Ask question

Ask question

All categories

4 years ago

14

A new computer owner creates a password consisting of two characters. the first character is a letter of the alphabet and the se

cond character is a digit (0,1,2,3,…,9). how many different passwords are possible?

1 answer:

hichkok12 [17]4 years ago

3 0

The number of letters is 26 in the English alphabet.

The number of digits from 0 ... 9 is 10

Therefore he can create 26 * 10 = 260 different passwords. <<<< Answer

You might be interested in

Can someone help with this question

Katena32 [7]

Answer:

It is the 3/11.

Step-by-step explanation:

When changed to decimal form, the answer is

.2727272727272727272727272............

Hope this helps!

3 0

4 years ago

Why does it take 30 years to pay off 1500,00 loan, even though you pay 1000 a month?

noname [10]

I have to do a lot of stuff to do this in the time of time I have to do a lot of work to do this really

3 0

4 years ago

Read 2 more answers

Pls help. I don't understand it.

STatiana [176]

Answer:

$\leq$

Step-by-step explanation:

No more than 13 people

5 0

3 years ago

Select the two values of x that are roots of this equation.<br> X2 + 2x - 5 = 0

LenaWriter [7]

Answer:

$x=-1+\sqrt{6 }$

$x=-1-\sqrt{6 }$

Step-by-step explanation:

$x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

Ignore the A before the ±. It wouldn't let me type it correctly.

x² + 2x - 5 = 0

a = 1

b = 2

c = - 5

$x=\frac{-2±\sqrt{2^{2}-4((1)(-5)) } }{2(1)}$

$x=\frac{-2±\sqrt{4-4((1)(-5)) } }{2(1)}$

$x=\frac{-2±\sqrt{4+20 } }{2(1)}$

$x=\frac{-2±\sqrt{24 } }{2}$

$x=\frac{-2±\sqrt{(2)(12) } }{2}$

$x=\frac{-2±\sqrt{(2)(2)(6) } }{2}$

$x=\frac{-2±\sqrt{(2)(2)(2)(3) } }{2}$

$x=\frac{-2±(\sqrt{2} )(\sqrt{2})(\sqrt{(2)(3) )} }{2}$

$x=\frac{-2±2\sqrt{6 } }{2}$

Two separate equations

$x=\frac{-2+2\sqrt{6 } }{2}$

$x=\frac{-2-2\sqrt{6 } }{2}$

$x=-1+\sqrt{6 }$

$x=-1-\sqrt{6 }$

7 0

3 years ago

What is the product of 5.86 × 10–7 and 3.1 × 104 1. Write the expression: (5.86 × 10–7)(3.1 × 104) 2. Rearrange the expression:

Reil [10]

Answer:

The value of the exponent of the base 10 for this product is -2.

Step-by-step explanation:

$5.86\,\,10^{-7}\,\,*\,\,3.1\,\,10^4=18.166\,\,10^{-7+4}=18.166\,\,10^{-3}$

Now, in order to represent this number in scientific notation, we need to reduce the coefficient 18.166 to a coefficient larger or equal to 1 and smaller strictly than 10, by using division or multiplications by powers of 10. In order to reduce it to 1.8166, we need to divide the original 18.166 by ten so we do the following in order not to change the given number (multiply and divide by ten at the same time):

$\frac{18.166\,\,10}{10} \,10^{-3}=1.8166\,*\,10\,*\,10^{-3}=1.8166\,\,10^{-2}$

3 0

4 years ago

Read 2 more answers