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alexdok [17]
2 years ago
12

Why do people keep commenting links on brainly, stop trying to hack other folks, thanks

Mathematics
1 answer:
SVETLANKA909090 [29]2 years ago
6 0

I haven't had the courage to look it up and I won't. lol

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The numerator and denominator of a fraction are in the ratio of 3 to 5. If the numerator and denominator are both increased by 2
butalik [34]

Answer:

The correct answer is A) 5n = 3d and 3n + 6 = 2d + 4

Step-by-step explanation:

hope this is right...

6 0
3 years ago
in a five character password the first two characters must be digits and the last three characters must be letters if no charact
Vilka [71]

Answer:

1,404,000 unique passwords are possible.

Step-by-step explanation:

The order in which the letters and the digits are is important(AB is a different password than BA), which means that the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

In this question:

2 digits from a set of 10(there are 10 possible digits, 0-9).

3 characters from a set of 26. So

P_{10,2}P_{26,3} = \frac{10!}{8!} \times \frac{26!}{23!} = 10*9*26*25*24 = 1404000

1,404,000 unique passwords are possible.

5 0
3 years ago
Mr quark drove his car 314 m. in 6.5 hrs. he used 12.7 gals. of gas.find these rates gallons per mi.
miskamm [114]

Answer:

24.7 miles takes 1 gallon of gas

Step-by-step explanation:

314÷12.7=24.724409 which gets rounded to 24.7

8 0
2 years ago
Martin, Josh, and Alex are painting an office. when Martin paints in office alone it takes him nine hours to complete the room.
alukav5142 [94]

Answer:

3.25

Step-by-step explanation:

3 0
2 years ago
For any positive numbers a, b, and d, with b≠1, logb(a·d) = _____.
Katena32 [7]

Answer:

logb a* logb d

        or

logb a - logb d

             or

logb(a*d)

4 0
3 years ago
Read 2 more answers
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