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1 month ago

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A Store-It-All storage facility requires users to enter a four digit code, using numbers 0-9, to get through the gate. You need

to get a box of winter clothes from your storage container, but you forgot the code.
How many possible codes are there if th digits cannot be repeated ?

What is the probability that you will guess the correct code on your first try ?

If the digits can be repeated , how many possible codes are there ?

1 answer:

tester [12.3K]1 month ago

6 0

Answer:

Copy the content and paste it into Google; there's a website with the information I discovered, but it's too lengthy for me to copy here.

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Bridgette opened a store credit card to purchase a business suit for $463. She put the entire purchase on the credit card. Her A

Inessa [12570]

Begin by determining the monthly interest rate as follows:
$\frac{14.99}{12}=1.25$
<span>Each month, we deduct the monthly rate and the 5% payment from $463, leading to the following formula:</span>
$463(1-(0.05+0.0125))^3=463\times0,9375^3\\=381.5$
<span>
Therefore, after three months, Bridgette will have a remaining balance of $381.5 in her account.</span>

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1 month ago

If 30,000 cm2 of material is available to make a box with a square base and an open top, what is the largest possible volume (in

Inessa [12570]

Answer:

The highest achievable volume for the box is 2000000 cubic meters.

Step-by-step explanation:

Below is an outline of the volume ( $V$ ), measured in cubic centimeters, and surface area ( $A_{s}$ ), measured in square centimeters, for a box featuring a square base:

$A_{s} = l^{2}+h\cdot l$ (1)

$V = l^{2}\cdot h$ (2)

Where:

$l$ - The length of the base's side, in centimeters.

$h$ - The height of the box, in centimeters.

Using (2), we isolate $h$ in the formula:

$h = \frac{V}{l^{2}}$

Then, we substitute into (1) and simplify the outcome:

$A_{s} = l^{2}+ \frac{V}{l}$

$A_{s}\cdot l = l^{3}+V$

$V = A_{s}\cdot l -l^{3}$ (3)

Next, we calculate the first and second derivatives of this expression:

$V' = A_{s}-3\cdot l^{2}$ (4)

$V'' = -6\cdot l$ (5)

If $V' = 0$ and $A_{s} = 30000\,cm^{2}$ , then we find that the critical value for the base's side length is:

$30000-3\cdot l^{2} = 0$

$3\cdot l^{2} = 30000$

$l = 100\,cm$

Subsequently, we assess this outcome using the second derivative's expression:

$V'' = -600$

According to Second Derivative Test, this critical value signifies an absolute maximum. Consequently, the largest volume obtainable for the box is:

$V = 30000\cdot l - l^{3}$

$V = 2000000\,cm^{3}$

The highest achievable volume for the box is 2000000 cubic meters.

4 0

15 days ago

Let P be a point not on the line L that passes through the points Q and R. The distance d from the point P to the line L is d =

AnnZ [12381]

Answer:

The distance from the point (0,1,1) to the specified line is zero.

Step-by-step explanation:

Considering the parametric equations of the line,

x=2t, y=5-2t, z=1+t

In order to calculate the distance from (0,1,1), we must remove t from the equations above, such that

$y=5-2t=5-x\implies x+y=5=4+1=4+z-t=4+z-\frac{1}{2}x$

$\implies 3x+2y-2z-8=0\hfill (1)$

whose direction ratios are (l,m,n)=(3,2,-2) and the distance from point (a,b,c)=(0,1,1) is defined as

$\frac{al+bm+cn}{\sqrt{l62+m^2+n^2}}=\frac{(3\times 0)+(2\times 1)+(-2)(1)}{\sqrt{3^2+2^2+(-2)^2}}=\frac{0+2-2}{\sqrt{17}}=0$

The distance between the point (0,1,1) and (1) amounts to zero. Therefore, the point (0,1,1) is located on the line (1).

8 0

1 month ago

Express 1120 product of powers of its prime factors

babunello [11817]

5x2x2x2x2x7x7

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21 day ago

Jack bought 4 dozen eggs at k10 per dozen. 6 eggs were broken .what percent of his money goes waste?

zzz [12365]

Step-by-step explanation:

I hope this meets your requirements.

PLEASE MAKE ME BRAINLIEST

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1 month ago