<span>A. Numerical expression
The given mathematical expression only shows numbers which is primarily described by 1 and 12 which is in the operation of multiplication.
A variable expression could be that 2x+3=5
Where x is the variable in the given mathematical expression.
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If the perimeter is 26, and the width is 4, then add 4 twice, to get 8. Then subtract 8 from 26 to then get 18, you have two lengths, so divide 18 by 2. Your answer is 9.
To check add 4+4+9+9 = 26.
hope it helped! :)
1. in how many ways can you arrange five mathematics books,four science books,and three english books, on a shelf such as that books of the same subject are kept together.
<h3><em><u>For Mathematics=5</u></em></h3>
<h2 /><h2>--------------------------------------------------------------------------------</h2><h2> </h2><h3><em><u>For Science=4</u></em></h3>
P=n!}
P=4!
P=4×3×2×1
P=24
<h2> --------------------------------------------------------------------------------</h2>
<h3><em><u>For English=3</u></em></h3>
P=n!
P=3!
P=3×2×1
P=6
<h2> --------------------------------------------------------------------------------</h2>
Multiply all the permutations:
P=120×24×6
P=17,280
<h2>--------------------------------------------------------------------------------</h2>
There are <u>17,280</u> ways we can arrange in a shelf.
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<h3>→XxKim02xX</h3>
Answer:
No
Step-by-step explanation:
18-6=12
-18+6=-12
It is the opposite because rather than subtracting from a positive, you're adding to a negative.
Hope this helps :)
The figure is really just 3 triangles and 1 rectangle, as you see in the picture below.
notice the blue triangle has a base of 3 and a height of 2,
the green triangle has a base of 6 and a height of 1,
the yellow triangle has a base of 2 and a height of 6,
and the rectangle is a 7x6 rectangle.
we can simply get the area of each and sum them up, that's the area of the figure.