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olga_2 [115]
3 years ago
15

Lesson 7 homework practice convert measurment unit

Mathematics
1 answer:
Sphinxa [80]3 years ago
5 0
What is the problem? 
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I need help fast what is twice the cube of a number in number form???
professor190 [17]

I believe what you're looking for is : 2x^3  

3 0
3 years ago
Oceanside Bike Rental Shop charges 12 dollars plus 6 dollars an hour for renting a bike. Write an expression for the cost of ren
Katen [24]

Answer:

<em></em>y = 12 + 6x<em></em>

<em></em>

Step-by-step explanation:

Given

Base\ Amount = 12

Additional = 6 per hour

Required

Determine the expression for the cost in x hours

Represent the cost with y

y is calculated using the following expression

y = Base\ Amount + Additional * x

Where x represent the number of hours.

Substitute values for the base amount of bike and the additional cost per hour

y = 12 + 6 * x

y = 12 + 6x

<em>So, the expression to determine the cost of bike in x hours is: </em>y = 12 + 6x<em></em>

6 0
3 years ago
Amare wants to ride a Ferris wheel that sits four meters above and has a diameter of 50 meters. It takes 6 minutes to do three r
Veseljchak [2.6K]
To answer this question, we begin to transform the speed of revolutions per minute in radians per minute.
 They tell us that the speed of the wheel is 3 turns in 6 minutes.
 So:
 1 revolution = 2π
 (2π / 1 turn) * (3 turns / 6min) = 6π/ 6min = 1π / min.
 The wheel turns π or 180 ° in one minute.
 We already have the angular velocity w.
 We know that the lowest point of the wheel is 4 meters above the ground and that it returns to the same point every 2π
 Therefore, the function sought is periodic and must be equal to 4 for allvalues ​​of time k, where k is an even number 2, 4, 6, 8, .., k

 Then the function must have the form rsin(wt) where "t" is the elapsed time, "w" is the previously calculated angular velocity, and "r" is the radius of the wheel.
 The minimum value of the function must be 4 and the maximum value 54.
 Therefore, the function is:

  h (t) = 4 + 25 + 25sin (π×t + 3π / 2)
 Where 3π/ 2 is the phase angle, which indicates that the movement starts at the instant t = 0 at the lowest point of the wheel that equals 3π / 2.
 You can verify the answer in the following way:

 After 1 minute, the wheel should have rotated 180 ° or π. Therefore, the person must be at the highest point of the wheel and his height must be 54 m.
 When you replace t = 1 in the formula, you get h = 54m
 After 2 minutes, the wheel should have rotated 360 ° or 2π. Therefore, the person must be at the starting point and their height must be 4 m.
 By replacing t = 2 in the formula you will get h = 4m
 After 0.5 minutes, the wheel should have rotated 90 ° or π / 2. Therefore, the person must be in the right half of the wheel and his height must be 29 m.
 When replacing t = 0.5 in the formula you will get h = 29m
4 0
4 years ago
The parallelogram whose diagonals are equal in length and not perpendicular is
mamaluj [8]

Answer:

Rectangle.

Step-by-step explanation:

If the diagonals are equal then the parallelogram is a rectangle. They are also equal in length in a square, which can be regarded as a special type of rectangle - but in this case the diagonals are perpendicular. They are also perpendicular in a rhombus.

4 0
3 years ago
In edguinity I need help with the factoring expressions quiz
slega [8]

Answer:

ok what is it? go post more questions.

Step-by-step explanation:

the good thing about edge quizzes is you get two attempts.  

or ya know, just look up the questions on brainly, they're probably already here.

7 0
3 years ago
Read 2 more answers
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