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madreJ [45]
2 years ago
11

How many different 5-digit PIN codes are there that only include the digits 3, 4, 5, 6, 7, 8 and 9 if each of those digits is on

ly allowed to be used once?
Mathematics
1 answer:
kipiarov [429]2 years ago
6 0

Answer:

the number of ways to form a 5 digit pin using the given digits is 720

Step-by-step explanation:

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The wavelength of red light in a spectrum is about 0.0000007 meters. Which
Nana76 [90]

Answer:

0.0000007

And if we count the number of zeros before the number 7, we can rewrite the number like this:

7x10^{-7}

We cansolve this problem also counting the number of positions that we need to move the decimal point to the right in order to obtain the first number (7)

And the best option would be:

B. 7 x 10-7

Step-by-step explanation:

For this case we have the following number given:

0.0000007

And if we count the number of zeros before the number 7, we can rewrite the number like this:

7x10^{-7}

We cansolve this problem also counting the number of positions that we need to move the decimal point to the right in order to obtain the first number (7)

And the best option would be:

B. 7 x 10-7

8 0
2 years ago
The shoe store’s clerks are paid on commission. If the clerk receives a 12% commission on total purchase amounts before tax is a
natka813 [3]

Answer:

7.11 and 9.48

Step-by-step explanation:

.12 is equal to 7.11

with out coupon

.12 is equal to 9.48

with the coupon

<em>hope the answer helped:)</em>

5 0
3 years ago
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5x+3(3x−43)=............
Anvisha [2.4K]
14x - 129 (I think I’m so sorry if it’s wrong)
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3 years ago
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PLEASE HELP WILL MARK BRAINLIEST
mote1985 [20]

Answer:

Step-by-step explanation:

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6 0
3 years ago
Match the phenomenal expression on the left with the simplified version on the right
nalin [4]

Given the polynomial expression:

(y + 5)²

(y - 5)(y + 5)

Let's simplify each of the given expression:

a.) (y + 5)²

The given equation is a factor of a perfect square trinomial. For this type of expression, the following is the formula for expanding it.

\text{ (a+b)}^2\text{ = }a^2\text{ + 2ab + }b^2

We get,

\mleft(y+5\mright)^2=(y)^2+2(y)(5)+(5)^2(y+5)^2=y^2+10y+25

b.) (y - 5)(y + 5)

To be able to simplify the following expression. We will be using the formula for the difference of two squares.

(a+b)(a-b)=a^2-b^2

We get,

\mleft(y-5\mright)\mleft(y+5\mright)=(y)^2-(5)^2(y-5)(y+5)=y^2-25^{}

8 0
1 year ago
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