Answer:
3x+8
Step-by-step explanation:
First, we can write the sum into a <em>mathematical expression</em>:
<em>The sum of (x+5) and (2x+3)</em>
<em />
<u>(x+5)+(2x+3)</u>
<u />
<em>However, we do not need the parenthesis. It is unnecesarry here as we are just adding the two parts:</em>
<em />
<u>x+5+2x+3</u>
<u />
Using <em>commutative property</em>, we can rearrange the symbols so that the x's are with each other and the numbers are with each other:
<u>x+2x+5+3</u>
<u />
Now we can <em>simplify</em> the expression:
<u>3x+8</u>
<u />
Hope this helped :)
The correct value for x is 35 for (3x+16) and (5x-54) both equal 121
Answer:
C. 1.5 cm
Step-by-step explanation:
A pentagon is a polygon with 5 sides.
The formula for the area of a regular polygon is

where a is the apothem and p is the perimeter. The perimeter is found by multiplying the number of sides of the figure by the length of 1 of those sides:
5(2.2) = 11
Now we have everything we need to solve for the length of the apothem.

Begin by multiplying both sides by 2 to get rid of the fraction, so
16.6 = 11a Divide both sides by 11 to get
a = 1.5090909 or
C. 1.5 cm
Answer:
sin(2x)cos(7x) - cos(2x)sin(7x)= -0.1
20% off original price that is $25
so 0.20 * 25 = 5
so that means that the new price is $20
you save $5