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polet [3.4K]
3 years ago
10

Find the sum of the smallest 7- digit number and largest 4-digit number​

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
7 0

1009999

Hope it helps you...

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How many different 4 digit even numbers can be written using 0,5,6,3,8,7?<br><br> help asap please!!
fiasKO [112]

Step-by-step explanation:

I guess that means the digits can not be repeated in such a number.

let's start with how many numbers in general can be created :

we have 6 basic digits, and we are pulling 4 of them for a number.

if the sequence of the pulled digits would not matter, it would be combinations C (6, 4).

but we are creating different numbers, so the sequence of the digits does matter. so, it is permutations P (6, 4).

P(6, 4) = 6!/(6-4)! = 6!/2! = 6×5×4×3 = 360

so. bauxite, we can create 360 different 4 digit numbers out of these 6 digits.

but not all of them are wanted.

for example, I assume we don't want the numbers that start with a 0, because they would normally count as 3-digit numbers.

if that assumption is correct, we need to find how many would start with a 0, and subtract those from the total number.

since we are handling all 6 digits in the same way, an equal number must start with 0, with 5, with 6, with 3, with 8 and with 7.

so, 1/6 of the total number start with 0 : 360×1/6 = 60.

that means the total number of 4-digit numbers out of these 6 digits that do not start with 0 is 360-60 = 300.

but we are still not finished : we only want even numbers. that means they end with 0, 6 or 8.

in the same way we considered the first position, we consider also the last position. we have an equal amount of numbers that end with the different digits.

and so, we have 1/6 of 300 for each ending digit.

we want the specified 3 digits as end digits, so we get

3×1/6 of the 300 = 1/2 × 300 = 150

so, we can write 150 different 4-digit even numbers out of these 6 digits.

3 0
2 years ago
Knowing that ΔQPT ≅ ΔARZ, a congruent side pair is:
Travka [436]
I would say the answer is A.
8 0
3 years ago
Read 2 more answers
Two rays that intersect at their initial point.
dolphi86 [110]
That is called an angle.
4 0
3 years ago
Read 2 more answers
A store sells a coat in three sizes: small, medium and large. The coat comes in red, navy, and tan. Sales numbers are shown in t
QveST [7]

Answer:

Next coat sold as medium: 68/190 (35.79%) Rounded to the nearest hundredth) or reduced fraction form of 34/95.

Step-by-step explanation:

Red Medium: 21/58 ( 36.21%)

Navy Medium: 22/66 (33.33%

Tan Medium: 25/66 (37.88%)

Since it's asking for the probability that the next coat is a medium, no matter the color, we add in all numbers and divide it by the added medium from all three colors.

Next coat sold as medium: 68/190 (35.79%) Rounded to the nearest hundredth) or reduced fraction form of 34/95.

7 0
3 years ago
Find the BASE of a triangle if its height is 14 inches and the area is 245 square inches. *
Andrew [12]

Answer:

36.29in

Step-by-step explanation:

well in an equation it is 245=1/2bh, b being base and h being height.

h is 14 for the first step is to do 14x1/2=7

the new equation is 245=7b. 245 divided by 7 is 36.2857142857. Rounded that is 36.29

b=36.29

3 0
2 years ago
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