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
Gelneren [198K]
3 years ago
6

UESTION 2 120 MARKS Underground cable breakdown often occur due to the unpredictable deterioration rate of the cable insulation.

Cable replacement can be very costly without regular mainte A 9-month study on an underground cable insulation had been conducted to check for the length of the cable insulation that have been deteriorated using fluorescence microscope in order to estimate the maintenance cycle. Table 1 shows the data measured every 3 months during the study Table 1 Time, t (month) Deteriorated cable insulation length, I 1.35 3.72 7.28 15.45 (a) Generate a third order polynomial using Newton's interpolation method to describe the variable of the deteriorated cable insulation length, (t) with respect to time (in month). Write the polynomial in the form of At3BtCt D, where [10 marks] A, B, C and D are constants. (b) According to regulation, the cable insulation requires replacement if it is degraded by 6 mm. Calculate the replacement time using Newton Raphson method with initial guess of 6 months from the polynomial generated in part (a). Perform THREE iterations only and calculate true percent relative error for the final iteration answer [10 marks if the true value of the replacement time is 5 months.
Mathematics
1 answer:
ANEK [815]3 years ago
4 0
Listen to tame impala that’s that’s the answerb
You might be interested in
in the afternoon the temperature was 52°F. A strong arctic cold front caused the temperature to drop 38 degrees in 4 3/4 hours.
Anvisha [2.4K]

Answer: 32 2/19°

Step-by-step explanation:

The decrease in temperature per hour will be calculated thus:

= (52 - 38) / 4¾

= 14°/4¾

= 2 18/19° per hour.

If the temperature continues to drop at the same rate, then the temperature after 2 hours will be:

= 38° - (2 18/19 × 2 hours)

= 38° - 5 17/19°

= 32 2/19°

Therefore, the temperature after 2 hours will be 32 2/19°.

8 0
3 years ago
rice that costs $480 which is for 8 members is used 20 days. What is the cost of rice which is required for 12 members for 15 da
Ber [7]

Answer:

$540

Step-by-step explanation:

1 member 1 day :$480/80/20 = $3

12 members 15 day = $3 * 12 * 15 = $540

Hope this helps!!!

5 0
3 years ago
Marte posted a story on her blog on the stay there were 80 responses and on the second day there were 180
Anastasy [175]

Answer:

D. 125%

Step-by-step explanation:

First day = 80 responses

Second day = 180 responses

Increase in responses = 180 - 80

= 100 responses

what percent is the increase 100 of the original number of responses 80

= Increase in responses / original number of responses × 100

= 100/80 × 100

= 1.25 × 100

= 125%

The percent increase 100 of the original number of responses 80 = 125%

8 0
3 years ago
Which algebraic rule describes the translation of ΔDEF to ΔD'E'F'?
fomenos
C is the answer. C is +6 and y is -2
3 0
3 years ago
Maya is solving the quadratic equation by completing the square.
kvasek [131]

Step-by-step explanation:

factor 4 out of the variable terms, as this helps.

but my approach is simply to define the target and then calculate "backwards".

we want to find

(ax + b)² = a²x² + 2abx + b²

and now we compare with the original equation :

a²x² = 4x²

a² = 4

a = 2

2abx = 16x

2×2×bx = 16x

4b = 16

b = 4

b² = 16, but we have only 3, so we need to subtract 16-3 = 13 from the completed square.

so, our equation is

(2x + 4)² - 13 = 0

(2x + 4)² = 13

2x + 4 = sqrt(13)

2x = sqrt(13) - 4

x = sqrt(13)/2 - 2

6 0
2 years ago
Other questions:
  • Plz help me I have to simplify and that's is harddd
    13·1 answer
  • What is the square root of 95.54
    13·1 answer
  • I have a math problems that need to be solved, please help me :)
    13·1 answer
  • What is 43-12+12x13?
    13·2 answers
  • Simplify: cot(θ)sin(θ)
    12·1 answer
  • If u study 12 mins which equals 40% how many more mins must i study to get 100%
    11·1 answer
  • Bir a saati 3 saatte üç üzeri 4 defa çalıp sonrasında 1 saat hiç çalmıyor. B saati 2 saatte 2 üzeri 5 defa çalıp sonrasnda 1 saa
    6·1 answer
  • -2 (4d - 7) mathmatecis
    5·2 answers
  • (u)4 multiple please help
    9·1 answer
  • Help pleasee <br><br> find the point slope form<br><br> find the slope intercept form
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!