Which of the following is less than 7/8 and greater than 1/3

Mary must choose a new password where the first and last choices are possibly repeated lowercase letters; the second and third

Salsk061 [2.6K]

The number of ways she can choose a password is 3986236800

<h3>In how many ways can she choose a password?</h3>

The given parameters and the possible selection of characters are:

First and last choices are possibly repeated lowercase letters;

There are 26 lower characters.

Since the characters can be repeated, then we have

First = 26

Last = 26

The second and third positions must be distinct uppercase letters

There are 26 upper characters.

Since the characters are distinct, then we have

Second = 26

Third = 25

The fourth position must be a # , $, or & symbol;

So, we have

Fourth = 3

The next four positions are distinct nonzero digits.

There are 9 nonzero digits.

Since the digits are distinct, then we have

Next = 9, 8, 7, 6

The number of ways she can choose a password is

Ways = First * Second * Third * Fourth * Next * Last

So, we have

Ways = 26 * 26 * 25 * 3 * 9 * 8 * 7 * 6 * 26

Evaluate the product

Ways = 3986236800

Hence, the number of ways she can choose a password is 3986236800

Read more about combination at:

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4 0

1 year ago

Help me please......

lukranit [14]

Answer:

I was told it was D

Step-by-step explanation:

4 0

2 years ago

Solve the following problem then write your answer before the number.

Triss [41]

Answer:

1) Rizza's average speed is 27 km/h.

2) The distance between Barretto and Pampanga is 294 km.

3) Aaron's journey was 3.5 hours long.

Step-by-step explanation:

1) Time taken to cove the distance = 20 minutes

60 minutes = 1 hour

So that, 20 minutes = $\frac{20}{60}$ hours

= $\frac{1}{3}$ hours

Distance covered = 9 km

But,

speed = $\frac{distance covered}{time taken}$

Rizza's average speed = 9 ÷ $\frac{1}{3}$

= 9 x 3

= 27 km/h

Rizza's average speed is 27 km/h.

2) Time taken = 3.5 h

the car's average speed = 84 km/h

Distance between Barretto and Pampanga = average speed x time taken

= 84 km/h x 3.5 h

= 294 km

The distance between Baretto and Pampanga is 294 km.

3) The uniform speed implies that Aaron did not accelerate during his journey.

Distance covered = 210 km

uniform speed = 60 km/h

time taken = $\frac{distance covered}{speed}$

= $\frac{210}{60}$

= 3.5 hours

Aaron's journey was 3.5 hours long.

6 0

2 years ago

Simplify the expression<br><img src="https://tex.z-dn.net/?f=5%28%20%5Cfrac%7B1%7D%7B5%7D%20x%20-%201%29%285x%20-%20%20%5Cfrac%7

stira [4]

The answer is (25x-1) (x-5)/5

6 0

2 years ago

How do you put coordinates into slope intercept form?

PIT_PIT [208]

Draw a graph with integer lines going vertical and horizontal. Make sure the integer lines have all the numbers in the coordinates. Find where the numbers line up on the graph.

5 0

2 years ago