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tatuchka [14]
3 years ago
15

A triangle has side lengths of (x-6), (x+2) and (x-9). Find the perimeter of the triangle

Mathematics
1 answer:
Setler [38]3 years ago
8 0

Answer:

3x - 13

Step-by-step explanation:

The perimeter is just the distance around the triangle. We have all three sides, so we can just add them together to get the total distance.

(x-6) + (x+2) + (x-9)

Group:

x + x + x - 6 + 2 - 9

3x - 13

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A 13 and one fourth inch board is cut from a 38 and three fourths inch board. The saw cut takes three eighths inch. How much of
gogolik [260]

Answer:

There is 25 1/8 inches left

Step-by-step explanation:

We have a board that is 38 3/4 inches

We cut away 13 1/4

38 3/4

-13 1/4

-----------

25 2/4

The saw takes 3/8

25 2/4

-    3/8

-------------

Get a common denominator of 8   2/4 * 2/2 = 4/8

25 4/8

-    3/8

-------------

25 1/8

There is 25 1/8 inches left

7 0
4 years ago
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What is 1/(2^3) written as a negative exponent?
fiasKO [112]

Answer:

in negative exponent is 2^-3

6 0
3 years ago
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The area of a rectangular field is 6840 m2. If the width of the field is 72m , what is its length?
IgorLugansk [536]

Answer:

I believe that the answer is 95 meters.

Explanation:

Okay, so to solve this question, you must know the formula to solve for the area of a rectangle/square.

<em>Area of a rectangle/square - </em><em>l x w</em>

<em />

In this question, you can see the the width (72 m) and the area (6840 m²) is already given. What you can do in this situation is to use the opposite operator (division) to solve for the length of the rectangular field.

<em>6840 ÷ 72 = </em><em>95</em>

You can always double check to see if the number is correct.

<em>A = l x w</em>

<em>= 72 m x 95 m</em>

<em>= </em><em>6840 m</em>²

Really hope this helped. :)

6 0
3 years ago
A polygon has the following coordinates: A(-4,4), B(-1,1), C(-6,1). Find the length of BC.
Amiraneli [1.4K]

Answer:

5

Step-by-step explanation:

|BC|=\sqrt{(X_c-X_b)^2+(Y_c-Y_b)^2} =\sqrt{25+0} =5.

7 0
3 years ago
Help me with this problem please.
melomori [17]

Answer:

your the problem

Step-by-step explanation:

3 0
3 years ago
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