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Oxana [17]
3 years ago
5

In how many ways can 4 different contracts be distributed among 12 different firms, if no two contracts are awarded to the same

firm?
Mathematics
1 answer:
vagabundo [1.1K]3 years ago
5 0

The first contract can go to any of 12 firms. The second can go to any of the remaining 11 firms, and so on. Finally, the 4th contract can go to any of the 9 firms that don't yet have a contract.

The number of ways the contracts can be awarded is

... 12×11×10×9 = 11,880

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The greater of two consecutive integers is 20 more than twice the smaller. find the integers.
Kipish [7]

Let x represent the smaller. Then x+1 is the greater of the two.

... x+1 = 2x +20

... 0 = x + 19 . . . . . subtract x+1

... x = -19

Your two integers are -19 and -18.

7 0
3 years ago
Pls help this is due very soon
Viefleur [7K]
10x16 = 160 cm

160x 3.14 = 502.4 cm

502.4 ≈ 500 cm

7 0
3 years ago
Read 2 more answers
Anna walks at a constant rate of 8 miles every 2 hours Graph a line to show the relationship between the time in hours, 1 and th
stiks02 [169]

Answer:

We see that the only complete time-distance pair indicates that she walked 6.4 miles in 2 hours. If she walked at a constant speed, we can conclude that girl walked 3.2 miles in 1 hour. Using this speed, we can find the remaining values in the table. The easier entry to complete is finding out how far she walked in 5 hours: 5 hours⋅3.2 miles/hour=16 miles. To find out how long it took to walk 8 hours we can either notice that 8 is half of 16, so it took half the time to walk half the distance or we can divide 8 miles by 3.2 miles per hour to find that it took 2.5 hours

Step-by-step explanation:

8 0
3 years ago
Question 4 <br> please help me and show working out
zimovet [89]
B 12:3 = 4-1=3 C 10- 7=3 And A 2+15x=x=15-2=13
3 0
3 years ago
How do I solve these for example 3
Natasha2012 [34]
As the three longitudinal lines are parallel:

angle 4 = 5 = 6 = 82 degree (corresponding angles) = 9 = 8 = 7 = 82 degrees (vertical angles)

and

angle 11 = 180-82= 98 degrees (linear pair)

so:

angle 10 = 11 = 12 = 98 degrees (corresponding angles) = 3 = 2 = 1 = 98 degrees (vertical angles)
.


hope you got it
8 0
3 years ago
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