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
spin [16.1K]
3 years ago
10

Solve the equation. 9x2 + 4 = 0

Mathematics
1 answer:
Alborosie3 years ago
8 0

Answer: x = \frac{2}{3}i , -\frac{2}{3}i

<u>Step-by-step explanation:</u>

9x² + 4 = 0

<u>        -4 </u>   <u>-4 </u>

9x²       = -4

   \frac{9x^{2} }{9} = \frac{-4}{9}

    x² = \frac{-4}{9}

   \sqrt{x^{2} } = \sqrt{-\frac{4}{9} }

    x = +/- \frac{2}{3}i

You might be interested in
Mark took his family out for dinner. He planned to leave a 15% gratuity on the bill. What is the total cost if the bill was 123.
valkas [14]

believe its

$127.82 because if you subtract 10% of 123.50 from itself then add a 15% tip you get 127.82


3 0
3 years ago
A rectangle is made up of 3 squares, and the perimeter of the whole figure is 88cm. Find the area of the rectangle.
tatuchka [14]
11*33


The area is 363cm squared, and the dimensions are 11 x 33
5 0
3 years ago
What can I learn in finding the sum of consecutive numbers?
Helga [31]

Answer:

By using Carl Gauss's clever formula, (n / 2)(first number + last number) = sum, where n is the number of integers, we learned how to add consecutive numbers quickly. We now know that the sum of the pairs in consecutive numbers starting with the first and last numbers is equal.

8 0
2 years ago
If a projectile is fired straight upward from the ground with an initial speed of 64 feet per
natali 33 [55]

Answer:

h = 64 feet

Step-by-step explanation:

If you graph the function you see that 64 feet is the maximum of the parabola so this is the max height that the projectile reaches.

3 0
3 years ago
Please help me I don’t have a lot of time
sp2606 [1]

Answer:

I believe the answer is d

3 0
2 years ago
Other questions:
  • hang's uncle from Japan promised to give him 21 g of gold. The local jewelry exchange will buy gold for $1152 per ounce. How muc
    13·1 answer
  • PLEASE HELP 40 POINTS
    13·2 answers
  • 7*10^7/2*10^5 write your answer as a scientific notation
    8·1 answer
  • 20Point plz help asap
    14·2 answers
  • A cyclist rides his bike at a rate of
    6·1 answer
  • write the vector u as a sum of two orthogonal vectors, one of which is the vector projection of u onto v, projvu u=(-9,3), v=(-9
    10·1 answer
  • select all the sets that are the three side lengths of right triangles A.8,7,15 B.4, 10, √84 C. √8, 11, √129 D. √1, 2, √3
    15·1 answer
  • Write the expression 8⋅ y ⋅ y ⋅ y ⋅ y using exponents.
    13·2 answers
  • 5 = 2m − 5<br> How do you solve for M
    12·1 answer
  • The graph below represents the distribution of scores on a placement test for students at Central High School. Select the statem
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!