1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Wewaii [24]
3 years ago
12

Two companies, A and B, drill wells in a rural area. Company A charges a flat fee of 3681 dollars to drill a well regardless of

its depth. Company B charges 1168 dollars plus 10 dollars per foot to drill a well. The depths of wells drilled in this area have a normal distribution with a mean of 260 feet and a standard deviation of 40 feet. Find the probability that Company B would charge more than Company A to drill a well.
Mathematics
1 answer:
jekas [21]3 years ago
3 0

Answer:

Mean costing =  $3,768

Step-by-step explanation:

Given:

Mean A(x) = 260

Rate = $10 per feet

Fixed charge = $1,168

Computation:

Assume;

depth = x ft

So,

Cost of company B = 10x + 1,168

So,

Mean costing = 10A(x) + 1,168

Mean costing =  10(260) + 1,168

Mean costing =  2,600 + 1,168

Mean costing =  $3,768

You might be interested in
150% of $22 (math test)
Rom4ik [11]

Answer:

6.8181818

Step-by-step explanation:

3 0
3 years ago
A news report says that 9% of middle school students are on the track team.
Ratling [72]

Answer:

54 students.

Step-by-step explanation:

If you have 600 and 9% the nearest rounding point is %10. %10 of 600 is 60, and 1% of 60 is 6, so 60-6=54.

3 0
3 years ago
X to the power of 3 - 7x + 6 factorise please whole step by step​
Over [174]

Answer:

(x     +  3)(x   -  2)(x - 1)

Step-by-step explanation:

{x}^{3}  - 7x + 6

Factor using Rational Root Theorem.

This means our possible roots are

positve or negative (1,2,3,6). If we try positve 1, it is indeed a root.

This means that

(x - 1)

is a root.

We can divide the top equation by the root (x-1). Our new equation is

( {x}^{2}   +  x - 6)

Now we can factor this completely

(x + 3)(x - 2)

So this equation in factored form is

(x  + 3)(x - 2)(x - 1)

8 0
3 years ago
A deep sea diver is 4.5m below the water level At what depth he is now ? At what height is he now
oee [108]

Answer:

Step-by-step explanation:

Below the sea level should be mentioned by negative value

So, It is  =  - 4.5

7 0
3 years ago
¿Cuál es el área de la figura de abajo?<br> 10 cm por 4cm
AVprozaik [17]

Answer:

40 cm

Step-by-step explanation:

10x4= 40

4 0
3 years ago
Read 2 more answers
Other questions:
  • What expessions are equivalent to 2(25)
    14·1 answer
  • There were 14 people at home. Ten people were watching a football game. Four people were playing a board game. Eight people left
    5·2 answers
  • Someone please help me..
    6·1 answer
  • Simplify <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7Bx-6%7D%20%2B%20%20%5Cfrac%7B3%7D%7Bx%2B5%7D%20" id="TexFormula1"
    9·2 answers
  • I NEED HELP ON THIS ASAP!! GIVING 75 POINTS TO WHOEVER CAN HELP ME WITH THIS!!!
    5·1 answer
  • You spent 2 hours on homework yesterday. Today you spend 4 hours. What is the percent of increase?
    7·1 answer
  • Degree and Radian Measures
    14·1 answer
  • How many minutes does it take the duck to fly 1 kilometer?
    10·1 answer
  • X=2y-1 solve this equation<br> 3x+y=11
    15·1 answer
  • Please help me <br> thanks
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!