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2 years ago

how many four digit natural numbers can be formed using the digits 1,2,3,4 if repitition is not allowed

Mathematics

2 answers:

bija089 [108]2 years ago

7 0

24 - (4x3x2x1 = 24) look it up online if you need more verification :)

kirill115 [55]2 years ago

5 0

Your answer is 16 because there’s only 4 numbers without repetition those numbers can be used 4 times so 4x4

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A new sidewalk will be 5 feet wide, 100 feet long, and filled to a depth of 3 inches (0.25 foot) with concrete. How many cub

GarryVolchara [31]

Answer:

4.63 cubic yard.

Step-by-step explanation:

Given,

The length of sidewalk, l = 100 feet,

Width, w = 5 feet,

Depth, h = 3 inches = 0.25 feet,

Thus, the volume of the concrete needed for making the sidewalk,

$V=l\times w\times h$

$=100\times 5\times 0.25$

= 125 cubic feet,

∵ 1 cubic yard = 27 cubic feet,

⇒ 1 cubic feet = $\frac{1}{27}$ cubic yard,

Thus, the quantity of concrete needed = $\frac{125}{27}$ ≈ 4.63 cubic yard.

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3 years ago

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Vlad1618 [11]

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4 years ago

Please answer fast, will give brainliest!

9966 [12]

Answer:

the third one

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4 0

3 years ago

Linda earns $ 617 each week working her full time job.

slava [35]

Answer:

$95.00

Step-by-step explanation:

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8 0

2 years ago

Please help me out!! :D

Rudik [331]

$T_n = a_1 + d(n - 1)
$

$T_n = 52 + 12(n - 1)$

$T_n = 52 + 12n - 12$

$T_n = 40 + 12n$

When n = 102,
$T_{102} = 40 + 12(102) = 1264$

Answer: 1264

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3 years ago