

x\:>\:4 or x\:

Step-by-step explanation:

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|x|\:>\:4

By the definition of the absolute value function;

Either x\:>\:4 or -x\:>\:4

Divide through the rightmost inequality by -1 and reverse the sign.

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3 0
3 years ago
1/2x+3y=4 for x when y=6
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Answer:

are you looking for the substiution

Step-by-step explanation:

4 0
3 years ago
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