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3 years ago

Compute the perimeter of the rectangle using the distance formula. (round to the nearest integer)

Mathematics

2 answers:

GenaCL600 [577]3 years ago

5 0

The answer is D 45.
Using the distance formula and the ordered pairs (1,8) & (4,5) for the short side and ((4,5) & (17,18) for the long side.
sqrt [(x2-x2)^2 + (y2-y1)^2]
sqrt [(4-1)^2 + (5-8)^2] = sqrt [ 9 + 9 ] = sqrt (18) (short side)
sqrt [(17-4)^2 + (18-5)^1 = sqrt [169 + 169] = sqrt (338) long side
P = 2L + 2W
P = 2sqrt18 + 2sqrt 338 = 45.25 = 45

Nuetrik [128]3 years ago

4 0

You have to take the sum of the distance between each point. It doesn't matter what order you use just keep it consistent, the shortest distance between any 2 points in the plane is a straight line.

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Write ordered pairs of integers that satisfy the criteria in each part below. Remember that the origin is the point whose coordi

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Answer:

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opposite signs case 1: C (2,-4)

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b. These points’ horizontal distance from the origin is two units more than the vertical distance

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both coordinates negative B (-4,-2)

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opposite signs case 2: D (-4,2)

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Step-by-step explanation:

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3 years ago

What is the length of a segment in the complex plane with endpoints at 4 + 2i and 7 – 2i?

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Answer:

Step-by-step explanation:

The complex number 4 + 2i on the complex plane has coordinates (4,2) and the complex number 7 - 2i has coordinates (7,-2). Thus, the length of a segment in the complex plane with endpoints at 4 + 2i and 7 – 2i is

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3 years ago

I need help on this aswell

Katena32 [7]

Answer:

Graph C

Step-by-step explanation:

Hi there!

The given linear equations are organized in slope-intercept form: $y=mx+b$ where m is the slope of the line and b is the y-intercept, or the value of y when the line crosses the y-axis.

y = 2x + 4

Here, the b value is 4. Therefore, the y-intercept of this line is 4.

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Here, the b value is -2. Therefore, the y-intercept of this line is -2.

To identify the graph that models these equations, we just have to look for the graph where the lines cross the y-axis at 4 and -2.

The only graph that does this is graph C.

I hope this helps!

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Novay_Z [31]

Answer and Explanation:

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