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
Igoryamba
3 years ago
5

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
2 answers:
jolli1 [7]3 years ago
4 0

Answer:

y = 5cos(πx/4) +11

Step-by-step explanation:

The radius is 5 ft, so that will be the multiplier of the trig function.

The car starts at the top of the wheel, so the appropriate trig function is cosine, which is 1 (its maximum value) when its argument is zero.

The period is 8 seconds, so the argument of the cosine function will be 2π(x/8) = πx/4. This changes by 2π when x changes by 8.

The centerline of the wheel is the sum of the minimum and the radius, so is 6+5 = 11 ft. This is the offset of the scaled cosine function.

Putting that all together, you get

... y = 5cos(π/4x) + 11

_____

The answer selections don't seem to consistently identify the argument of the trig function properly. We assume that π/4(x) means (πx/4), where this product is the argument of the trig function.

11Alexandr11 [23.1K]3 years ago
4 0

Answer:


Step-by-step explanation:

You have to start by making a small chart of what  is happening at what time.

x    0        4        8

y    16       6       16

Essentially this is a cosine function.

Now you need to fill in some of the details. The key is what is happening at x = 4 seconds? At that time, you must add a minus amount in the cosine function to the amplitude to get 6. The only way to do that is if you have

y = 5* cos( (x/4)*pi) + 11

y = 5*cos( (4/4)*pi) + 11

y = 5 * cos(pi) + 11

y = 5 * (-1) + 11

y = -5 + 11 = 6

==================

x = 0

y = 5* cos( (pi/4)*0 ) + 11

y = 5 * cos(0) + 11

y = 5 (1) + 11

y = 16

===================

x = 8 seconds

y = 5*cos(8/4)*pi) + 11

y = 5*cos(2*pi) + 11

y = 5 * (1) + 11

y = 16

==================

The question is where did the 11 come from?

The Ferris wheel has a diameter of 10 feet and a radius of 5

The high and low points are 16 and 6.

The center of the Ferris wheel is between 16 and 6. Between in this case means average.

(16 + 6)/2 = 22/2 = 11

You might be interested in
What is 0.00837 written in scientific notation?
Angelina_Jolie [31]

Answer:

8.37 x 10^-3

(Scientific Notation)

 

8.37 x 10^-3

(use the caret symbol [^] to type or write)

8.37E-3

(Scientific E-notation)

0.00837

(Real Number)

Step-by-step explanation:

How to convert numbers or decimals to scientific notation?

In scientific notation all numbers are written in the form of m×10n (m times ten raised to the power of n), where the exponent n is an integer, and the coefficient m is any real number, called the significand or mantissa. If the number is negative then a minus sign precedes m (as in ordinary decimal notation).

7 0
3 years ago
Martin can run 1 mile in 7 minutes. What valid proportions can be written from this information? Check all that apply. StartFrac
Tpy6a [65]

Answer:

<u>1/7=3/21</u>

<u>7/1=21/3</u>

the other fractions are not correct/valid therefore the fractions above are the correct answers

Step-by-step explanation:

Let me know if you need any other help:)

3 0
3 years ago
Read 2 more answers
An airplane climbs at an angle of 13 with the ground . What is the distance it has traveled when it has attained an altitude of
nevsk [136]
The distance traveled is the hypotenuse of the right triangle formed with the ground.

sinα=400/d

d=400/sinα, we are told α=13° so

d=400/sin13 ft

d≈1778ft (to nearest whole foot)
6 0
3 years ago
Evaluate the expression<br> -11^3<br> The value of the expression is
Ad libitum [116K]

Answer: - 1331

Step-by-step explanation:

(-11)(-11)(-11)

(121)(-11)

- 1331

5 0
2 years ago
Tyler says he invented a number puzzle. He asks clare to pick a number, and asks her to do the following:
zimovet [89]
Set up an equation to see how this makes sense.
Let X be your original number.

So...
2(3x-7)-22/6=-3
6x-14-22/6=-3
6x-36/6=-3
6x-36=-18
6x=18
X=3
8 0
3 years ago
Read 2 more answers
Other questions:
  • How many 5-letter passwords can be created if no letter can be used twice within the password?
    13·2 answers
  • There are 27 chocolates in a box, all identically shaped. There 4 are filled with nuts, 8 with caramel, and 15 are solid chocola
    14·1 answer
  • the measurement of one angle of a right angle is 42 degrees what is the measurement of the third angle
    13·1 answer
  • Choose the correct translation of the following statement into symbolic form using the uppercase letters available. If neither w
    7·1 answer
  • A baseball team won 10 games and lost 7 games. Approximately what percent of games did the team win?
    10·2 answers
  • A table is in the shape of a regular pentagon with a side length of 3 feet and an
    9·1 answer
  • Anyone know the answerr ill mark u as brainlist.5star. and like ​
    13·1 answer
  • Write the algebraic expression for “twice a number n decreased by seven”
    14·1 answer
  • I need these answers by 1:30
    12·1 answer
  • Sketch a graph of the following rational function: h(x)= x²-1/ x³-2x²-x+2​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!