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
Drupady [299]
3 years ago
10

Write the equation of the graph

Mathematics
1 answer:
olchik [2.2K]3 years ago
5 0

Answer:

y = 2.cos(x) - 2

Step-by-step explanation:

1. Shifting cos(x) right or left, top or down, as the graph in the question has the same illustration of  cos(x). Consider

y = a.cos(x) + b

2. find a and b by using two sample points from the graph: (0, 0) and (\pi, -4)

0 = a.cos(0) + b  => a + b = 0\\ -4 = a.cos(\pi) + b => b-a=-4\\\left \{ {{2b=-4} \atop {2a=4}} \right.\\a = 2, b=-2\\

You might be interested in
PLEASE HELP ASAP!!!!! <br><br>Which function could be shown in the graph below?<br>​
Leokris [45]

Answer:

The answer is A

Step-by-step explanation:

I draw a graph

5 0
3 years ago
Pls help!!!!!!!!!!!1
Sloan [31]

Answer:lol it's -3

Step-by-step explanation: it's 3 because you had dirt 45.50 in your account and then you have to get books and those books will cost $3 more which means that you don't have that money since it indicates that in the problem which means that it would be -3 because you don't have the money so that's why I think it's negative 3.  

6 0
3 years ago
An electric sale gives a reading equal to the true weight plus a random error that isnormally distributed with mean 0 and standa
Pepsi [2]

Answer:

a) 95% confidence interval estimate of the true weight is (3.026, 3.274)

b) 99% confidence interval estimate of the true weight is (2.944, 3.356)

Step-by-step explanation:

Confidence Interval can be calculated using M±ME where

  • M is the mean of five successive weightings (3.150)
  • ME is the margin of error from the mean

And margin of error (ME) can be calculated using the formula

ME=\frac{t*s}{\sqrt{N} } where

  • t is the corresponding statistic in the given confidence level and degrees of freedom(t-score)
  • s is the standard deviation of the random error (0.1)
  • N is the sample size (5)

Using the numbers 95% confidence interval estimate of the true weight is:

3.150±\frac{2.776*0.1}{\sqrt{5} }≈3.150±0.124

And 99% confidence interval estimate of the true weight is:

3.150±\frac{4.604*0.1}{\sqrt{5} }≈3.150±0.206

3 0
3 years ago
State the amplitude, period, vertical shift, and horizontal shift for: y = 6 sin(40) + 5
FromTheMoon [43]

Answer:

17

Step-by-step explanation:

4 0
3 years ago
HELP ASAP
gavmur [86]

Answer:

cookie dough fundraiser is a great way to raise money for your school, team, ... selling large or small cookie dough tubs, or pre-portioned cookie dough trays.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Please help!!! Sketch one cycle of the graph of the sine function:<br> y=2sinπθ
    15·1 answer
  • I have to do systems by substitution practice <br> ex -2x + y =-16<br> -8x - 7y = -20
    12·2 answers
  • To solve a system of inequalities, you just need to graph each inequality and see which points are in the overlap of the graphs
    7·2 answers
  • Can the square root of 130 be simplified.
    14·2 answers
  • 4 1/4 divided by 2/7<br><br> (x+8)-(3x- 5)<br><br> Explain how you got the answer!!!!!
    10·1 answer
  • A single die is rolled one time. Find the probability of rolling a number greater than 2 or less than 5.
    5·1 answer
  • Asleigh is 5 years older than Nua. Nua is twice as old as Sian. Their ages all add up to 100. How old is Asleigh?
    14·1 answer
  • Which best describes the data set below?
    15·1 answer
  • Which postulate, if any can be used to prove the triangles congruent
    10·2 answers
  • If AC is 11 inches and BC is 4 inches, then AB
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!