Mathematics, 10.01.2020 05:31, Maaarii

What is the surface area of the prism?
length: 15mm
width: 3mm
height: 4mm

Answers: 3

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Answers

The answer is: " 234 mm² " .

Explanation:

This would refer to a rectangular prism that has 6 (SIX) sides.

The formula for the surface area for a rectangular prism is:

Surface area: 2ab + 2bc + 2ac ;

In which, Given the length, width, and height of the prism;

a = length of one of the three dimensions;
b = length of one of the three dimensions (one of the remaining two dimensions not used to be represented by "a");
c = length of one of the three dimensions (the remaining dimension that is not already represented by "a" or "b" ;

Given:

Length: 15 mm ;
Width:   3 mm ;
Height:   4 mm ;

Let: a = 15 mm ;
b = 3 mm ;
c = 4 mm ;

Since the formula for the surface area of a rectangular prism is:

Surface area: 2ab + 2bc + 2ac ;

We can solve for the surface area by plugging in our given values:

Surface area: = 2(15mm)*(3mm) + 2(3mm)*(4mm) + 2(15mm)*(4mm) ;

= 90 mm² + 24 mm² + 120 mm² ;

= 234 mm² .

answered: Guest

Iam thinking the answer is a.) knew

answered: Guest

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

$4/2 = 2\\7/3.5=2\\8/4=2\\10/5=2$

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

$y=\frac{x}{2}$

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

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What is the surface area of the prism?
length: 15mm
width: 3mm
height: 4mm...