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mart [117]
4 years ago
14

What is the surface area of a rectangular prism with a length of 3 cm, a width of 10 cm and a height of 4 cm?​

Mathematics
1 answer:
shutvik [7]4 years ago
6 0

Answer:

120!

Step-by-step explanation:

3x10x4= (3x10)x4= 30x4=120

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devlian [24]

Answer:

2/3

Step-by-step explanation:

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4 0
4 years ago
Read 2 more answers
If the farmer has 250 feet of fencing to create a rectangular pen, define a function f that expresses the area of the field (mea
hoa [83]

Answer:

Maximum area possible

f(max)  = 3906,25 ft²

Dimensions:

a  = 62,5  ft

w  = 62,5 ft

Step-by-step explanation:

Perimeter of the rectangular fencing    P  =  250 feet

And sides of the rectangle  a  and  w (width of rectangle)

Then

A =  a*w

2a  + 2w  = 250       ⇒  a  =  (250 -2w)/ 2    ⇒  a = 125 - w

f(w)  =  (125  - w ) *w        f(w)  = 125w - w²  

Taking derivatives both sides of the equation

f´(w)   =  125  - 2w              f´(w)   = 0           125  - 2w = 0

w = 125/2

w = 62,5 ft            ⇒  a = 125 - 62,5

a = 62,5 ft

f(max)  = ( 62,5)²

f(max)  = 3906,25 ft²

8 0
3 years ago
Which best describes the orthocenter of a triangle?
Sidana [21]
B. I guessing let me kno if it’s wrong
8 0
3 years ago
Solve by completing the square:X^2+6x-12=0
Ira Lisetskai [31]
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x = <u>-6 +/- √(84)
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</u>               2<u>
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x = -3 + √(21)      x = -3 - √(21)
5 0
4 years ago
When comparing prices for activities at a local recreation center, you notice that the center charges different prices on differ
nikklg [1K]
The activity type would be the input and the cost would be the output. Because there are two different costs for the same activity, this would not be a function.
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4 0
3 years ago
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