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
egoroff_w [7]
3 years ago
8

PLEASE I NEED HELP!!!!!!!!

Mathematics
1 answer:
Yanka [14]3 years ago
7 0

Answer:

1) x= 3i, x= - 3i

2) x= +i\sqrt{7}, x = - i

Step-by-step explanation:

1) x^2+9=0

(x+3i)(x-3i)=0

x= 3i, x=-3i

2) x^2-4=-11

x^2=-7

x= ±i\sqrt{7}

x= +i\sqrt{7}, x = - i

hope this helps!! :))

You might be interested in
What is your favorite color of the alphabet true or false???
valina [46]
Trueeeeee i guess oop
7 0
3 years ago
|c- 24| = 7c<br><br> :D :D :D
Ivanshal [37]

c\geq0\\\\\\ |c- 24| = 7c\\\\c-24=7c \vee c-24=-7c\\\\6c=-24 \vee -8c=-24\\\\c=-4 \vee c=3\\\\-4\not \geq0\\\\\boxed{c=3}

3 0
3 years ago
Read 2 more answers
Find the area of the figure shown below.<br> 10 cm<br> 5 cm<br> 17 cm
stira [4]

Answer:

where is the figure?

Step-by-step explanation:

I can't see a figure

8 0
3 years ago
Read 2 more answers
A video sharing website starts with 20,000 members. Each year it loses 25% of the members, but adds 10,000 new members after the
Paraphin [41]
Hello there!

So, as we see here, we can see that they start out with 20,000 members. 25% of 20,000 would be 5,000 members.

So, every year, they lose 25% which is 5,000 members of they team. But then they gain 10,000 more.

So, practically, they get 5,000 every year even though they get 25% off.

5,000 would be the answer.
4 0
3 years ago
I HAVE ASKED THIS TWICE NOW YOU GUYS!! SOMEONE PLEASE HELP ME I REALLY NEED HELP PLEASE THIS IS A VERY IMPORTANT TEST I WILL GIV
lubasha [3.4K]
Ok so 12 in. = 1ft
210 in = 17.5 ft
35 in = about 2.9 ft
17.5/2.9 = approximately 6 ft.
I think the answer is 6 ft
At the same time 210/35 = 6, which would make the length 6 in., because area equals base times height, so you just divide, which would make it 1/2ft.
I would go with 6 in.
8 0
4 years ago
Other questions:
  • I need help my question is 4/7 divided by -13/5
    8·2 answers
  • Pls help me and show work
    14·1 answer
  • 13. What's the fraction 18 /24 reduced to its lowest terms?
    13·2 answers
  • Find the probability of a student being 34 years old or younger. Express your answer as a percent
    7·1 answer
  • 2x + 3y = 15<br> x + y = 6<br> Work out the values of x and y.
    7·1 answer
  • Please answer this math question for me
    10·2 answers
  • You answer 24 questions on a 100 point test correctly and earn 96%.
    14·1 answer
  • HEY! PLEASE HELP ME WITH THIS MATH QUESTION! THE CORRECT ANSWER SHALL BE MARKED AS BRAINLIEST AND I WILL FOLLOW YOU (you will al
    14·1 answer
  • Hunter jogs 6 miles in 30 minutes. What is his rate?<br> What is his rate?
    15·1 answer
  • The perimeter of a square is 30cm the perimeter of a rectangle is 30cm use this information to find out the area of the square b
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!