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3 years ago

Help, please! I need an answer within a hour!

Mathematics

1 answer:

Oksana_A [137]3 years ago

8 0

Answer:

=24in^2

Step-by-step explanation:

Whole perimeter: 72 in

72/3= 24 in

10+7h=24

7h=14

h=2

Area= 1/2 (24)*2

=24in^2

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Need Help ASAP). □ ABC is transformed to □ DBE. I posted a picture of the design and questions A, B, and question C. ( Will Mark

salantis [7]

Answer:

A)A reflection can be used to create DBE

B)The Angles are congruent, as the transformation was rigid, which preserves angle measure and side length.

C)All the angles are corresponding to the second figure as well as the sides. (name all the sides and angles that are corresponding)

Ex: ABC=DBE

Hope this helps!

P.S. Stay Safe!

-Andrew-OUT!

3 0

3 years ago

Read 2 more answers

If f(x) =69-15x then f(f^-1(x))

xenn [34]

If f(x)=69-15x then $f(f^{-1}(x))=x$

Given :

$f(x)=69-15x\\$

Lets find out $f^{-1}(x)$ . The steps to find out f inverse are

Replace f(x) by y

$y=69-15x\\Interchange \; the \; variables\\x=69-15y\\solve \; for \; y\\x-69=-15y\\Divide \; by \; -15\\\frac{-x+69}{15} =y\\Replace \;y \;with \; f^{-1}\\f^{-1}=\frac{-x+69}{15}$

Now we find $f(f^{-1}(x))$

Replace inverse function in the place of x in f(x)

$f(f^{-1}(x))=f(\frac{-x+69}{15} )=69-15(\frac{-x+69}{15})=69-(-x+69)=69+x-69=x\\f(f^{-1}(x))=x$

Learn more :

brainly.com/question/11242094

8 0

3 years ago

Help me please, ps u don't have to answers all of them

Leni [432]

A) To find the surface area of a cube, you have to use the formula 6•a^2
meaning you just have to calculate one side and multiply it by six.
541.5 is the surface area of the cube.
B) To find the surface area for just five sides, you'll be doing the same, except instead of 6 it'll be five.
so multiply 9.5 by itself
you get 90.25
Then you multiply 90.5 by 5
You get 451.25

Unfortunately I'm not sure how to do C. good luck

5 0

4 years ago

The figure below is a right rectangular prism with

svlad2 [7]

Answer:

The area of the base of the rectangular prism is:

18 square centimeters.

The height of the rectangular prism is:

6 centimeters.

The volume of the rectangular prism is:

108 cubic centimeters.

Step-by-step explanation:

To find the area of the base of the prism, you must remember that it corresponds to the rectangle formed by the points ABCD, with this in mind we apply the area formula that is equal to:

Area of a rectangle = base * height.

Since the rectangle formed by the mentioned points has a base of 9 cm and a height of 2 cm, these values are the ones we use in the formula:

Area of a rectangle = 9 cm * 2 cm
Area of a rectangle = 18 cm^2

Since the height requested by the second question is not from the rectangle at the base but from the entire prism, you should look at the height formed by the AW points, which as you can see is:

Prism height = 6 cm

Once we have these two data, it is very easy to calculate the volume since they are what we require in the volume formula:

Volume = area * height.
Volume = 18 cm^2 * 6 cm
Volume = 108 cm^3

6 0

3 years ago

I need this fast guys. This is due tomorrow help a fellow comrade out

gavmur [86]

So whats the answer. please help me I got a test of this

3 0

3 years ago