Answer:
See attachment for triangle
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Step-by-step explanation:
Given
Shape: Equilateral triangle

Required
Draw the triangle
First, we determine the side lengths.
The perimeter of an equilateral triangle is:

So, we have:

Solve for Length


<em>See attachment for triangle</em>
Answer:
4 1/2. Root 18 simplifies to 4.242640687, which is less than 4.50
Answer: 151
Step-by-step explanation:
12 x 13 = 156
156 - 5 = 151
Answer:
a=1
Step-by-step explanation:
Multiply all terms by a and cancel:
6+−6a=3+−3a
−6a+6=−3a+3(Simplify both sides of the equation)
−6a+6+3a=−3a+3+3a(Add 3a to both sides)
−3a+6=3
−3a+6−6=3−6(Subtract 6 from both sides)
−3a=−3
−3a
−3
=
−3
−3
(Divide both sides by -3)
a=1
Answer:
The fourth line will have 15 marbles
Step-by-step explanation:
The third line has 7 marbles. So, you double that and add one in order to find the number of marbles in the fourth line.
7*2=14
14+1=15