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2 years ago

1300 error interval to 2dp

Mathematics

1 answer:

Degger [83]2 years ago

5 0

Answer:

Huh

Step-by-step explanation:

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Melanie swam 918 meters in 3 days if she swam the distance each day how many far did melanie swim in one day

Svetradugi [14.3K]

$918/3=306$
So 306 meters per day.

4 0

2 years ago

Mae Ling earns a weekly salary of $305 plus a 6.0% commission on sales at a gift shop. How much would she make in a work week if

insens350 [35]

Answer:

Mae's weekly salary plus 6.0% commision= $305

she makes in a work week after selling= 6/100 x$4400

=$264

Total weekly her earning= $305+$264

=$569

Step-by-step explanation:

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2 years ago

Write two numbers that multiply to the value on top and add to the value on bottom.

zavuch27 [327]

2 and 4 because they all multiply and add up to 12 and 20

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3 years ago

Read 2 more answers

MN is the midsegment of the trapezoid ABCD. What is the length of segment AB?

vladimir1956 [14]

Dear Student,

Answer to your query is provided below:

The length of segment AB = 8

Explanation to answer is provided by attaching image.

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2 years ago

Water is added to a cylindrical tank of radius 5 m and height of 10 m at a rate of 100 L/min. Find the rate of change of the wat

nirvana33 [79]

Answer:

$V = \pi r^2 h$

For this case we know that $r=5m$ represent the radius, $h = 10m$ the height and the rate given is:

$\frac{dV}{dt}= \frac{100 L}{min}$

$Q = 100 \frac{L}{min} *\frac{1m^3}{1000L}= 0.1 \frac{m^3}{min}$

And replacing we got:

$\frac{dh}{dt}=\frac{0.1 m^3/min}{\pi (5m)^2}= 0.0012732 \frac{m}{min}$

And that represent $0.127 \frac{cm}{min}$

Step-by-step explanation:

For a tank similar to a cylinder the volume is given by:

$V = \pi r^2 h$

For this case we know that $r=5m$ represent the radius, $h = 10m$ the height and the rate given is:

$\frac{dV}{dt}= \frac{100 L}{min}$

For this case we want to find the rate of change of the water level when h =6m so then we can derivate the formula for the volume and we got:

$\frac{dV}{dt}= \pi r^2 \frac{dh}{dt}$

And solving for $\frac{dh}{dt}$ we got:

$\frac{dh}{dt}= \frac{\frac{dV}{dt}}{\pi r^2}$

We need to convert the rate given into m^3/min and we got:

$Q = 100 \frac{L}{min} *\frac{1m^3}{1000L}= 0.1 \frac{m^3}{min}$

And replacing we got:

$\frac{dh}{dt}=\frac{0.1 m^3/min}{\pi (5m)^2}= 0.0012732 \frac{m}{min}$

And that represent $0.127 \frac{cm}{min}$

5 0

3 years ago