Write the following series in sigma notation. 7+11+15+19+23
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This is the answer this is the answer
Trey is sewing a pentagonal button into a shirt, as shown in the figure below. The button has holes at each of its 5 corners. How many different stitches would Trey need to make in order to stitch a piece of thread across every possible pair of non-adjacent holes?
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To stitch a piece of thread across every possible pair of non-adjacent holes in a pentagonal button with 5 corners, you can use the combination formula.
For a pentagon, there are 5 corners, and you want to choose 2 holes to stitch between, so it's a combination of 5 holes taken 2 at a time.
The combination formula is:
C(n, k) = n! / (k!(n-k)!)
Where: - n is the total number of items to choose from (in this case, 5 holes). - k is the number of items to choose (in this case, 2 holes).
C(5, 2) = 5! / (2!(5-2)!)
Now, calculate the combinations:
C(5, 2) = 5! / (2!(3!))
C(5, 2) = (5 * 4 * 3!) / (2! * 3!)
Now, simplify:
C(5, 2) = (5 * 4) / (2!)
C(5, 2) = (20) / (2)
C(5, 2) = 10
So, Trey would need to make 10 different stitches to stitch a piece of thread across every possible pair of non-adjacent holes in the pentagonal button.
Y^1/3(y^4/9-8y^2/9) how do you solve this
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I hope this helps you
PLEASE HELP I'LL GIVE BEAINLIEST!!!!!
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Answer:
9 2/3
Step-by-step explanation:
50=6a-8
+8 +8
58=6a
/6 /6
9 2/3=a
A sum of 17 and a difference of 5 A sum of 17 and a difference of 1
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Idk but I think maybe 17+-5
8+9=18 with difference of 1
there are 720 children in our school. 5/8 of them have dark hair. How many children have blonde or red hair?
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Assuming that the red and blonde hair are considered the 3/8ths of the school with light hair, 270 children in the school have red or blonde hair.