If the perimeter of a triangle is 10x + 5y and two of the sides are 3x + 4y and 5x − y, which is the third side? A. 2x + 2y B. 2
x + y C. −2x + 2y D. x + 2y
1 answer:
The measures of two sides of a triangle are 3x + 4y and 5x - y. If the perimeter is 10x + 5y, find the measure of the third side.
<span>Let measure of the 3rd side be 'b'. </span>
<span>Substitute the values of length of the two sides and perimeter in equation and solve for b. </span>
<span>So, 10x + 5y = 3x + 4y + 5x - y + b..........[Substitute the values] </span>
<span>10x + 5y = 8x + 3y + b </span>
<span>(10x + 5y) - (8x + 3y) = b </span>
<span>10x + 5y - 8x - 3y = b </span>
<span>10x - 8x + 5y - 3y = b </span>
<span>2x + 2y = b </span>
<span>So, the measure of the third side is 2x + 2y. </span>
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Here is the correct answer, and explanation for how to get the answer, and a way to remember how to use them for next time :)
It’s the second one I think
Answer:
n≥9
Step-by-step explanation:
n-7>=2
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Answer:
8.2pi
Step-by-step explanation:
Hi there!
If the diameter of the rug is 8.2, the radius is 4.1.
The formula for circumference of a circle is 2*pi*r
We'd just plug in 4.1 for r.
2*pi*4.1=8.2pi
Hope this helped! Have a great day! ^u^
