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
Akimi4 [234]
3 years ago
15

WILL GIVE BRAINLEST ! hAVE A GOOD DAy :)!

Mathematics
1 answer:
NeX [460]3 years ago
7 0
√84= √4•√21= final answer is
±2√21
You might be interested in
Why is the product of two rational numbers always rational?
Mice21 [21]

Let a/b and c/d represent two rational numbers. This means a, b, c,and d are INTEGERS , and b and d are not 0. The product of the numbers is ac/bd , where bd is not 0. Both ac and bd are INTEGERS , and ​ bd ​ is not 0. Because ​ ac/bd ​ is the ratio of two INTEGERS, the product is a rational number.

\frac{a}{b}\cdot \frac{c}{d}= \frac{a\cdot c}{b\cdot d}=\frac{e}{f},\,\,\,\,e,f\in\cal{Z}

7 0
4 years ago
Read 2 more answers
Help ASAP please! Really am struggling with this topic
Travka [436]
I dont have an answer buy i need to answer a question so i can ask my question sry
7 0
4 years ago
Read 2 more answers
Mario vende dos autos a 30 000 dólares cada uno. En la venta de uno ganó el 20% y en la
Mariana [72]

Answer:

Mario perdió dinero, perdió 2500 dólares

Step-by-step explanation:

En el primer caso, Mario está vendiendo su carro en 30 000 dólares. En otras palabras, el precio de venta es 30 000. Te dice que en el primer carro ganó 20%, o sea que su precio de venta es una incógnita que llamaremos x y gano 20% de x. Podemos expresarlo de esta manera

x = precio de compra carro 1

x + (20% de x) = 30 000

x = 100 % de x

(100% de x) + (20% de x) = 30 000

120% de x =30 000

120% = 1.2

1.2x = 30 000

x = 25 000

El segundo caso es bastante parecido. Te indica que el precio de venta sigue siendo el mismo, pero el precio de compra es diferente. El precio de venta sigue siendo 30 000, pero el precio de compra del segundo carro esta vez será "y". En este caso, pierde 20% del precio de compra, o osea, pierde 20% de y. Se puede expresar de la siguiente manera:

y = precio de compra carro 2

y - (20% de y) = 30 000

y = 100% de y

(100% de y) - (20% de y) = 30 000

80% de y = 30 000

80% = 0.8

0.8y = 30 000

y= 37 500

Entonces tenemos que el precio de compra del carro uno es 25 000 dólares y el precio de compra del carro dos es de 37 500. Si sumamos ambas cantidades, tenemos que ambos carros costaron 62 500 dólares. Como vendió esos dos autos a 30 000 dólares cada uno, recibió 60 000 dólares. El precio por el que vendió los autos (60 000) es menor al precio del que los compro (62 500), por lo que eso representa una perdida.

Para hallar la cantidad que ganó o perdió (en este caso perdió) debes restar el precio de venta menos el precio de compra.

60 000 - 62 500 = -2 500

Como es un número negativo, representa una perdida.

6 0
3 years ago
Every day Jack runs 3 km a) Find out how far he runs in 4 weeks​
Dafna1 [17]

Answer:

84 km

Step-by-step explanation:

you times 7 by 4 and get 28 then you times 3 by 28 and get 84 km

7 0
3 years ago
It is 2 miles from Ellie’s house to school, 1 mile = 5280 feet. How many feet is it from Ellie’s house to school ?
Lana71 [14]
This is a conversion problem. We know that 1 mile is 5280 feet, right? Since Ellie lives 2 miles, and two is double of 1, we just take 5280 and multiply that by two (or add it twice) to find how many feet is between Ellie's house and school. 5280 x 2 = 10560 (you get the same answer if you add 5280 twice). Therefore, 10560 feet lies between Ellie's house and school.
8 0
4 years ago
Other questions:
  • 1. You owe $2,348.62 on a credit card with an 8.75% APR. You pay $300.00 toward the card at the beginning of the month and anoth
    11·2 answers
  • Please help with this question !
    5·1 answer
  • Can someone plz help me and explain it to me?
    13·1 answer
  • Suppose that the number of bacteria in a certain population increases according to an exponential growth model, with a growth ra
    12·1 answer
  • The nightly fee at the surfside motel is $120 plus a $40 parking fee that covers parking for your entire stay. the tropical wind
    14·1 answer
  • Which is larger 18% or 2/11?
    10·2 answers
  • Which relations are functions?<br><br> Select Function or Not a function for each graph.
    6·1 answer
  • Help me I'm bout to breakdown on this and cry help I'm rlly not ok​
    9·2 answers
  • Please help quick I will give brainliest :(
    5·1 answer
  • Jordan wants to buy a bike that usually sells for $80.00. The store is having a sale and all merchandise is discounted by 20%.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!