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3 years ago

on square bcde if e is located at (4,-9) and d is located at (10,-5) find the perimeter of the square

Mathematics

1 answer:

mariarad [96]3 years ago

5 0

Answer:

8 $\sqrt{13}$ units

Step-by-step explanation:

We know that:

P = 4a

We can find one side by distance formula:

a = $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
a = $\sqrt{(10 - 4)^2+(-5+9)^2} = \sqrt{36+16} = \sqrt{52} = 2\sqrt{13}$

Then the perimeter is:

P = 4*2 $\sqrt{13}$ = 8 $\sqrt{13}$ units

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Which of the following is an infinite series?

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Answer:

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10,20,40,80,160,

so basically its multiplying *2

I cant do #2 without seeing the formula

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3 years ago

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2 years ago

You are allowed to eat at most 12 pieces of candy. You have already eaten 2. Write an inequality and solve to find how many more

I am Lyosha [343]

Answer:

One of the below.

Step-by-step explanation:

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3 years ago

A mirror is 24 inches high and 28 inches wide. The center of the mirror will hang 514 feet from the floor on a wall that is 8 fe

Vanyuwa [196]

The distance from the top of the mirror to the ceiling once the mirror is hung on the wall is 21 inches

The dimension of the mirror is given as:

$Height = 24\ in$

$Width = 28\ in$

From the center of the mirror to the floor of the wall, the distance is:

$Distance =5\frac14\ ft$

So, the distance to the top of the mirror will be:

$Top = 5\frac 14\ ft + \frac 12 \times Height$

Substitute 24 for height

$Top = 5\frac 14\ ft+ \frac 12 \times 24\ in$

$Top = 5\frac 14\ ft+ 12 \ in$

Convert feet to inches

$Top = 5\frac 14\times 12\ in+ 12 \ in$

$Top = 63\ in+ 12 \ in$

$Top = 75 \ in$

The distance from the top of the mirror to the ceiling is the difference between the height of the wall and 75 inches.

So, we have:

$Distance = 8\ ft - 75\ in$

Convert feet to inches

$Distance = 8\times 12\ in - 75\ in$

$Distance = 96\ in - 75\ in$

$Distance = 21\ in$

Hence, the distance is 21 inches

Read more about lengths at:

brainly.com/question/10545161

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2 years ago

Find the value of x (sines and cosines)

Sav [38]

You would begin by choosing which trigonometric function to use.
In this case, you would use sine.

Sine is opposite over hypotenuse.
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sin(35) = $\frac{18}{x}$ (multiply x to both sides)
x sin(35) = 18 (divide sin(35) to both sides)
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4 years ago