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e-lub [12.9K]
3 years ago
8

How many planes are shown in the figure?

Mathematics
1 answer:
grigory [225]3 years ago
8 0

check the picture below.

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10. When a rubber ball is dropped from a height, h cm on to a flat concrete floor, it rebounds to 3 5 h cm a height of Given a r
Xelga [282]

Step-by-step explanation:

Let the height above which the ball is released be H

This problem can be tackled using geometric progression.

The nth term of a Geometric progression is given by the above, where n is the term index, a is the first term and the sum for such a progression up to the Nth term is

To find the total distance travel one has to sum over up to n=3. But there is little subtle point here. For the first bounce ( n=1 ), the ball has only travel H and not 2H. For subsequent bounces ( n=2,3,4,5...... ), the distance travel is 2×(3/4)n×H

a=2H..........r=3/4

However we have to subtract H because up to the first bounce, the ball only travel H instead of 2H

Therefore the total distance travel up to the Nth bounce is

For N=3 one obtains

D=3.625H

7 0
3 years ago
Smith has a garden with 40 carrots in it. They pick some carrots to feed their pet rabbit, leaving 90% of the carrots in the gar
adelina 88 [10]

Answer:the answer is 44

Step-by-step explanation: cuz  40 divided by 90%= 44

7 0
3 years ago
Read 2 more answers
A small submarine starts at –1,080 feet in relation to sea level. Then it descends 8 feet per minute for 11 minutes. What expres
BARSIC [14]

Answer:

-1,080 + (-8)(11)

Step-by-step explanation:Well for one it has to be -1,080 becuase it already starts as a neagtive. So the answer has to -1,080 + (-8)(11) becuase you adding/mutpilying  8 x 11

6 0
4 years ago
Roy purchased different cardboard pieces that had the same ratio of the length to the width. The table below shows the length an
Alexxandr [17]
6 to 5, 12 to 10, 18 to 15, 24 to 20, x to 25

Let's take a look at x/25 ratio, which has to be equal 6/5.

\frac{x}{25}= \frac{6}{5}  \\
25*6=5x\\
5x=150\\
x=30

The answer is 30 inches.
7 0
3 years ago
Read 2 more answers
Which situation can be represented by -85+85 choose all that apply
Anuta_ua [19.1K]
0 is most likely the answer. considering you didn’t add a picture or anything like that.
6 0
3 years ago
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