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
Neporo4naja [7]
3 years ago
7

What is 18/1÷4/3 can it be simplyed ​

Mathematics
1 answer:
avanturin [10]3 years ago
6 0

Answer:

13 and 1/2. If this helped, please give it 5 stars. :)

Step-by-step explanation:

You might be interested in
Jamie is riding a Ferris wheel that takes fifteen seconds for each complete revolution. The diameter of the wheel is 10 meters a
Agata [3.3K]

Answer:

The answers to the question is

(a) Jamie is gaining altitude at 1.676 m/s

(b) Jamie rising most rapidly at t = 15 s

At a rate of 2.094 m/s.

Step-by-step explanation:

(a) The time to make one complete revolution = period T = 15 seconds

Here will be required to develop the periodic motion equation thus

One complete revolution = 2π,

therefore the  we have T = 2π/k = 15

Therefore k = 2π/15

The diameter = radius of the wheel = (diameter of wheel)/2 = 5

also we note that the center of the wheel is 6 m above ground

We write our equation in the form

y = 5*sin(\frac{2*\pi*t}{15} )+6

When Jamie is 9 meters above the ground and rising we have

9 = 5*sin(\frac{2*\pi*t}{15} )+6 or 3/5 = sin(\frac{2*\pi*t}{15} ) = 0.6

which gives sin⁻¹(0.6) = 0.643 =\frac{2*\pi*t}{15}

from where t = 1.536 s

Therefore Jamie is gaining altitude at

\frac{dy}{dt} = 5*\frac{\pi *2}{15} *cos(\frac{2\pi t}{15}) = 1.676 m/s.

(b) Jamie is rising most rapidly when   the velocity curve is at the highest point, that is where the slope is zero

Therefore we differentiate the equation for the velocity again to get

\frac{d^2y}{dx^2} = -5*(\frac{\pi *2}{15} )^2*sin(\frac{2\pi t}{15}) =0, π, 2π

Therefore -sin(\frac{2\pi t}{15} ) = 0 whereby t = 0 or

\frac{2\pi t}{15} = π and t =  7.5 s, at 2·π t = 15 s

Plugging the value of t into the velocity equation we have

\frac{dy}{dt} = 5*\frac{\pi *2}{15} *cos(\frac{2\pi t}{15}) = - 2/3π m/s which is decreasing

so we try at t = 15 s and we have \frac{dy}{dt} = 5*\frac{\pi *2}{15} *cos(\frac{2\pi *15}{15}) = \frac{2}{3} \pim/s

Hence Jamie is rising most rapidly at t = 15 s

The maximum rate of Jamie's rise is 2/3π m/s or 2.094 m/s.

7 0
3 years ago
1/8+c=4/5<br><br><br>Solve for C. I need help fast.
Alex777 [14]
C is 27/40. If you add it to 1/8 and simplify, you get 4/5.
4 0
3 years ago
Eli has 7 games on his phone . his sister has 6 more than him which ratio compares the number of games on Eli's phone to the num
Assoli18 [71]

Answer:

7:13

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the perimeter of this shape?
PSYCHO15rus [73]

<u>Given</u>:

Given that the sides of the shape.

The given shape consists of 8 sides.

We need to determine the perimeter of the given shape.

<u>Perimeter</u>:

The perimeter of the figure can be determined by adding all the lengths of the sides of the shape.

Thus, we have;

Perimeter=10+4+2+4+6+4+2+4

Adding the values, we get;

Perimeter = 36

Thus, the perimeter of the given shape is 36 feet.

5 0
3 years ago
Read 2 more answers
I need help plz it is for khan academy
Schach [20]

Answer:

slope = 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (0, 1)

m = \frac{1-0}{0+1} = 1

7 0
3 years ago
Other questions:
  • The amounts that two partners invested in a new business are given below. If the partners share the profits in the same ratio as
    8·1 answer
  • Could you please help me?
    7·1 answer
  • What is the gcf of 14x^2 and 4xy
    6·1 answer
  • Which is an irrational number between -9 and -10?
    11·2 answers
  • B) Using the expression from part A, evaluate to find how much money Jerry and Valerie will have after 20 months. Show all your
    8·1 answer
  • What are the slope and y-intercept for the graph of y = -10x + 2?​
    8·1 answer
  • Please help i don't know
    15·2 answers
  • Helooooooooooooooooooooooooooooooooooo
    14·1 answer
  • What is 1/4 divided in 3 equal parts
    14·2 answers
  • A sea lion jumped out of the water to a height of 3 feet above sea level. The number line shows the location of the sea lion at
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!