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11Alexandr11 [23.1K]
3 years ago
12

To use your debit card at a pay-at-the-pump system, you have to enter a four-digit personal identification number (PIN). How man

y different possible PINs can be formed on the 10-digit keypad? (Repetition is not allowed.)
Mathematics
1 answer:
nydimaria [60]3 years ago
5 0
Answer is 5040
10×9×8×7=5040
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Which of the following formulas could be used to find the area, A, of a triangle with base b and height h?
kykrilka [37]
I hope this helps you


A=Area


b=base


h=height


A=b×h/2


A=1/2.b+1/2.h
5 0
3 years ago
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Which equation has the same solution as this equation?
lesya [120]

Answer:

3rd Option is correct.

Step-by-step explanation:

Given Equation:

x² - 16x + 12 = 0

First We need to find solution of the given equation.

x² - 16x + 12 = 0

here, a = 1   , b = -16  &  c = 12

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\frac{-(-16)\pm\sqrt{(-16)^2-4(12)}}{2}

x=\frac{16\pm\sqrt{256-48}}{2}

x=\frac{16\pm\sqrt{208}}{2}

x=\frac{16\pm4\sqrt{13}}{2}

x=8+2\sqrt{13}\:\:andx=8-2\sqrt{13}

Now,

Option 1).

( x - 8 )² = 144

x - 8 = ±√144

x - 8 = ±12

x = 8 + 12 = 20   and x = 8 - 12 = -4

Thus, This is not correct Option.

Option 2).

( x - 4 )² = 4

x - 4 = ±√4

x - 4 = ±2

x = 4 + 2 = 6   and x = 4 - 2 = 2

Thus, This is not correct Option.

Option 3).

( x - 8 )² = 52

x - 8 = ±√52

x - 8 = ±2√13

x  = 8 + 2√13   and x = 8 - 2√13

Thus, This is correct Option.

Option 4).

( x - 4 )² = 16

x - 4 = ±√116

x - 4 = ±4

x = 4 + 4 = 8  and x = 4 - 4 = 0

Thus, This is not correct Option.

Therefore, 3rd Option is correct.

8 0
3 years ago
I need help with this question please
irinina [24]
The answer is 0
Let me tell you why
first plug in the numbers
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(9+7)-(4)^2
16-16
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4 0
3 years ago
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Please assist me with the domain and range of graphs​
Sphinxa [80]

Answer:  see below

<u>Step-by-step explanation:</u>

Domain represents the x-values from the smallest (furthest left) to the biggest (furthest right).

Range represents the y-values from the lowest (furthest down) to the highest (furthest up).

Interval notation: If a value is included <em>(closed dot)</em>, use a bracket [  ]

                      If a value is NOT included <em>(open dot)</em>, use a parenthesis (  )

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4. Domain: smallest x-value is -∞ (←). biggest x-value is ∞ (→)

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4 0
3 years ago
A number cube has faces labeled 1-6. What is the probability of rolling a 4 on the number cube and landing on a 2 on this spinne
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I think its A once again i THINK its A sorry if im wrong 
 
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