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
steposvetlana [31]
3 years ago
14

Help please!!. Graph the function: f(x) = cos(2x)+1 Please plot 5 points on the graph

Mathematics
1 answer:
VLD [36.1K]3 years ago
5 0

Answer:

(0, 2) (pi/4, 1) (pi/2, 0) (3pi/4, 1) (pi, 2)

Step-by-step explanation:

New period is 2pi/2 = pi

Take intervals of new period/4 = pi/4

For the first positive cycle, take:

x= 0,

x= pi/4,

x= 2pi/4 = pi/2

x= 3pi/4

x= 4pi/4 = pi

Find the corresponding y values on the calculator (your calculator should be on radian mode)

x= 0, y= cos[2(0)]+1 = 2

x= pi/4 y= cos[2(pi/4)]+1 = 1

x = pi/2 y= cos[2(pi/2)]+1 = 0

x = 3pi/4 y= cos[2(3pi/4)]+1 = 1

x= pi y= cos[2(pi)]+1 = 2

(0, 2) (pi/4, 1) (pi/2, 0) (3pi/4, 1) (pi, 2)

These 5 coordinates should be enough for one cycle, copy the same cycle for "pi to 2pi" and the negative x-axis

You might be interested in
Helppppppppppp !??????
Molodets [167]

Answer:

24 hours

Step-by-step explanation:

To answer this question, you just have to divide the total amount Mary is trying to earn, $132, by the unit rate, $5.50 per hour:

132 / 5.50 = 24

So, Mari needs to work 24 hours to earn $132

Hope this helps :)

8 0
3 years ago
Read 2 more answers
A spinner has 5 sections labeled a b c d and e the spinner was spun 84 times and the results are recorded in the table.
Keith_Richards [23]
The answer is E 17 you divide 84 by 5
5 0
3 years ago
6m-2 = m+13 how do i solve it
kakasveta [241]
First move the terms to get
6m-m=13+2
Then collect the like terms and calculate the sum, 5m=15
Divide both sides by 5
And you get m=3
4 0
3 years ago
Estimate the sum 7 8/9 + 3.1
Yanka [14]

Answer:

\large\boxed{7\dfrac{8}{9}+3.1=10\dfrac{89}{90}}

Step-by-step explanation:

\text{Convert the decimal to the fraction:}\\\\3.1=\dfrac{31}{10}=3\dfrac{1}{10}\\\\7\dfrac{8}{9}+3.1=7\dfrac{8}{9}+3\dfrac{1}{10}\\\\\text{The common denominator is 90.}\\90=9\cdot10\\\\7\dfrac{8}{9}=7\dfrac{8\cdot10}{9\cdot10}=7\dfrac{80}{90}\\\\3\dfrac{1}{10}=3\dfrac{1\cdot9}{10\cdot9}=3\dfrac{9}{90}\\\\\\7\dfrac{8}{9}+3.1=7\dfrac{80}{90}+3\dfrac{9}{90}=(7+3)+\dfrac{80+9}{90}=10\dfrac{89}{90}

3 0
3 years ago
How do you multiply
DedPeter [7]

Answer:

Step-by-step explanation: FIRST YOU PUT THE NUMBER AND THEN X AFTER THAT YOU PUT THE NEXT NUMBER.

5 0
3 years ago
Read 2 more answers
Other questions:
  • -1.4 -1 and 1/25 -1.25 least to greatest
    5·1 answer
  • If f is translated 4 units down to create g, which function represents g? A. g(x) = f(x) - 4 B. g(x) = f(x - 4) C. g(x) = f(x +
    8·1 answer
  • Alex invests $2,000 in a company's stock. After a year, the value of Alex's stock has increased to $2,500. What rate of return h
    7·2 answers
  • What is the solution to the system of equations?
    9·1 answer
  • your teacher is giving out food for lunch or paperback a taste for Apple 6 Pairs and eight oranges what is a compliment to this
    10·1 answer
  • Mana is saving to buy a new bicycle. The equation d = 12w represents the amount in dollars, d, that Mana saves in w weeks.What i
    12·1 answer
  • Two times the sum of nine and a number is the opposite of 9.
    8·1 answer
  • *GIVING BRAINLIEST!!!*
    15·2 answers
  • The perimeter of a square is 54 cm.Find the length of a diagonal, rounding to the nearest tenth
    15·1 answer
  • Classify this expression: -2x
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!