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
Aleksandr [31]
2 years ago
6

Please solve and show your work

Mathematics
1 answer:
ella [17]2 years ago
7 0

hope it helps i didnt do the 6, 7 and 8 btw because i dont have scape in my paper

You might be interested in
Work out the length of CD <br> Answer to 3 significant figures
vladimir1956 [14]

Answer:

26

Step-by-step explanation:

I can  be wrong but i most likely sure it is correct because a triangle is 180 degrees you have to add 102 with 52 take that total and subtract it with 180 to find that angle is what you need to find the length. Again i am not sure but might be right.

5 0
3 years ago
Read 2 more answers
For every 5 hours he works Andrew gets paid $60.20. How much is Andrew paid per hour
Varvara68 [4.7K]
Andrew gets paid $12.05 cents per hour
6 0
3 years ago
Read 2 more answers
Find the Fourier series of f on the given interval. f(x) = 1, ?7 &lt; x &lt; 0 1 + x, 0 ? x &lt; 7
Zolol [24]
f(x)=\begin{cases}1&\text{for }-7

The Fourier series expansion of f(x) is given by

\dfrac{a_0}2+\displaystyle\sum_{n\ge1}a_n\cos\frac{n\pi x}7+\sum_{n\ge1}b_n\sin\frac{n\pi x}7

where we have

a_0=\displaystyle\frac17\int_{-7}^7f(x)\,\mathrm dx
a_0=\displaystyle\frac17\left(\int_{-7}^0\mathrm dx+\int_0^7(1+x)\,\mathrm dx\right)
a_0=\dfrac{7+\frac{63}2}7=\dfrac{11}2

The coefficients of the cosine series are

a_n=\displaystyle\frac17\int_{-7}^7f(x)\cos\dfrac{n\pi x}7\,\mathrm dx
a_n=\displaystyle\frac17\left(\int_{-7}^0\cos\frac{n\pi x}7\,\mathrm dx+\int_0^7(1+x)\cos\frac{n\pi x}7\,\mathrm dx\right)
a_n=\dfrac{9\sin n\pi}{n\pi}+\dfrac{7\cos n\pi-7}{n^2\pi^2}
a_n=\dfrac{7(-1)^n-7}{n^2\pi^2}

When n is even, the numerator vanishes, so we consider odd n, i.e. n=2k-1 for k\in\mathbb N, leaving us with

a_n=a_{2k-1}=\dfrac{7(-1)-7}{(2k-1)^2\pi^2}=-\dfrac{14}{(2k-1)^2\pi^2}

Meanwhile, the coefficients of the sine series are given by

b_n=\displaystyle\frac17\int_{-7}^7f(x)\sin\dfrac{n\pi x}7\,\mathrm dx
b_n=\displaystyle\frac17\left(\int_{-7}^0\sin\dfrac{n\pi x}7\,\mathrm dx+\int_0^7(1+x)\sin\dfrac{n\pi x}7\,\mathrm dx\right)
b_n=-\dfrac{7\cos n\pi}{n\pi}+\dfrac{7\sin n\pi}{n^2\pi^2}
b_n=\dfrac{7(-1)^{n+1}}{n\pi}

So the Fourier series expansion for f(x) is

f(x)\sim\dfrac{11}4-\dfrac{14}{\pi^2}\displaystyle\sum_{n\ge1}\frac1{(2n-1)^2}\cos\frac{(2n-1)\pi x}7+\frac7\pi\sum_{n\ge1}\frac{(-1)^{n+1}}n\sin\frac{n\pi x}7
3 0
3 years ago
Write a function rule that represents the situation.
Dafna1 [17]
The function would be:
6.95 + (0.75*t) = p
3 0
3 years ago
What is 49×84÷5×6+26​
lions [1.4K]
This is the answer 4,965.2
3 0
3 years ago
Read 2 more answers
Other questions:
  • The rest of the numbers are cut offf<br><br> 225<br> 250<br> 270
    11·1 answer
  • If you construct a line perpendicular to Line A given by y=22 through S(1,5) not on the line y =22 find the distance from s to l
    9·2 answers
  • If g(x) = f(4x), which statement is true?
    10·1 answer
  • Solve the system of equations.<br> 2y - 3x = -27<br> 5y + 3x = 6<br> What is the x ?
    10·1 answer
  • Two numbers have difference of 0.7 and a sum of 1. What are the numbers?
    6·1 answer
  • What’s the correct answer for this?
    6·1 answer
  • 9. Fill in the blanks
    7·1 answer
  • If you were moving at 14mph for 8 miles, how long would it take you to travel the 8 miles?
    14·1 answer
  • 16) You have two summer jobs. At one job you work
    8·1 answer
  • Milk is on sale for 40% off when it is normally $3.75 per gallon. How much will a gallon of milk cost?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!