answer.
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
Ipatiy
1 day ago
13

A hollow cylindrical iron pipe with external and internal radii 8cm and 6cm respectively and length 35cm is melted and recast in

to a solid wure of thickness 2.8cm find the length of wire
Mathematics
You might be interested in
A company buys pens at the rate of $7.50 per box for the first 10 boxes, $5.50 per box for the next 10 boxes, and $4.50 per box
tester [12383]

Let's start by calculating the cost of the first 10 boxes, which totals $75, and the next 10 boxes cost $55.

Together, these 20 boxes amount to $130 spent. With $18 remaining, you can purchase 4 more boxes since 18 divided by 4.5 equals 4.

Therefore, the maximum number of boxes you can buy with $148 is 24.

4 0
4 months ago
You have a job as a teacher. Your salary for the first year is $37,185.
tester [12383]
a) This represents a geometric sequence. b) c) The salary at the beginning of the fifth year will be $46,945.21. To clarify, my starting salary is $37,185. Should I receive a 6% raise each year, the salary for the following year will be: $37,185 x 1.06 = $39,416.10. Consequently, the salary after the second year will be: $39,416.10 x 1.06 = $41,781.07. Hence, the salary sequence will look like: $37,185, $39,416.10, $41,781.07, and so forth, demonstrating a consistent ratio of r = 1.06 for each term.
5 0
3 months ago
An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation of all
Leona [12618]

Answer:

n=(\frac{0.539(2.2)}{0.3})^2 =15.62 \approx 16

In this scenario, the solution for n is determined to be 16 when rounded up to the closest integer

Step-by-step explanation:

The following information has been provided for this case:

\sigma = 2.2 symbolizes the population standard deviation

Confidence =0.8

ME = 0.3 signifies the preferred margin of error

The formula for the margin of error of the actual mean is given as:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

In this case, the margin of error (ME) is 0.03, and to find n, we rearrange equation (a) to get:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

With a confidence level of 80%, and the significance level being \alpha=0.2 and \alpha/2 =0.1, the critical value is z_{\alpha/2}=0.539. Plugging in these values into formula (b) results in:

n=(\frac{0.539(2.2)}{0.3})^2 =15.62 \approx 16

Thus, the solution for this situation results in n=16, rounded to the nearest whole number

5 0
2 months ago
Other questions:
  • Which statement is true about the equations –3x + 4y = 12 and x – y = 1? The system of the equations has exactly one solution at
    15·1 answer
  • The amount of garbage, G, in tons per week, produced by a city with population p, measured in thousands of people, is given by G
    10·1 answer
  • jack and kevin play in a basketball game if thr ratio of point scsred by jack to points scored by kevin is 4 to 3 which of the f
    5·1 answer
  • To get the best deal on a microwave oven, Jeremy called six appliance stores and asked the cost of a specific model. The prices
    11·1 answer
  • Question 1
    10·1 answer
  • Identify the number as real, complex, pure imaginary, or nonreal complex. (More than one of these descriptions may apply.) 3+i ​
    10·1 answer
  • Suppose 123 people voted for Danny. If 55 of the votes were from girls, what would be the ratio of votes from girls to votes fro
    14·2 answers
  • For each 12 mm of coloured fabric Sarah uses to make her curtains, she also uses 2 cm of white fabric. Express the amount of whi
    9·1 answer
  • Consider the following hypothesis: "There is no relationship between income and amount of money spent on food." If the hypothesi
    11·1 answer
  • Austin is using a funnel shown to fill a glass bottle with colored sand Estimate the volume of the funnel number 21 please
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!