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
Vera_Pavlovna [14]
3 years ago
14

Which is the graph of y = cos4(x - 2)?

Mathematics
2 answers:
Stolb23 [73]3 years ago
7 0

Answer:

It's the image that is more compressed. This is because the period is decreased.

Step-by-step explanation:

Inga [223]3 years ago
5 0

Answer:

undefined

Step-by-step explanation:

You might be interested in
What is matter in science​
Anettt [7]

Answer:

science makes you understand the world understand the living organisms understand electricity and understand chemical reactions which is one of the most important things to know in life

5 0
2 years ago
Fizzy Waters has been involved in multiple lawsuits regarding the alkaline substance concentration in their product and getting
ser-zykov [4K]

Answer:

Step-by-step explanation:

For the sample, n = 12

Mean, x = (158.2 + 162.8 + 161.5 + 161.2 + 166.5 + 160.1 + 158.4 + 175.6 + 159.9 + 168.8 + 161.9 + 163.7)/12 = 163.22

Variance, s² = (summation(x - mean)²/n

Summation(x - mean)² = (158.2 - 163.22)^2 + (162.8 - 163.22)^2 + (161.5 - 163.22)^2 + (161.2 - 163.22)^2+ (166.5 - 163.22)^2 + (160.1 - 163.22)^2 + (158.4 - 163.22)^2 + (175.6 - 163.22)^2 + (159.9 - 163.22)^2 + (168.8 - 163.22)^2 + (161.9 - 163.22)^2 + (163.7 - 163.22)^2 = 273.5368

Variance, s² = 273.5368/12 = 22.79

This is a test for a single variance. We would set up the test hypothesis.

For the null hypothesis,

H0: σ² ≥ 25

For the alternative hypothesis,

H1: σ² < 25

The formula for determining the test statistic,x² is

x² = (n - 1)s²/σ²

Where n - 1 is the degree of freedom, df.

df = 12 - 1 = 11

x² = (11 × 22.79)/25 = 10.0276

For a test of 90% reliability, Confidence level = 0.9

Cl = 1 - alpha(level of significance)

alpha = 1 - 0.9 = 0.1

The critical value from the chi-square distribution table is 17.28. Since 17.28 > 10.0276, we would reject the null hypothesis. Therefore, the filling machine does not need repair because the variance of the process is not more than 25 oz.

8 0
2 years ago
What is the volume of the sphere in terms of<br> |<br> --<br> 6 in.
sineoko [7]

Answer:

904.3 cubic inches

Step-by-step explanation:

v= 4/3 π r^3

= 1.33 x 3.14 x 6^3

= 904.3 cubic inches

6 0
2 years ago
Read 2 more answers
What is meant by the term 'domain'?
damaskus [11]
B the set of input values for the function.
4 0
2 years ago
At the beginning of October, you have $300 in your bank account. You get $25 of allowance each week. Your cousin has $200 in her
lys-0071 [83]

Answer:

20 weeks to have the same amount for both bank accounts

Step-by-step explanation:

brainliest plss?

6 0
2 years ago
Other questions:
  • Answer this |2x-9|&lt;8
    5·2 answers
  • What is the slope of the line whose equation is 8x-4y=8?
    11·1 answer
  • Please help!! What is the value of the following expression when x=3 and y= -2?
    13·2 answers
  • I needz duh help pwease and tank chu?
    9·2 answers
  • 12. Judith randomly selected 20% of the
    11·2 answers
  • What does 563÷7= <br><br>i need this​
    14·2 answers
  • Please help me, please
    14·1 answer
  • Geometry... Please help and I'll mark brainliest. Triangle proofs &amp; reasons
    8·1 answer
  • The length of a rectangle is 20 inches less than twice the width. The perimeter of the rectangle is 86 inches. Find the dimensio
    13·1 answer
  • Player a throws the ball 25 yards to player b. After catching the ball, player be immediately turns 90° to his left and runs wit
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!