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aniked [119]
1 year ago
12

1.a telephone company is asked to provide service to a customer whose house is located in the forest, 900 feet away from the roa

d along which the phone lines run. the nearest telephone box is located 4,200 feet down the road. the cost to install the phone line is $20per foot along the road and $35 per foot away from the road (through he forest).
Mathematics
1 answer:
adelina 88 [10]1 year ago
3 0

In total, the cost to install the phone line for the customer in the forest will be $31,500+$84,000=$115,500.

<h3>What is meant by addition?</h3>

Combining two or more numbers or quantities to generate a sum is known as addition in mathematics. One of the four fundamental operations of arithmetic, along with addition, subtraction, multiplication, and division, it is often denoted by the sign "+."

Addition is a key concept that is taught to children at an early age and is utilised in a number of everyday settings such as shopping and banking. It is a crucial tool for tackling increasingly difficult issues in disciplines like engineering, physics, and finance. For example, a telephone company is asked to provide service to a customer whose house is located in the forest, 900 feet away from the road along

Mental computation, pencil and paper, and calculators are only a few of the techniques that may be used to do addition. First, arrange the digits in columns, starting with the ones place, before adding two numbers.

How to solve?

To provide service to the customer in the forest, the telephone company will have to run a phone line 900 feet through the forest at a cost of $35 per foot, for a total cost of 900*$35=$31,500.

Additionally, the company will have to run the line 4,200 feet down the road at a cost of $20 per foot, for a total cost of 4,200*$20=$84,000.

In total, the cost to install the phone line for the customer in the forest will be $31,500+$84,000=$115,500.

To learn more about addition, visit:

brainly.com/question/16296450

#SPJ4

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A random sample of 7 fields of durum wheat has a mean yield of 29.8 bushels per acre and standard deviation of 3.62 bushels per
meriva

Answer:

CI = 29.8 ± 3.53

Critical value is z = 2.58

Step-by-step explanation:

First of all let's find margin of error. It is given by the formula;

ME = zσ/√n

We are given;

Standard deviation; σ = 3.62

Sample size; n = 7

Mean; x¯ = 29.8

Now, z-value for 99% Confidence level is 2.58

Thus;

ME = (2.58 × 3.62)/√7

ME = 3.53

CI is written as;

CI = x¯ ± ME

CI = 29.8 ± 3.53

Critical value is z = 2.58

5 0
3 years ago
write the equation of the line that is perpendicular to the line y=-1/5x+9 and passes through the point (-2,-2)
OLEGan [10]

Answer:y=5x+8

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4 0
4 years ago
A team has 3 wins for every loss they loss games how many did they win??
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Given the acceleration, initial velocity, and initial position of a body moving along a coordinate line at time t, find the body
nika2105 [10]

Answer:

The  position at time t  is  s(t) = 8t^2 -  14t   -8

Step-by-step explanation:

From the question we are told that

   The acceleration is  a =  16

   The velocity at t = 0  is  v(0) =  -14

    The  position at time t =  0  is s(0) =  -8

Generally acceleration is mathematically represented as

     a(t) =  \frac{d v}{dt }

=>   \frac{dv}{dt}  =  16

=>   dv  =  16 dt

integrating both sides we have    

     \int\limits dv  =  \int\limits16 dt

=>  v(t)  =  16 t  + c

Now at t = 0  

     v(0) =  16 * 0 +c  =  -14

=>  c =  -14

So

   v(t)  =  16 t  -14

Generally the position of the body is mathematically represented as

     s(t) =  \int\limits v(t)dt

So

    s(t) =  \int\limits 16t -  14  dt

So  

    s(t) = 16 \frac{t^2}{2} -  14t  + C

Now  at t =  0

     s(0) = 16 \frac{0^2}{2} -  14(0)  + C =  -8

=>    C =  -8

So

   s(t) = 8t^2 -  14t   -8

5 0
3 years ago
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