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cupoosta [38]
4 years ago
9

A rectangle has a length of 6 feet and a width of 4 feet. The perimeter of the rectangle can be found using the equation =2×6+2×

4. Which equation can also be used to find the perimeter of the rectangle?
Mathematics
1 answer:
evablogger [386]4 years ago
6 0

Answer:

The correct answer is perimeter is given by 2 × ( l + w), where l is the length and w is the width of the rectangle.

Step-by-step explanation:

A rectangle has a length of 6 feet and a width of 4 feet. The perimeter of the rectangle can be found using the equation =2×6+2×4.

Let l be the length and w be the width of a rectangle.

Since there four sides of a rectangle, the perimeter is given by adding all the sides.

Therefore perimeter of the rectangle is given by l + l + b + b = 2×l +2×w = 2 × ( l + w).

The equation given by 2 × ( l + w) can also be used to find the perimeter of any given rectangle.

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3 years ago
I need help finding x
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Answer:

The answer to your question is      x = \sqrt{50}    or x = 5\sqrt{2}

Step-by-step explanation:

To solve this problem use the Pythagorean theorem because two right triangles are formed.

                    c² = a² + b²

c = 10

a = x

b = x     Because in a square all the sides measure the same.

                    10² = x² + x²

- Simplify

                    100 = 2x²

                    x² = 100/2

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                    x = \sqrt{50}    or x = 5\sqrt{2}

         

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3 years ago
Which t-chart represents the absolute value equation y = |5x|?
Crank
<h3>Answer: Choice C</h3>

=============================================

Explanation:

Choices A, B and D are not true because of the negative y values. The result of an absolute value is never negative. So we can rule out choices A, B, and D. We have choice C as the only thing left, so this must be the answer.

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

Another way to see this is by plugging in each x value to see what y value comes out.

  • If x = -2, then y = |5*x| = |5*(-2)| = |-10| = 10
  • If x = -1, then y = |5*x| = |5*(-1)| = |-5| = 5
  • If x = 0, then y = |5*x| = |5*0| = |0| = 0
  • If x = 1, then y = |5*x| = |5*1| = |5| = 5
  • If x = 2, then y = |5*x| = |5*2| = |10| = 10

The y outputs from top to bottom are: 10, 5, 0, 5, 10

This matches with what choice C shows.

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Step-by-step explanation:

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