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Yuki888 [10]
3 years ago
15

PLEASE HELP ONLY IF RIGHT 69 points, brainliest, 5 stars, and thank you.

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
4 0

Answer: 804.25cm

Step-by-step explanation:

V=πr2h/3

pi= 3.14

r=8cm

h= 12cm

Slot the values

3.14× (8x8) × 12/3

3.14 × 64 x 4

V= 804.25cm

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Very Confused please help!
Nataly_w [17]
We know that<span>
<span>Figures can be proven similar if one, or more, similarity transformations (reflections, translations, rotations, dilations) can be found that map one figure onto another. 
In this problem to prove circle 1 and circle 2 are similar, a translation and a scale factor (from a dilation) will be found to map one circle onto another.

we have that</span>
<span> Circle 1 is centered at (5,8) and has a radius of 8 centimeters
 Circle 2 is centered at (1,-2) and has a radius of 4 centimeters
</span>
step 1
<span>Move the center of the circle 1 onto the center of the circle 2
the transformation has the following rule</span>
(x,y)--------> (x-4,y-10)
so
(5,8)------> (5-4,8-10)-----> (1,-2)
so
center circle 1 is now equal to center circle 2 
<span>The circles are now concentric (they have the same center)
</span>
step 2
<span>A dilation is needed to decrease the size of circle 1 to coincide with circle 2
</span>
scale factor=radius circle 2/radius circle 1-----> 4/8----> 0.5

radius circle 1 will be=8*scale factor-----> 8*0.5-----> 4 cm
radius circle 1 is now equal to radius circle 2 

<span>A translation, followed by a dilation will map one circle onto the other, thus proving that the circles are similar

the answer is
</span>
</span>The circles are similar because you can translate Circle 1 using the transformation rule (x-4,y-10) and then dilate it using a scale factor of (0.5)
4 0
3 years ago
Can someone please help me with this question?
Vanyuwa [196]

Answer:

5 seconds

Step-by-step explanation:

In 5 seconds it will be at 98 meters

x = -b/2a

x = -20/2(-2) = -20/-4 = 5

8 0
2 years ago
Calculate the volume of the prism by first finding the total number of half-unit cubes that will fill it. There are 8 half-unit
Tema [17]

Answer: 3

Step-by-step explanation: QPEX VERIFIED JUST DID IT

4 0
2 years ago
What are some of the applications for exponential functions?
frozen [14]

Answer:

Some of the applications for exponential functions are:

1. model populations

2. carbon date artifacts

3. compound interest

hope this helps!

4 0
3 years ago
Help. only questions 3 &amp; 4 .
Maksim231197 [3]

I'm doing 3

     For 3, using a table is very similar to a double number because the numbers are matching up in both ways.

         On the bottom of a double number line we have like, for example,-- the bottom of the double number line would have batches. And its 1, 2, 3 ,4 , etc.

         And on a table, it would be the same, the numbers on both diagrams have the same methods, have same way of lining things up but they're just drawn differently.

                Hope this helped!

 

3 0
3 years ago
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