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Vladimir [108]
3 years ago
12

In a trapezoid ABCD with legs AB and CD , the diagonals intersect each other at point O.

Mathematics
1 answer:
blondinia [14]3 years ago
3 0
Where are the choices??
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The measure of a square wall is 9 feet 7 inches on each side. Estimate the square feet a painter would have to cover to the near
Nookie1986 [14]
First, convert those inches to feet. 
7in =ish 0.5833333
(you find this by dividing 7/12 on a calculator)
Now you just square 9.583333333
9.583333333^2
9.583333333 * 9.583333333
91.84027777ish
Rounded to the nearest foot, means the answer is 92ft.
5 0
3 years ago
The formula for the bowline of a sphere is V=4/3πr^3. solve for r
Tpy6a [65]

Answer:

r=\sqrt[3]{\frac{3V}{4\pi}}

Step-by-step explanation:

v= \frac{4}{3} \pi r^3

We need to isolate 'r'

To isolate 'r' , first multiply by 3 on both sides

3v=4* \pi r^3

divide by 4pi on both sides

\frac{3V}{4\pi} = r^3

Take cube root on both sides

\sqrt[3]{\frac{3V}{4\pi}}= r

5 0
3 years ago
Congruence postulates
ZanzabumX [31]

Step-by-step explanation:

Ok, imagine I have a finger pointed up, and you have your's as well. They are not congruent / parallell to each other because they are not in the same plane.

Plane: A plane is kind of the space around you, so take a paper and draw a line, the space around the line is called a plane. To make two lines parallell, they have to be straight and be in the same plane

Congruence/congruent= Equal(led) to

Postulates means that you know it without proof, for example, a right angle is 90 degrees.

There are different congruence postulates. It can be used for triangles or for other shapes.

I hope this answers your question, I am not to sure on what you said !

6 0
3 years ago
4x + 2y + z = 8<br> solve for x, y, and z
atroni [7]
Hello there. I did one part of your question.

4x + 2y + z = 8

<span><span>−<span>4x</span></span>−<span>2y</span></span>+<span>8</span>
5 0
3 years ago
Find the slopes of the line that goes thru the following points
Oliga [24]

Given:

Find-: Slope of the line.

Sol:

The slope of line is:

m=\frac{y_2-y_1}{x_2-x_1}

Where,

\begin{gathered} (x_1,y_1)\text{ = First point} \\  \\ (x_2,y_2)=\text{ Second point} \end{gathered}

Choose any point:

\begin{gathered} (x_1,y_1)=(-1,-4) \\  \\ (x_2,y_2)=(0,-1) \end{gathered}

So, the slope of the line is:

\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\  \\ m=\frac{-1-(-4)}{0-(-1)} \\  \\ m=\frac{-1+4}{0+1} \\  \\ m=\frac{3}{1} \\  \\ m=3 \end{gathered}

Slope of line is 3.

7 0
1 year ago
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