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kenny6666 [7]
3 years ago
6

GIVING BRAINLIST

Mathematics
2 answers:
gtnhenbr [62]3 years ago
3 0
The answer is A.30.
vodka [1.7K]3 years ago
3 0

Answer:

30

Step-by-step explanation:

You might be interested in
Review the two box and whisker plots:
Ber [7]

Answer:

Male students have a greater median.

Step-by-step explanation:

The median is the bold line (look at the attached image)

The male's median is greater than 60.

The female's median is less than 60.

Hope that helps!

7 0
2 years ago
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
Using the following diagram, tick the correct angles which are congruent to the angles given in the first column.
bulgar [2K]

Answer:

Step-by-step explanation:

Angle 1 = 1, 3, 5, 7

Angle 3 = 1, 3, 5, 7

Angle 4 = 2, 4, 6, 8

Pretty much just look at the congruent symbols and you can figure it out.

7 0
3 years ago
PLEASE HELP FAST 50 POINTS!!
Pepsi [2]

Answer:

edit: adjacent angles

Step-by-step explanation:

hope this helps

5 0
3 years ago
Read 2 more answers
Kelly is selling magazine subscriptions as part of a school fundraiser during the first 72 days of the fundraiser kelly sold 56
Anettt [7]

Kelly sells 52 subscriptions every 72 days, therefore,

216 / 72 = 3.

52 * 3 = 156

Kelly sells 156 subscriptions every 216 days

3 0
3 years ago
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