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
Rufina [12.5K]
2 years ago
5

Write a cosine function that has a midline of 3, an amplitude of 4 and a period of pi.

Mathematics
1 answer:
Artist 52 [7]2 years ago
8 0

Step-by-step explanation:

<h2><em><u>Thank</u></em><em><u> you</u></em></h2><h2><em><u>t</u></em><em><u>his </u></em><em><u>is </u></em><em><u>your</u></em><em><u> </u></em><em><u>answer.</u></em></h2><h2><em><u>mark </u></em><em><u>Brainlist</u></em><em><u> </u></em><em><u>please</u></em></h2>

You might be interested in
Hiking
Nata [24]

Answer:

I’m sorry but I don’t understand the question

Step-by-step explanation:

3 0
2 years ago
Is due today Help!!! Algebra ll
guapka [62]

-7x-9y=-8

5x+6y=4

-35x-45y=-40

35x+42y=28

-3y=-12

y=4

5x+6(4)=4

5x+24=4

5x=-20

x=-4

(-4,4)

Hope this helps.

頑張って!

7 0
3 years ago
Calculus Problem
Roman55 [17]

The two parabolas intersect for

8-x^2 = x^2 \implies 2x^2 = 8 \implies x^2 = 4 \implies x=\pm2

and so the base of each solid is the set

B = \left\{(x,y) \,:\, -2\le x\le2 \text{ and } x^2 \le y \le 8-x^2\right\}

The side length of each cross section that coincides with B is equal to the vertical distance between the two parabolas, |x^2-(8-x^2)| = 2|x^2-4|. But since -2 ≤ x ≤ 2, this reduces to 2(x^2-4).

a. Square cross sections will contribute a volume of

\left(2(x^2-4)\right)^2 \, \Delta x = 4(x^2-4)^2 \, \Delta x

where ∆x is the thickness of the section. Then the volume would be

\displaystyle \int_{-2}^2 4(x^2-4)^2 \, dx = 8 \int_0^2 (x^2-4)^2 \, dx \\\\ = 8 \int_0^2 (x^4-8x^2+16) \, dx \\\\ = 8 \left(\frac{2^5}5 - \frac{8\times2^3}3 + 16\times2\right) = \boxed{\frac{2048}{15}}

where we take advantage of symmetry in the first line.

b. For a semicircle, the side length we found earlier corresponds to diameter. Each semicircular cross section will contribute a volume of

\dfrac\pi8 \left(2(x^2-4)\right)^2 \, \Delta x = \dfrac\pi2 (x^2-4)^2 \, \Delta x

We end up with the same integral as before except for the leading constant:

\displaystyle \int_{-2}^2 \frac\pi2 (x^2-4)^2 \, dx = \pi \int_0^2 (x^2-4)^2 \, dx

Using the result of part (a), the volume is

\displaystyle \frac\pi8 \times 8 \int_0^2 (x^2-4)^2 \, dx = \boxed{\frac{256\pi}{15}}}

c. An equilateral triangle with side length s has area √3/4 s², hence the volume of a given section is

\dfrac{\sqrt3}4 \left(2(x^2-4)\right)^2 \, \Delta x = \sqrt3 (x^2-4)^2 \, \Delta x

and using the result of part (a) again, the volume is

\displaystyle \int_{-2}^2 \sqrt 3(x^2-4)^2 \, dx = \frac{\sqrt3}4 \times 8 \int_0^2 (x^2-4)^2 \, dx = \boxed{\frac{512}{5\sqrt3}}

7 0
2 years ago
Area and perimeter please
Nadya [2.5K]

your missing some number to do the process

the first question you add all the sides


8 0
3 years ago
Read 2 more answers
Q is equidistant from the sides of ZTSR. Find mZRST. The
melisa1 [442]

9514 1404 393

Answer:

  40°

Step-by-step explanation:

Triangles QRS and QTS are congruent (HL), so the marked angles are also congruent:

  3x +2 = 4x -4

  6 = x

Then the total angle measure of angle RST is ...

  (3x +2) +(4x -4) = 7x -2 = 7(6) -2 = 40 . . . degrees

m∠RST = 40°

6 0
3 years ago
Other questions:
  • Explain how you know which coins could be used to show 0.77 of a dollar
    5·1 answer
  • John’s parents recorded his height at various ages between 36 and 66 months.
    6·1 answer
  • Estimate the product of 16x59. Choose a method
    9·2 answers
  • You have made 3 out of 10 of your last free throws. How many free throws can you expect to make if you shoot 100 free throws?
    10·2 answers
  • Write an algebraic expression for the phrase "thirty less than the product of a number y and four".
    10·2 answers
  • Please, PLEASE help me! It’s due today! Please answer it properly! I’ll give Brainliest if the answer is correct, thank you In a
    5·1 answer
  • You are moving to a new apartment and need to hire a moving company. You’ve researched local moving companies and found these pr
    10·1 answer
  • Function f is defined by the equation f(x) = x2 1. What is f(2) ?​
    10·2 answers
  • Twenty decreased by the product of four and a number
    12·1 answer
  • A rectangular swimming pool measures 40 meters in length and 30 meters in width. in the scale drawing of the pool, 1 centimeter
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!