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LiRa [457]
3 years ago
15

Find the arc length of the curve

%7B1%7D%7B4%7D%20y%20%7B%20-%202%7D" id="TexFormula1" title="x = \frac{1}{8} y {4} + \frac{1}{4} y { - 2}" alt="x = \frac{1}{8} y {4} + \frac{1}{4} y { - 2}" align="absmiddle" class="latex-formula">
from y = 1 to y = 4.​
Mathematics
1 answer:
vfiekz [6]3 years ago
8 0

Answer:x=2

Step-by-step explanation:

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If the student has already read 2525 of the pages, how long will it take them to read the rest of the book? _____ minutes Your a
Alja [10]

The number of pages the student can read in a minute is an illustration of rates.

The time left to complete the whole book is 90 minutes

From the complete question, the student's rate is:

\mathbf{Rate = 50\ pages/hr}

The number of pages is:

\mathbf{Total = 100\ pages}

First, we calculate the time to read the whole book

\mathbf{Total\ Time = \frac{Total\ pages}{Rate}}

\mathbf{Total\ Time = \frac{100\ pages}{50\ pages/ hr}}

\mathbf{Total\ Time = 2\ hours}

The number of the student has read is:

\mathbf{Pages = 25}

Next, we calculate the time spent on the 25 pages

\mathbf{Time\ Spent = \frac{Pages}{Rate}}

\mathbf{Time\ Spent = \frac{25\ pages}{50\ pages/hr}}

\mathbf{Time\ Spent = 0.5\ hr}

Convert to minutes

\mathbf{Time\ Spent = 30\ minutes}

So, the time left is:

\mathbf{Time\ Left = Total\ Time - Time\ Spent}

This gives

\mathbf{Time\ Left = 2\ hours- 30\ minutes}

\mathbf{Time\ Left = 1\ hour, 30\ minutes}

Convert to minutes

\mathbf{Time\ Left = 90\ minutes}

Hence, the time left is 90 minutes

Read more about rates at:

brainly.com/question/18065083

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3 years ago
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Answer:SKSKSKKSKSK

Step-by-step explanation: SK+SK=SKSKSKKSKSK

7 0
4 years ago
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.1 is the rational number
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3x + 2 (2x - 1) = 33
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3 years ago
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The weight distribution of a vehicle specifies that the front wheels carry 55% of the weight. If a certain vehicle weighs 3890 l
mario62 [17]

Answer:

2,139.5 lbs

Step-by-step explanation:

A certain vehicle weighs 3,890 lbs.

The front wheels carry 55% of the weight.

Then,

3,890 lbs - 100%

x lbs - 55%

Write a proportion:

\dfrac{3,890}{x}=\dfrac{100}{55}

Cross multiply:

100x=55\cdot 3,890

100x=213,950\\ \\x=2,139.5

8 0
3 years ago
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