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8_murik_8 [283]
3 years ago
12

The first side of a triangle is 9 meters shorter than the second side. The third side is 3 times as long as the first side. The

perimeter is 39 meters. Find the length of the longest side.
Mathematics
1 answer:
Alex73 [517]3 years ago
7 0

Answer:

The longest sides is 18 m long.

Step-by-step explanation:

Let x meters be the length of the first side.

The length of the second side = x+9 m.

The length of the third = 3x m.

Perimeter = x + 3x + x + 9 = 39

5x + 9 = 39

5x = 30

x = 6 m.

The other 2 sides are  6+9 = 15 m and 3*6 = 18 m.

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Igoryamba
A and C are the answer
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3 years ago
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Carlos drew a plan for his garden on a coordinate plane. Rose bushes are located at A(–5, 4), B(3, 4), and C(3, –5)
BartSMP [9]

Given:

A(-5,4)

B(3,4)

C(3,-5)

So point D is:

so point D is (-5,-5)

For AB is

Distance between two point is:

\begin{gathered} (x_1,y_1)and(x_2,y_2) \\ D=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2} \end{gathered}

so distance between A(-5,4) and B(3,4) is:

\begin{gathered} D=\sqrt[]{(3-(-5))^2+(4-4)^2} \\ =\sqrt[]{(8)^2+0^2} \\ =8 \end{gathered}

So AB is 8 unit apart.

For B(3,4) and C(3,-5).

\begin{gathered} D=\sqrt[]{(3-3)^2+(-5-4)^2} \\ =\sqrt[]{0^2+(-9)^2} \\ =9 \end{gathered}

So BC is 9 unit apart.

For fourth bush point is (-5,-5) it left of point C(3,-5) is:

\begin{gathered} D=\sqrt[]{(3-(-5))^2+(-5-(-5))^2} \\ =\sqrt[]{(8)^2+0^2} \\ =8 \end{gathered}

so fourth bush is 8 unit left of C.

For fourth bush(-5,-5) below to point A(-5,4)

\begin{gathered} D=\sqrt[]{(-5-(-5))^2+(4-(-5))^2} \\ =\sqrt[]{0^2+9^2} \\ =9 \end{gathered}

so fourth bush 9 units below of A.

8 0
1 year ago
A triangle has two sides of length 19 and 15. What is the largest possible whole-number length for the third side?
tensa zangetsu [6.8K]

Answer: 33

To maximize the length of the third side, which I'll call x, it needs to be the longest side.

So by the triangle inequality theorem, 19+15>x, meaning the maximum whole number value of x is 33.

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2 years ago
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ira [324]

Answer:

Step-by-step explanation:

3.714285714285714‬

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3 years ago
A fish is 12 meters below the ocean what's it's elevation
mamaluj [8]
A fish is 12 meters below the ocean

below the ocean means lower than the surface (or in the negatives)

12 is the amount of meters it is at

-12 meters is your answer

hope this helps
6 0
3 years ago
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