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
Inessa [10]
3 years ago
15

(-30) - (+40) = (-30) + (-40) explain why this is true

Mathematics
2 answers:
Mariana [72]3 years ago
7 0

Answer:

This is true because negative and positive is positive that why there is a addition sign in the middle and positive 40 becomes negative

Step-by-step explanation:

VikaD [51]3 years ago
6 0
You have to distribute the minus sign into the parentheses and you multiply it.
You might be interested in
Which of the following of x and y would make up the following expression represent a real number? (4+5i)(x+yi)
salantis [7]

Answer:

x = 4 and y = - 5

Step-by-step explanation:

note that the product of a complex number and it's conjugate is real

That is

(a + bi)(a - bi) where a, b are real

= a² - abi + abi - b²i²

= a² + b² ← a real number

For (4 + 5i)(x + yi) to be real

we require (x + yi) to be the conjugate of 4 + 5i , that is 4 - 5i

(4 + 5i)(4 - 5i) ⇒ x = 4 and y = - 5



8 0
3 years ago
Please help meeeeee for points
padilas [110]

Answer:

Karma ig

Step-by-step explanation:

Idek ;-;

7 0
3 years ago
Read 2 more answers
2 to 36 to 64 what did Tina do wrong
pantera1 [17]
36 + 2? is that what you want? 38 is the answer to that. maybe she forgot comas instead of to
7 0
3 years ago
Which of the binomials below is a factor of this trinomial? x² - 4x-12 ​
noname [10]

Answer:

(x +2) (x-6)

Step-by-step explanation:

x^2 -6x + 2x + 12 =

x^2 -4x + 12

5 0
3 years ago
3x + 3 = x - 5<br> Solve for x
Mars2501 [29]

Answer:

x = -4

Step-by-step explanation:

plz vote brainliest :)

4 0
3 years ago
Read 2 more answers
Other questions:
  • How do you simplify an expression that contains a fraction bar?
    11·1 answer
  • What is the prime factorization of 9
    5·1 answer
  • There are 48 grapes in the ball mia eat 18 her mom and 22 Graves to the bowl how many grapes are in the bowl now
    8·1 answer
  • |2x−3y| if x=0.5; y=−0.7 help me out please
    10·2 answers
  • Math questions 40 and 41!!
    5·1 answer
  • PLEASE PLEASE PELASE SOMEONE HELO ME ON 4 AND 5 OKEASE HELP ME DIND X AND Y IM FREAKINF OUT THIS IS DUE AT 2
    5·1 answer
  • Move the numbers to the blanks to solve the problem<br><br>6 divided by 1/3​
    12·1 answer
  • Help please will mark brainliest
    5·1 answer
  • Amy ate of a pizza and Jack ate of a pizza. Which of the following is true?
    8·1 answer
  • The data modeled by the box plots represent the battery life of two different brands of batteries that Mary tested. A) What is t
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!