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igor_vitrenko [27]

3 years ago

7

jill is thinking of a new password for her phone. She wants to use the numbers 7, 1, and 8. How many different passwords could s

he make with these numbers?

1 answer:

lara31 [8.8K]3 years ago

3 0

7 1 8 You can also calculate this using the Fundemental Counting Principle, just do 3*2*1 which is 6 passwords
7 8 1
8 1 7
8 7 1
1 7 8
1 8 7

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Solve 3 -x = 243 -5 1/5 5

Paraphin [41]

Answer:

$x=-243$

Step-by-step explanation:

The equation is

$-3^{-5}=\frac{1}{x}$

Solve for x

we know that

$-3^{-5}=-\frac{1}{3^{5}}=-\frac{1}{243}$

substitute

$-\frac{1}{243}=\frac{1}{x}$

so

$x=-243$

3 0

3 years ago

Read 2 more answers

For his craft project, James bought 1010 10 10 pieces of ribbon that were each 2.1 feet2.1\text{ feet} 2.1 feet 2, point, 1, sta

BlackZzzverrR [31]

Answer:

<h2>Total yards of ribbon bought is 6.993yards of ribbon</h2>

Step-by-step explanation:

Total pieces of ribbon James bought for his craft project = 10pieces. If each pieces of ribbon were 2.1feet long, the total number of feet for 10ribbons is expressed as;

$= 10 * 2.1\\= 21feets$

Converting 21 feets to yards;

1 feet = 0.333yard

21feets = x

x = $21feet * 0.333\\= 6.993yards$

Total yards of ribbon bought is 6.993yards of ribbon

3 0

2 years ago

Which two expressions is equivalent to 8(5+x)

Natali [406]

Answer: 8(x+5) 8x + 40

40 + 8x

Step-by-step explanation:

Distribute the 8 by multiplying by each value inside the parentheses.

Commutative property in addition and multiplication allows the terms to be in reversed order.

4 0

2 years ago

Human heights are one of many biological random variables that can be modeled by the normal distribution. a 2002 study in the us

Rama09 [41]

To answer this item, find first the z-score of the given data.

z-score = (x - m) / d

where x is data point, m is the mean and d is the standard deviation

Substituting the given values,

z-score = (188 - 176.7) / 9.9 = 1.14

This translates to a percentage of 87.29%.

Because we are asked of the percentage of those with height greater than this, that would be,
100 - 87.29% = 12.71%

Answer: 12.71%

3 0

3 years ago

Help plz and check just to make sue what is this

padilas [110]

use cross products to solve

5* (n-9) = 8*n

distribute

5n-45 = 8n

subtract 5n from both sides

-45 = 3n

divide both sides by 3

-15 = n

3 0

2 years ago