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LenKa [72]
3 years ago
8

If AB= 5 what is the exact length of BD in square ABCD ​

Mathematics
1 answer:
Afina-wow [57]3 years ago
5 0

Answer:

sqrt 50

Step-by-step explanation:

First of all this is a square so if AB = 5, then AD is also 5.

Let's get rid of the other triangle and only focus on triangle ABD.

Using Pythagorean theorem we are able to solve this problem.

The Pythagorean Theorem basically states that:

a^2 + b^2 = c^2

Where a and b are the legs and c is the hypotenuse, aka the thing that we are trying to solve for right now.

Substitute these numbers in: 5^2 + 5+2 = c^2

Solve: 50 = c^2

c= sqrt 50

^ and that is our answer!

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Suppose you have two similar rectangular prisms. The volume of the smaller rectangular prism is 125 in^3 and the volume of the l
Fittoniya [83]

Answer:

\boxed{ \frac{ 5}{ 9}}\\

Step-by-step explanation:

Data:

V₁ = 125 in³

V₂ = 729 in³

Calculations:

A scale factor (C) is the ratio of corresponding side lengths (l) of the two prisms.

C=\frac{ l_{1}}{ l_{2}}\\

The volume ratio is the cube of the scale factor.

\frac{V_{1}}{ V_{2}} = C^{3}\\

\frac{125}{ 729} = C^{3}\\

C = \sqrt [3]{\frac{ 125}{729 }} = \frac{5 }{9 }\\

\boxed{ \textbf{The scale factor is } \frac{ 5}{ 9}.}\\

7 0
3 years ago
Find equations for the lines through the point (a,
Free_Kalibri [48]
The line y = mx + c has a slope of m.

Parallel line:
A parallel line will also have a slope of m, and should be of the form
y = mx + k
Because the line passes through the point (a,b), therefore
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The equation of a parallel line is
y = mx + b - ma
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Perpendicular line:
A perpendicular line will have a slope of -1/m, because the product of slopes should be -1.
The equation for a perpendicular line is of the form
y = -(1/m)x + k
Because the line passes through (a,b), therefore
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The equation for a perpendicular line is
y = -(x/m) + b + a/m 
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Answer:
Parallel line: y=m(x-a)+b
Perpendicular line: y=- \frac{1}{m}(x-a)+b

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3 years ago
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Answer:

find the x and y values

Step-by-step explanation:

Ordered pairs are often used to represent two variables. we write (x, y) The number which corresponds to the value of x is called the x-coordinate and the number which corresponds to the value of y is called the y-coordinate.

Hope this helps

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