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
alisha [4.7K]
3 years ago
8

Al sumar y/o restar números decimales, siempre se debe aplicar la norma de los signos. * 1 punto FALSO VERDADERO

Mathematics
1 answer:
Luden [163]3 years ago
7 0

Answer:

La norma de los signos es para el producto de números reales, y la norma es la siguiente.

(+)*(+) = (+)

(+)*(-) = (-)

(-)*(+) = (-)

(-)*(-) = (+)

Es decir, el producto de dos números de mismo signo es siempre positivo

El producto de dos números de distinto signo es siempre negativo.

Particularmente, para la suma esta norma no funciona (pues no está definida para la suma)

Pero en casos como:

5 - (-4)  

(esto sería: "la diferencia entre cinco y menos cuatro")

notar que podemos reescribir esto como:

5 + (-1)*(-4)

Ahora podemos aplicar la norma de los signos:

5 + 4 = 9

Donde aplicamos la norma de los signos,  

Podemos concluir que, si bien es una regla que aplica al producto, siempre la tenemos que tener en cuenta en cualquier operación que hagamos.

Por lo podemos concluir que la respuesta correcta es verdadero.

You might be interested in
Naoko found a deck of playing cards that had been dropped onto the floor. she picked up at least one card. she may have picked u
quester [9]
The answer to this question would be: 2*52! -1

In this case, the card is either picked up by Naoko or they are not picked up. That means there are two possible outcomes for each card. For 52 card, the possibility should be:
2*52!

If Naoko needs to pick at least one, the possibilities become one less because "no card picked" possibility is ruled out
8 0
3 years ago
If you had 36 cookies and gave 1/2 to one friend and 1/4 to another, how many could you have left?
Ann [662]

Step-by-step explanation:

\frac{1}{2}  +  \frac{1}{4}  =  \frac{2}{4} +  \frac{1}{4}   =  \frac{3}{4}

\frac{3}{4} 36 = 27

6 0
1 year ago
(4x) to the power of -4​
Eva8 [605]

Answer:

3.90625×10^_03

Step-by-step explanation:

gshdieej

4 0
3 years ago
If it takes 1/5 cup of flour to make 1/8 of a cake, how many cups of flour are needed to make a whole cake
Alexeev081 [22]

Answer:

D.) 1 3/5

Step-by-step explanation:

You need 1/5 cups of flour 8 times so you need to multiply 1/5 by 8.

1/5 × 8 = 8/5  

Then simplify.

8/5 = 5/5 + 3/5 = 1  3/5

3 0
3 years ago
Read 2 more answers
Free points :)) hope you have a good day !!
bonufazy [111]

Answer:

Thanks, but here is a problem I'll give myself.

Problem X+2 > 3

Step-by-step explanation:

1. Take Away 2 from both sides.

2. Answer: X > 1

5 0
3 years ago
Read 2 more answers
Other questions:
  • What's the answer for 2p+5r=q for p
    14·1 answer
  • Rewrite 2 4/7 as an improper fraction. Use / for the fraction line
    15·2 answers
  • Tim wants to collect 400 stickers. if he makes pages of 10, how will he know when he has 400 stickers?
    9·2 answers
  • 2x+3y=9 x+5y=8<br><br> solving systems using elimination solve and show your work thank you
    15·1 answer
  • Please help me with this ​
    5·1 answer
  • Assume that a raindrop's volume is 1 cubic centimeter. In centimeters, what would be the depth of water in a pan whose square ba
    9·1 answer
  • X+71=7x+5 <br><br> Help help help
    5·2 answers
  • Question 5: A car travel a distance of 330km at an average speed of to
    5·1 answer
  • Which of the following is the product of the rational expressions shown<br> below?<br> 3/x+7 x 4/x
    8·2 answers
  • Nate wants to visit his friend Mac before going to the park. Nates house is located at (-2,4) while the park is located at (10,2
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!