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3 years ago

How many four-digit numbers can be created using the digits 0-9? Note: A number cannot be repeated for different digits.

Mathematics

2 answers:

Svetradugi [14.3K]3 years ago

6 0

6,561 is the right answer but good luck

defon3 years ago

6 0

Answer:i think it would be A.10,000

Step-by-step explanation:

There are 10,000 possible combinations that the digits 0-9 can be arranged into to form a four-digit code.

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3*-2+2y=10yopbdudhdhd

GuDViN [60]

You start out with 3*-2+2y=10
Simplify and you get 2y-6=10
Add 6 to both sides. 2y=16
Divide both sides by 2. Your answer is y=8.

3 0

4 years ago

Dani is training for a marathon. Her target speed is 25 miles per hour. She currently runs 15 miles in 1/2 an hour. Does she ach

marissa [1.9K]

Answer:

target speed for the marathon has been achieved and exceeded

Step-by-step explanation:

Given that :

Target speed = 25 mph

Current speed = 15 miles in 1/2 an hour

Current speed :

15 miles in 0.5 hours

X miles in 1 hour

0.5x = 15 miles

X = 15 / 0.5

X = 30 miles per hour

Hence, current speed in miles per hour = 30mph

This means that her target speed for the marathon has been achieved and exceeded

7 0

3 years ago

6 quarts equals how many liters?

Nata [24]

1 qt = .946 liters

6 qts = 6* .946 ltrs

= 5.676 liters

6 0

4 years ago

Read 2 more answers

Hey guys I don’t understand this one so can y’all please help me? :))))

aksik [14]

Answer:

11) c = 16.1

12) c = 11.4

Step-by-step explanation:

11)

a² + b² = c²

8² + 14² = c²

64 + 196 = c²

c² = 260

$\sqrt{c^2} =\sqrt{260}$

c = 16.1

12)

a² + b² = c²

7² + 9² = c²

49 + 81 = c²

c² = 130

$\sqrt{c^2} =\sqrt{130}$

c = 11.4

6 0

3 years ago

Read 2 more answers

It is estimated that the population of the world is increasing at an average rate of 1.09%. The population was about 7,632,819,3

morpeh [17]

Answer:

The equation that represents the population after T years is

$P_{t} = 7,632,819,325 [1 +\frac{1.09}{100} ]^{T}$

Step-by-step explanation:

Population in the year 2018 ( P )= 7,632,819,325

Rate of increase R = 1.09 %

The population after T years is given by the formula

$P_{t} = P [1 +\frac{R}{100} ]^{T}$ -------- (1)

Where P = population in 2018

R = rate of increase

T = time period

Put the values of P & R in above equation we get

$P_{t} = 7,632,819,325 [1 +\frac{1.09}{100} ]^{T}$

This is the equation that represents the population after T years.

6 0

3 years ago