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Studentka2010 [4]
3 years ago
12

How many ways can six kids line up in a single row to have their picture taken?

Mathematics
1 answer:
Elina [12.6K]3 years ago
4 0
Slot method aka permuations
6 slots
1st slot: 6 options
2nd slot: 5 options (1 went to first slot)
3rd slot: 4
4th slot:3
5th slot:2
6th slot:1

multiply
6*5*4*3*2*1=720

720 ways
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How do i solve 7 - n = 27
LuckyWell [14K]
add 7 to 27 which equals 34
6 0
3 years ago
Read 2 more answers
DUPLICATE. WITH ATTACHMENTS
Inessa05 [86]
7.) Area of a square pyramid is given by A = s^2 + 2sl; where s is the side length of the base and l is the slant height.
Area of given pyramid = 4^2 + (2 x 4 x 7) = 16 + 56 = 72 ft^2

8.) Area of the given pyramid is the area of the hexagonal base plus the area of the six slant triangles.
Area of hexagonal base = (3sqrt(3))/2 x 10^2 = 150 x 1.732 = 259.8
Area of the 6 traingles = 6(1/2 x 10 x 13) = 6 x 65 = 390
Total surface area of the pyramid = 259.8 + 390 = 649.8 ≈ 650 m^2

9.) Using pythagoras rule, the slant height is sqrt(6^2 + 3.5^2) = sqrt(36 + 12.25) = sqrt(48.25) = 6.9 mm

10.) The surface area of a cone is given by πr^2 + πrl
Area = π x 6^2 + π x 6 x 20 = 36π + 120π = 490.1 cm^2

11.) l = sqrt(r^2 + h^2) = sqrt(11^2 + 16^2) = sqrt(121 + 256) = sqrt(377) = 19m
6 0
3 years ago
Will mark as brainlist
lara [203]

Step-by-step explanation:

Tn=ar^(n-1)

r=-10/-5=2

a=-5

Tn=-5×(2)^(n-1)

Tn=-5•(2)^(n-1)

an=5•(2)^(n-1)

7 0
2 years ago
Solve the amount in picture
ss7ja [257]
It’s 2/25 because 24 x 1/3/100 and you simplify the complex fraction so it’s 24 x 1/300 now reduce the numbers with the greatest common factor 12 so now it’s 2x1/25 then calculate the product 2/25
5 0
2 years ago
Need help, please.............................
Bogdan [553]

Answer:

i DON'T KNOW THE ANSWER

Step-by-step explanation:

I DONT KNOW THE ANSWER ALL I KNOW IS TO USE BATMAN IF YOU KNOW WHAT THAT IS AND YEAH YOU WILL FIND THE ANSWER

4 0
3 years ago
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