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
goblinko [34]
2 years ago
14

una compañia de relojes desea promocionar un cierto modelo de reloj de pared con motivo de su proximo aniversario. Ellos te soli

citan que diseñes una caratula para reloj, como la que se indica en la figura. el diametro de la caratula es de 20 cm. el radio de las circunferencias, coon los horarios 12, 3, 6 y 9 es de 4cm. el radio de la circunferencia que contiene el resto de los horarios es de 14cm. si dibujas la caratula sobre una cartulina escala natural y tomas como referencia un sistema de coordenadas, cuyo origen coincide con el centro de la caratula. determina las ecuaciones de las circunferencias que la componen
Mathematics
1 answer:
Annette [7]2 years ago
7 0

Queremos encontrar las ecuciones de las circunferencias que definen el reloj dado.

Las ecuaciones son:

x^2 + y^2 = 16cm^2

x^2 + y^2 =  196cm^2

Lo primero que debemos hacer para escribir una ecuacion, es definir nuestro eje de coordenadas.

Pondremos el punto (0, 0) en el centro de la cartulina.

Debemos recordar que la ecuación de un circulo de radio R centrado en el punto (a, b) se escribe como:

(x - a)^2 + (y - b)^2 = R^2

En este caso tendremos dos ecuaciones de circulos, ambas centradas en el centro de la cartulina, que es el punto (0, 0).

Para el primer caso tendremos un radio R = 4cm, que es el circulo interno que contiene las horas 12, 3, 6, y 9.

Otro de radio R' = 14cm, que contiene el resto de horas.

Entonces las dos ecuaciones de los circulos seran:

x^2 + y^2 = (4cm)^2 = 16cm^2

x^2 + y^2 = (14cm)^2 = 196cm^2

Si quieres aprender más. puedes leer.

brainly.com/question/24021353

You might be interested in
Find the mean absolute deviation
satela [25.4K]

Answer: in statistics deviation is the difference between the value of one number in a series of numbers and the average value of all numbers in the series (  i hope this helped)

Step-by-step explanation:

3 0
3 years ago
How many perfect square are there between 1,000,000 and 9,000,000?​
sp2606 [1]

Answer: 1999 perfect squares between 1,000,000 and 9,000,00

Step-by-step explanation:

Sq root of 1,000,000 is 1000 and square root of 9,000,000 is 3000

Hence there are squares of 1001 to 2999 I. e. 1999 perfect squares between 1,000,000 and 9,000,00

8 0
3 years ago
Read 2 more answers
Solve: 3 square root 8x-2=4<br> To solve this equation, first BLANK both sides
SpyIntel [72]

Answer:

Cube

X =8.25

Step-by-step explanation:

6 0
3 years ago
56 books; 75% decrease
suter [353]
75% of 56 is .75 * 56
.75 * 56 = 42
Because you are decreasing, you subtract 42 from 56.
56 - 42 = 14
A 75% decrease of 56 books would leave 14 books.
6 0
3 years ago
Read 2 more answers
A box's volume is equal to 600 cubic
olga2289 [7]

Answer:

Step-by-step explanation:

Length = x

width = x - 7

height = x - 10

volume = 600 in^3

Volume = L * w * h

600 = x * (x - 7)*(x - 10)

600 = x * (x^2 - 17x + 70)

600 = x^3 - 17x^2 + 70x

x^3 - 17x^2 + 70x - 600 = 0

There is a genius somewhere that could solve this using algebra. The rest of us have 2 choices. We can graph it (see below) or we could use a program that solves it for us. I'll do both for you.

a = 1

b  = - 17

c = 70

d = - 600

There is only 1 real solution: x = 15

L = 15

w = 8

h = 5

That has to be one of the ugliest graphs made. It does into the hundreds of thousands and it still looks like a straight line. Trust me. It's not.

3 0
3 years ago
Other questions:
  • Della bought a tree seedling that was 2 1/4 feet tall. During the first year, it grew 1 1/6 Feet. After two years, it was 5 feet
    10·1 answer
  • A store buys shirts for 12$ each and marks up the price by 25%.What is the price for a shirt at this store?
    6·2 answers
  • Solve this quadratic equation using the quadratic formula. 2x2 - 10x + 7 = 0
    10·1 answer
  • You by a t shirt at the fair that costs the owner $12,but your markup is 30%. Tax is 7%. How much money do you owe
    9·1 answer
  • 15 is what percent of 25?
    13·1 answer
  • What is 11 - 10 <br> HELP HURRY PLEASE ANSWER QUICK
    8·1 answer
  • Right inequalities to represent the situations below to get the 10% discount a shopper must spend at least $300 USD to represent
    11·1 answer
  • Write a positive or negative integer that represents the situation.
    9·1 answer
  • Solve for b, Round to the hundreth<br> 28b^3 = 2165
    6·2 answers
  • Help pls my life depends on it
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!