3 years ago

A paper plate has a diameter of 9 inches.what is there circumference of them plate?use 22/7 for pie

Mathematics

1 answer:

ollegr [7]3 years ago

4 0

3 1/7 because it is a mixed fraction

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An artist cuts 4 squares with sides of length x ft from the corners of a 12 ft-by-18 ft rectangular piece of sheet metal. She be

ehidna [41]

Answer:

$V = 216x - 60x^2 + 4x^3$

Step-by-step explanation:

The volume V of the fountain is equal to:

V = L*W*h

Where L is the lenght of the fountain, W is the width of the fountain and h is the high of the fountain

We already know that h is equal to x. On the other hand, if we cut a square with side of length x, L and W are calculated as:

L = 18 - 2x

W = 12 - 2x

So, replacing L, W and h on the equation of the volume, we get:

V = (18-2x)*(12-2x)*x

Finally, simplifying the function we get:

$V = ((18*12)+(18*(-2x))+(-2x*12)+((-2x)*(-2x)))*x$

$V = (216-36x-24x+4x^2)*x\\V = (216-60x+4x^2)*x\\V = 216x - 60x^2 + 4x^3$

6 0

4 years ago

Please help me with this please.

Keith_Richards [23]

Answer:

total number of miles driven

3 0

3 years ago

Sarah's mom takes the parkway to work. It takes her 30 minutes at the 80 mile marker where she enters to her exit at mile marker

koban [17]

Answer:

66mph also please answer my question i need hellp!!

Step-by-step explanation:

121 - 88 = 33

And the time is 30 minutes, but since your looking for miles per _hour_. You must convert it

30 minutes = 0.5 hours

Lastly, you divide distance over the time

33/0.5 = 66 mph

4 0

4 years ago

2540 centimeters are equal to how many inches? <br><br>1 inch=2.54 cm

Savatey [412]

1000 inches because I googled it

7 0

3 years ago

Read 2 more answers

5 times a number is 14 less than the square of that number. Find the negative solution.

ryzh [129]

The answer is 7

steps:
7*5=35
7 squared is 49
49-35=14

4 0

3 years ago