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
weqwewe [10]
3 years ago
15

Use a calculator to evaluate cot π/5.

Mathematics
1 answer:
bixtya [17]3 years ago
7 0
Pi divided by five is roughly .63. I say "roughly" because pi is infinitely long so it's impossible to get an exact answer, but a common pi length would be  <span>3.14159. </span>
You might be interested in
Given that curl F = 2yi – 2zj + 3k, find the surface integral of the normal component of curl F (not F) over (a) the open hemisp
Dimas [21]

Use Stokes' theorem for both parts, which equates the surface integral of the curl to the line integral along the surface's boundary.

a. The boundary of the hemisphere is the circle x^2+y^2=9 in the plane z=0, where the curl is \mathrm{curl}\vec F=2y\,\vec\imath+3\,\vec k. Green's theorem applies here, so that

\displaystyle\iint_S\mathrm{curl}\vec F\cdot\mathrm d\vec S=\int_{\partial S}\vec F\cdot\mathrm d\vec r=3\int_{x^2+y^2=9}\mathrm d\vec r

which means the value of the line integral is 3 times the area of the circle, or 27\pi.

b. The closed sphere has no boundary, so by Stokes' theorem the integral is 0.

7 0
3 years ago
Percent notation what is the meaning
mario62 [17]

Answer:

In mathematics, a percentage (from Latin per centum "by a hundred") is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", or the abbreviations "pct.", "pct"; sometimes the abbreviation "pc" is also used. A percentage is a dimensionless number (pure number).

Step-by-step explanation:

7 0
3 years ago
The points (-2,4), (0,8), (1,10), and (3,14) are on a line. Which of the following statements are true?
irakobra [83]

Answer: y = 2x+8

Check out this graph I supplied you with!

5 0
3 years ago
Please please help me again, I really need help and thank you.
ipn [44]

Answer:

Perimeter of Compound Shapes: Composite Rectangles. Perimeter is the total distance around the outside of a shape. horizontal. sides must be the same length in total as the one longer red side.

Step-by-step explanation:Also not sure...Hope this kinda helps...

5 0
3 years ago
The population of Henderson City was 3,381,000 in 1994, and is growing at an annual rate 1.8%
liq [111]
<h2>In the year 2000, population will be 3,762,979 approximately. Population will double by the year 2033.</h2>

Step-by-step explanation:

   Given that the population grows every year at the same rate( 1.8% ), we can model the population similar to a compound Interest problem.

   From 1994, every subsequent year the new population is obtained by multiplying the previous years' population by \frac{100+1.8}{100} = \frac{101.8}{100}.

   So, the population in the year t can be given by P(t)=3,381,000\textrm{x}(\frac{101.8}{100})^{(t-1994)}

   Population in the year 2000 = 3,381,000\textrm{x}(\frac{101.8}{100})^{6}=3,762,979.38

Population in year 2000 = 3,762,979

   Let us assume population doubles by year y.

2\textrm{x}(3,381,000)=(3,381,000)\textrm{x}(\frac{101.8}{100})^{(y-1994)}

log_{10}2=(y-1994)log_{10}(\frac{101.8}{100})

y-1994=\frac{log_{10}2}{log_{10}1.018}=38.8537

y≈2033

∴ By 2033, the population doubles.

4 0
3 years ago
Other questions:
  • 1 point) the solution of a certain differential equation is of the form y(t)=aexp(3t)+bexp(4t), y ( t ) = a exp ⁡ ( 3 t ) + b ex
    12·1 answer
  • Help please i’ll give brainliest
    12·1 answer
  • Drew’s work crew put up 45 sections of fencing in a park. Each section was 6 feet long. How many feet of fencing did Drew’s crew
    8·1 answer
  • The measure of an angle is 51°. What is the measure of its supplementary angle?
    15·1 answer
  • A seamstress used 4 meters of ribbon to make 20 bows. She used __ of a meter for each bow.
    11·1 answer
  • Translate the sentence into an equation.
    15·1 answer
  • Do not give me any links or files.
    6·1 answer
  • I will give you a brainliest if you answer this question 16
    6·2 answers
  • Ill be on my way to success once Katie stops deleting my questions
    6·2 answers
  • Sin(x+ pi/6)- sin(x-pi/6)= 1/2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!