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stiv31 [10]
3 years ago
6

A combination lock requires 4 selections of numbers, each from 1 to 20. • how many different combinations are there? • suppose t

hat the lock is constructed in such a way that no number maybe used twice. how many different combinations are possible?
Mathematics
1 answer:
slamgirl [31]3 years ago
6 0
NUmber of combination = 20 x 19 x 18 x 17 = 116 280

Answer:  116 280
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Subtract. [5 0 − 2]− [− 1 3 8 ] Enter your answer in the boxes. [ ]
Fiesta28 [93]

Answer:

i don't understand the question

7 0
3 years ago
15-29=
Dominik [7]

Answer:

15-29= -14

(I need the explanation most importantly)

14+(-4) - 8 =10-8=2

(Explanation please)

-8.4 - (19.5.) = - 27.9, (just add them to each other and write -, because both have - in front of them)

(Explanation)

-15 + 8 - (-19.7) = - 7+19,7=12,7 (there is + and - so it will became - 7, and at next there is two - which will turn them into +)

(Explanation)

29.45 - 56.009 - 78.2=−104,759 (all you have to is to put them all together, and than make it 29.45 less, writing - in front of them)

(Explanation)

LAST ONE

45.9 - (-9.2) + 5= 45.9+9.2+5=55.1+5=60.1 (because when there is 2 minus next to each other it will became plus)

6 0
3 years ago
Robert is writing a paper for language arts class he can write one third of the page in 1/4 of an hour at what rate is Robert wr
Mars2501 [29]
He's writing one paper every 3/4 of an hour

1/3: 15 minutes
2/3: 30 min
3/3: 45 minutes

Or, one paper every 45 minutes/ 3/4 of an hour
7 0
3 years ago
Which systems of equations intersect at point A in this graph?
Svet_ta [14]

Y = 4 x - 9

y = - 3 x - 5

I hope this will help you

i looked this up and this is what i got

6 0
2 years ago
Helppp!!!! please!!!
Anna007 [38]

Answer:

608 ft^2

Step-by-step explanation:

The formula for calculating surface area of a triangular prism is

bh + 2ls + lb (b : base, h : height, l : length)

12×8 + 2×16×10 + 16×12 = 608 ft^2

7 0
3 years ago
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