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ozzi
3 years ago
12

Daisy cut a square out of a sheet of graph paper. The square had an area of 16 square cm. She then trimmed 1 cm from each side o

f the square. What is the area of the snaler square?
Mathematics
1 answer:
Degger [83]3 years ago
7 0

Answer: 4 cm^2, it went from 4x4 to 2x2.. clipped on all sides...

Hope I helped!

Giving me brainliest is much appreciated! :).

You might be interested in
The set of the consecutive odd numbers 1, 3, 5, 7, ... , N has a sum of 400. How many numbers are in the set?
Amanda [17]

Well, we could try adding up odd numbers, and look to see when we reach 400. But I'm hoping to find an easier way.

First of all ... I'm not sure this will help, but let's stop and notice it anyway ...
An odd number of odd numbers (like 1, 3, 5) add up to an odd number, but
an even number of odd numbers (like 1,3,5,7) add up to an even number.
So if the sum is going to be exactly 400, then there will have to be an even
number of items in the set.

Now, let's put down an even number of odd numbers to work with,and see
what we can notice about them:

         1, 3, 5, 7, 9, 11, 13, 15 .

Number of items in the set . . . 8
Sum of all the items in the set . . . 64

Hmmm.  That's interesting.  64 happens to be the square of 8 . 
Do you think that might be all there is to it ?

Let's check it out:

Even-numbered lists of odd numbers:

1, 3                                   Items = 2, Sum = 4
1, 3, 5, 7                           Items = 4, Sum = 16
1, 3, 5, 7, 9, 11                 Items = 6, Sum = 36
1, 3, 5, 7, 9, 11, 13, 15 . . Items = 8, Sum = 64 .

Amazing !  The sum is always the square of the number of items in the set !

For a sum of 400 ... which just happens to be the square of 20,
we just need the <em><u>first 20 consecutive odd numbers</u></em>.

I slogged through it on my calculator, and it's true.

I never knew this before.  It seems to be something valuable
to keep in my tool-box (and cherish always).


3 0
3 years ago
If the mean of a given data set is 56 and the standard deviation is 10
aleksley [76]

Answer:

5.6 divided by  10

  =5.6

Step-by-step explanation:

5 0
3 years ago
Choose the formula for the volume of a cone V=1/3
mote1985 [20]
If you know the cone volume and the cone radius, then
height = 3*Volume / PI * r^2

answer is D


3 0
3 years ago
Can someone help with this, please? :)
Sladkaya [172]

Answer:

answer is D i believe

Step-by-step explanation:

8 0
3 years ago
The area of a rectangular pool deck is 168 feet the length is 14 feet what is the width of the pool deck
Hitman42 [59]

Answer:

12 ft

Step-by-step explanation:

Area = Length * Width

168 = 14 * W

168/14 = W

W = 12 ft

7 0
2 years ago
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