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
shtirl [24]
3 years ago
6

The function f(t) = 5 cos(pi over 6t) + 7 represents the tide in Stanley Sea. It has a maximum of 12 feet when time (t) is 0 and

a minimum of 2 feet. The sea repeats this cycle every 12 hours. After four hours, how high is the tide?
11.3 feet


9.5 feet


4.5 feet


2.6 feet

Mathematics
2 answers:
Aliun [14]3 years ago
7 0

Answer:

the answer to this question would be 4.5

Juliette [100K]3 years ago
4 0
The function for the height is
f(t) = 5cos( \frac{ \pi }{6} t)+7

f(0) = 5 cos(0) + 7 = 5 + 7 = 12  (verified)
The period is T  = 12 hours.

After 4 hours (t = 4), the height is
f(4) = 5cos( \frac{ 4\pi }{6} )+7 = 5*(-0.5)+7=4.5

A graph of f(t) confirms the answer.

Answer: 4.5 ft

You might be interested in
-6+6=0 is an example of what property ?
notka56 [123]

Step-by-step explanation:

communitive property

4 0
3 years ago
Please give me correct answer and fast answer it if know answer only
Stolb23 [73]

Answer:

Approximatley 5.8 units.

Step-by-step explanation:

We are given two angles, ∠S and ∠T, and the side opposite to ∠T. We need to find the unknown side opposite to ∠S. Therefore, we can use the Law of Sines. The Law of Sines states that:

\frac{\sin(A)}{a}=\frac{\sin(B)}{b} =\frac{\sin(C)}{c}

Replacing them with the respective variables, we have:

\frac{\sin(S)}{s} =\frac{\sin(T)}{t} =\frac{\sin(R)}{r}

Plug in what we know. 20° for ∠S, 17° for ∠T, and 5 for <em>t</em>. Ignore the third term:

\frac{\sin(20)}{s}=\frac{\\sin(17)}{5}

Solve for <em>s</em>, the unknown side. Cross multiply:

\frac{\sin(20)}{s}=\frac{\sin(17)}{5}\\5\sin(20)=s\sin(17)\\s=\frac{5\sin(20)}{\sin(17)} \\s\approx5.8491\approx5.8

6 0
3 years ago
Read 2 more answers
Together, kamela and Leo have 198 stamps. Kamela’s collection has 62 more stamps Thant Leon’s collection. How many stamps does L
Rufina [12.5K]
Leo has 99 stamps compared to kamela
4 0
2 years ago
a polynomial function p(x) with rational coefficients has the given roots (10-square root of 6 and 4i). Find two additional root
Aleonysh [2.5K]

Answer:

6px

Step-by-step explanation:

hope this help

8 0
3 years ago
Erin spent $15.30 on ingredients for cookies she’s making for the school bake sale. How many cookies must she sell at $0.35 a pi
blondinia [14]

Answer:

she needs to sell at least 44 cookies to make a $0.10 profit

Step-by-step explanation:

to find the answer all you have to do is divide 15.30 by 0.35

4 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose that the population of a town Increases by 3% each year. the population of the town today is 25,000
    15·1 answer
  • The gas mileage of Car A is 21 miles per gallon. The gas mileage of Car B is 30 miles per gallon. Which of the following graphs
    7·1 answer
  • Which equation represents a proportional relationship?
    7·1 answer
  • Anna is organizing 40 sheets of red and blue scrapbook paper. She places 15 blue sheets in each of 2 folders. Then she splits th
    9·2 answers
  • (9,-4); slope =2/3 write the equation of the line
    9·1 answer
  • What is the value of x in the circle below? If necessary round your answer to the nearest tenth. I AM FAILING THIS CLASS I JUST
    11·2 answers
  • Find the multiplicative inverse of -2 in mod 7<br>​
    14·1 answer
  • Please Help Me Solve This
    14·1 answer
  • Three ballet dancers are positioned on stage. If Damon is 4 feet straight behind Leroy and 3 feet directly left of Aubrey, how f
    7·1 answer
  • Grade 8 math - 15 points :)<br><br><br>Hopefully someone can draw the plot
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!