1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marshall27 [118]
3 years ago
15

How many 4 digit codes are possible if the first digit cannot be 0 and digits can be repeated?

Mathematics
1 answer:
bezimeni [28]3 years ago
4 0

Answer: 9,000

Step-by-step explanation: there are 9 number options for the first digit and 10 for the other 3, so 9x10x10x10=9000

You might be interested in
Carter digs a hole at a rate of 3/4 feet every 10 minutes. After digging for 30 minutes, Carter places a bush in the hole that f
Kobotan [32]

Answer:

the calibration of the system

Step-by-step explanation:

7 mobiles

6 0
2 years ago
En qué se convierte este punto geométrico​
ra1l [238]
Cual punto geométrico amigo
8 0
3 years ago
Pls help ASAP luv ya
Nesterboy [21]
315.5072



















Hope this helps
5 0
2 years ago
Para una acera de 2.50m de ancho, la altura de la rampa construida no debe exceder los 20m ¿Cuál es la pendiente de la rampa con
leonid [27]

Answer:

20.16  meters

82.77º

Step-by-step explanation:

We have that the ramp would have the shape of a rectangular triangle, where the height and width would be the legs and the slope the hypotenuse.

We can solve it by means of the Pythagorean theorem that tells us:

c ^ 2 = a ^ 2 + b ^ 2

a = 2.5 and b = 20, replacing:

c ^ 2 = 2.5 ^ 2 + 20 ^ 2

c ^ 2 = 406.25

c = 20.16

Therefore the slope would be 20.16 meters.

The angle, we will do it using the function: Sin A ° = opposite / hypotenuse

where the opposite is the height, that is to say 20 and the hypotenuse that is the slope is equal to 20.16, replacing:

Without Aº = 20 / 20.16

Without Aº = 0.992

 Aº = arc sin (0.992)

 Aº = 82.77

Which means that the angle is of the slope with the horizontal is 82.77º

7 0
3 years ago
In this 3-dimensional figure, all angles are right angles. Plane ABF and plane FHG are __________
Ipatiy [6.2K]

Answer:

perpendicular..I think so

7 0
2 years ago
Other questions:
  • What is 360 divided by 12
    15·1 answer
  • In which quadrant does a -285 angle lie
    11·1 answer
  • Forty-two times twenty-seven
    11·2 answers
  • Is the first one correct and what are the ages? Thanks
    8·1 answer
  • The temperature falls from 3 degrees Celsius to -4 degrees celcius what is the the difference in these temperatures
    14·1 answer
  • Can someone help with this question
    11·1 answer
  • Fill in the blank with the correct inequality symbol​
    11·1 answer
  • What is the volume of a rectangular prism that is 8 m long, 7 m wide, and 5 m tall?
    6·1 answer
  • A lawn mower company wants to show how much time a homeowner can save by using a ride-on lawn mower instead of a push lawn mower
    14·1 answer
  • What are the intercept of 2X+3y= 6z=30
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!