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
Leni [432]
3 years ago
5

Add and write the result in the form a+bi. a. (4 + 2i) + (-6 - 7i)

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

- 2 - 5i

Step-by-step explanation:

Given

(4 + 2i) + (- 6 - 7i) ← remove the parenthesis

= 4 + 2i - 6 - 7i ← collect like terms

= - 2 - 5i

You might be interested in
- Abel says (62)3 = 65. Is he correct?<br> Explain.
expeople1 [14]

Answer and Step-by-step explanation:

Abel is incorrect. (62)3 denotes that the two terms are being multiplied. Instead of multiplying, Abel added these two terms.

The correct solution would be:

(62)(3)=186

8 0
3 years ago
Read 2 more answers
A teacher took a group of 38 students to the movie theater. They have saved $247 in a fund for the students's tickets. How much
Vika [28.1K]

Answer:

$19

Step-by-step explanation:

you do 6 times 38 and then you do 247 minus 228 and get your answer of 19

6 0
3 years ago
Two numbers have these properties:
Elina [12.6K]

The two numbers are 12 and 30

Step-by-step explanation:

Let us revise the meaning of HCF (highest common factor) and LCM (least common multiple)

  • The highest common factor of two numbers is the largest whole number which is a factor of both, the HCF of 4 and 6 is 2 because the factors of 4 are 1, 2, 4 and the factors of 6 are 1, 2, 3, 6; the common factors are 1, 2 and the greatest is 2 so the highest common factor of 4 , 6 is 2
  • The least common multiple of two numbers is the smallest number that they both divide evenly into, the least common multiple of 4 and 6 is 12 because the multiples of 4 are 4, 8, 12, 16, ... and the multiples of 6 are 6, 12, 18, 24, ...; the first common multiple between then is 12

∵ Both numbers are greater than 6

∵ Their HCF is 6

- That means 6 is a factor of both of them

∴ The two numbers are multiple of 6 without any other common

   factor greater than 6

Let us write the multiple of 6 greater than 6

∵ 12 , 18 , 24 , 30 , 36 , ......... are multiples of 6

∵ Their LCM is 60

- That means 60 can divided by them

∵ 60 can divided by 12

∵ 60 can divided by 30

∵ The factors of 12 are 1 , 2 , 3 , 4 , 6 , 12

∵ The factor of 30 are 1 , 2 , 3 , 5 , 6 , 10 , 15 , 30

∵ Their common factors are 1 , 2 , 3 , 6 and the greatest one is 6

- 12 and 30 have HCF of 6 and LCM of 60

∴ The two numbers are 12 and 30

The two numbers are 12 and 30

Learn more:

You can learn more about the factors in brainly.com/question/5194236

#LearnwithBrainly

4 0
4 years ago
In a school there are 240 boys and 260 girls. What is the ratio of girls to boys
Tpy6a [65]

Hello!

<u> girls: </u>

260/500

26/50

13/25

<u>boys :</u>

240/ 500

24/50

12/25

7 0
3 years ago
Read 2 more answers
Determine the value of y, if x is 3.<br> y = | x | + 5<br> Answer:
dlinn [17]

Answer:

y=8

Step-by-step explanation:

l3l=3

3+5=8 so y=8

5 0
3 years ago
Read 2 more answers
Other questions:
  • A 10-foot ladder is leaning against a tree. The bottom of the ladder is 4 feet away from the bottom of the tree. Approximately h
    15·2 answers
  • What is x, the length of the diagonal, to the nearest whole number
    6·2 answers
  • Consider that point A is reflected across the y-axis. What is the distance between point A and the point of its reflection?
    8·1 answer
  • Try to answer the following question without running the code in Python: If we run the following line: y = int(3 * '4') what is
    6·1 answer
  • Find the APR, rounded to the nearest tenth of a percent (one decimal place) for the loan. Purchase a living room set for $4,900
    7·1 answer
  • 7. Karton soku rozlano do trzech szklanek w stosunku do 3 : 4 : 5. Szklanka, w której było go najmniej, zawierała 150 ml soku. O
    5·1 answer
  • What answer is equivalent to 5[6x+3y]
    14·2 answers
  • a person is raising money to go on the marching bands spring tour. He needs to raise $500 so far he has raised $320. What percen
    14·1 answer
  • The temperature of a pot of hot water is 200.5. The temperature of the water decreases 3.5 per minute. What is the temperature o
    14·1 answer
  • Billy is going to share 2 1/2 pizzas with
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!