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Nutka1998 [239]
4 years ago
6

A 7 digit code can’t start with a 1 or 2 and no numbers can be repeated. how many different codes are possible?

Mathematics
1 answer:
babunello [35]4 years ago
4 0

Answer:

9 is correct

Step-by-step explanation:

please tell fast plzzzzzz

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For safety reasons, the manufacturer of a ladder recommends that it be used in such a way that the base of the ladder is no fart
professor190 [17]
See attached picture for better understanding of the problem. In the problem, the given values are the following:
hypotenuse = length of the ladder
adjacent = base of the ladder to base of the wall
Solving the angle x, we have the solution as below: 
cos x = adjacent / hypotenuse
cos x = 91 / 350
x = 74.93°

The answer is 74.93°.

6 0
3 years ago
What is the value of m that makes the equation true? 18m- 2+ 7m- 8= -60
sergij07 [2.7K]

Answer:

m = -2

Step-by-step explanation:

First, let's move all variables to one side of the equation. (Don't forget to change the signs when you move the numbers to the other side.)

18m + 7m = -60 + 2 + 8

Now we simplify to get this:

25m = -50

Now we divide -50 by 25 which gets us -2.

Therefore, m = -2

Hope this helps!

3 0
4 years ago
James wants to enlarge a photograph that is 6 inches wide and 4 inches tall so that it fits into the frame shown above. How tall
Andrej [43]
You would set up a proportion 6/4 = 30/x you then can do what i call the fish and multiply 30 by 4 and the divide by 6 which will give you x which your answer is 20 
4 0
4 years ago
John can clear a lot in 1.5 hours. His partner can do the same job in 4.5 hours. How long will it take them to clear the lot wor
Crank

Answer:

1 hour and 7.5 minutes

Step-by-step explanation:

We have the following information:

Jose makes 1 / 1.5 of the job per hour. It is his rate of work in addition to that the partner makes 1 / 4.5 of the job per hour. It is his rate of work.

Thus:

1 / 1.5 + 1 / 4.5 = 1 / x

0.8898 = 1 / x

x = 1 / 0.8888

x = 1.125

Hence, it will take 1 hour and 7.5 minutes for them to complete the job working together.

4 0
3 years ago
Describe how to regroup to solve the subtraction problem below what is the difference 456-238
Tanzania [10]

Answer:

218

Step-by-step explanation:

456 - 238 =

Borrow 1 from 5 so number is 4 4  16 - 238=

16-8 = 8 in ones' place

4 - 3 = 1 in tens' place

4 - 2 = 2 in hundreds' place

7 0
4 years ago
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