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
zmey [24]
2 years ago
8

30 pts ! The height of the Ferris wheel in feet can be represented by the function 50 cos (π/15(x-10))+52 with time in x seconds

. When does the height of 80 feet occur on the interval 0

Mathematics
1 answer:
Dahasolnce [82]2 years ago
7 0

h = 50 cos ( pie(x - 10 )/15 ) + 52

80 = 50 cos ( pie( x - 10 )/15 ) + 52

80 - 52 = 50 cos ( pie( x - 10 )/15 )

28 = 50 cos ( pie( x - 10 )/15 )

cos ( pie( x - 10 )/15 ) = 28/50

cos ( pie( x - 10 )/15 ) = 56/100

cos ( pie( x - 10 )/15 ) = cos ( 56 )

cos ( pie( x - 10 )/15 ) = cos ( 0.3111 pie )

Thus ;

pie( x - 10 )/15 = 0.3111 pie

( x - 10 )/15 = 0.3111

x - 10 = 15 × 0.3111

x - 10 = 4.6665

x = 10 + 4.6665

x = 14.6665 [ approximately ]

Thus the correct answer is exactly what u chose goodjob .....

You might be interested in
What is the surface area of the cylinder? 14ft length 9ft height
Alina [70]

Answer:

C

Step-by-step explanation:

I am assuming the top and bottom are closed.

Surface are = area of the curved side + 2 * area of the top

=  9* 14 * π + 2 * π * 7^2

= 126π + 98π

= 224π ft^2

6 0
2 years ago
The price of an item has been reduced by $2.18. The new sale price is $36.64. What was the original price?
Ilia_Sergeevich [38]

Hello :D

To find out the original price you have to do:

$36.64 + $2.18 = $38.82

Original price = $38.82

4 0
2 years ago
Read 2 more answers
When a mathematician writes QED at the end of a proof, what does this
blondinia [14]

(C)

Step-by-step explanation:

Q.E.D means "quod erat demonstrandum" indicating that the proof is completed.

6 0
2 years ago
What is the solution to 4n-6=10n?
Trava [24]
First get n's by them selves
-6 = 10n -4n (remember to always change sign when crossing the equals sign. 

-6 = 6n ( subtract and take sign of the larger) ( then divide both sides by 6 to solve for n)
-1 = n 
hope this helps
5 0
3 years ago
Choose the equation of the line that is equal to the x-axis.
stiv31 [10]

Answer:

C) x=y

hope it helps.

<h3>stay safe healthy and happy.</h3>
8 0
2 years ago
Other questions:
  • Brainliest + Points! I choose A, Am I correct?
    13·2 answers
  • What is the period of the function? y=cos(pi/2)
    9·1 answer
  • A worker is installing blue and white square tiles in a kitchen. Blue tiles have different lengths than white tiles. A row of 8
    13·1 answer
  • How to round 1.61 to the nearest ten?
    10·1 answer
  • Why does round pizza come in a square box?
    11·2 answers
  • PLEASE WHOEVER ANSWERS ALL OF THEM GETS 80 POINTS AND BRAINLIEST
    13·1 answer
  • Which line is perpendicular to the line shown on the graph?
    10·2 answers
  • A manufacturer gets a shipment of 580 batteries of which 27 are defective. The store manager wants to be able to test random sam
    8·1 answer
  • Please help me I will give brainliest
    5·1 answer
  • Answwer this please for 20 points and brainiest
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!