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Montano1993 [528]
4 years ago
11

The diameter of a rod is 4 cm. If the material weighs 9.42 kg and has a

Mathematics
1 answer:
irinina [24]4 years ago
7 0

You are going to multiply 9.42 by 6 g/cm3 by 3.14..I think

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Can anyone help me. Please
faust18 [17]

Answer:

how can I help?

Step-by-step explanation:

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5 0
3 years ago
Julie will build a rectangular pen for her dog against a barn. A wall from the barn will form one side of the pen. She has 32 m
MAXImum [283]

Answer:

<h3> The width (side perpedicular to the barn):  <u>x = 8 m</u></h3><h3>      The lenght (side parallel to the barn):  <u>y = 16 m</u> </h3>

Step-by-step explanation:

x  - the width of the barn

She has 32 m of fencing so for the lenght remain (32-2x) m of fencing:

y = 32 - 2x

Area of the fencing:  A = x•y

A(x) = x•(32 - 2x)

A(x) = -2x² + 32x             ←  quadratic function

The maximum value of quadratic function occurs at:  x=-\frac b{2a}

a = -2,  b = 32

x=-\frac b{2a}=-\frac{32}{2\cdot(-2)}=-(-8)=8

32-2x = 32 - 2•8 = 16

4 0
3 years ago
Can you help me please with this question
GREYUIT [131]

Answer:

132

Step-by-step explanation:

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6 0
3 years ago
If the circumference of a circle is 37.7 what is the diameter
Arada [10]
The diameter is 12 :)
6 0
3 years ago
Mr. Pham wrote the equation below on the board.
Margaret [11]

Answer:

x=5.5

Step-by-step explanation:

We can solve this equation by using the various properties and PEMDAS.

First, we would want to subtract 18 on both sides, to even out the equation.

The result is -7x=-38.5

Now we can isolate the x by dividing both sides by -7.

-38/-7=5.5

Thus, x=5.5

Hope this helps!

7 0
3 years ago
Read 2 more answers
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