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stira [4]
2 years ago
12

If street lights are placed at most 145

Mathematics
1 answer:
Paraphin [41]2 years ago
7 0

Answer:

Step-by-step explanation:

d=4 miles=4×1760 yards=7040 yards=7040×3 ft

number of lights=21120 ft

number of lights=21120/145 +1≈145.7+1=146+1=147 lights

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A and B are partner in a business .A contribution RS 20000 and B rs 30000 a however acts as a manager the understanding being th
Vesna [10]

Answer:

Rs 1,650

Step-by-step explanation:

The given contribution are;

<em>A</em> contributes Rs 20,000, and <em>B</em> contributes Rs 30,000

The percentage of the profit <em>A</em> receives as manager = 25%

The amount of the profit divided in the ratio of their contribution = The remaining profit (75%)

The amount <em>B</em> gets = Rs1,350

The amount <em>A</em> gets = required

The ratio of their contribution at which the remaining profit is shared = 20,000:30,000 = 2:3

Where, out of 5 parts of 75% of the profits, <em>B</em> gets 3, while <em>A</em> gets 2

Let <em>P</em> represent the profit, we have;

B's share = 3/5× 0.75 × P = 1,350

∴ P = (5 × 1,350/3)/0.75 = 3,000

<em>A</em> gets 25% of the profits and 2/5 of the 75% remaining profit

∴ The amount <em>A</em> gets = 0.25×3000 + (2/5)×0.75×3000 = 1,650

Or simply put;

<em>A</em> gets the remainder of the profit which is Rs 3,000 - Rs 1,350 = Rs 1,650

8 0
2 years ago
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adell [148]
Here's how to figure out this problem: add up all the numbers in the mark category and divide by the # of numbers there are.

So....

6 + 7 + 8 + 9 + 10 ÷ 5 = 8

8 is your final answer.
4 0
3 years ago
Express (x+1)^2<br><br> as a trinomial in standard form.
marin [14]

Answer:

x^2(squared) +2x+1

Step-by-step explanation:

6 0
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
The freezing temperature of nitrogen is -210°C, and the freezing temperature of oxygen is -223°C. Which temperature is colder?
olasank [31]

Answer:

-223

Step-by-step explanation:

-210<-223

4 0
2 years ago
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