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
Drupady [299]
3 years ago
10

√-225 • √-36 . show work.

Mathematics
1 answer:
Darya [45]3 years ago
7 0

Answer:

±90

Step-by-step explanation:

√(-225) · √(-36) = (15i)·(6i) = 90i² = 90·(-1) = -90

_____

On the other hand, ...

... √(-225) · √(-36) = √((-225)·(-36)) = √8100 = 90

___

If you consider all the roots at each stage, the result is ±90. Since you're working with complex numbers here, it is reasonable to recognize every number has two square roots.

... √(-225) = ±15i

... √(-36) = ±6i

... √(-225) · √(-36) = (±15i)·(±6i) = ±90i² = ±90

You might be interested in
What are the first three common multiples of 5 and 15
Artist 52 [7]
The first 3 common multiples of 5 and 15 are 15, 30, and 45. Remember that the number itself is also a multiple of any number, since you can multiply it by 1.

5 - 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100
15 - 15, 30, 45, 60, 75, 90, 105

Hope this helps!
8 0
4 years ago
Solve mathematics photo question, please.
Elanso [62]
This would be y=+4(3x-1) because the y+x intercepts the middle causing, 

\pi<span />
8 0
3 years ago
25 points! Help Please...
castortr0y [4]
What do you notice about each solution? : 
Picture 1 - They never intersect/touch.
Picture 2 - They are intersecting.
Picture 3 - They are on top of each other.

What do you notice about the graphs for each set of equations? : 
Picture 1 - The lines are parallel.
Picture 2 - They are intersecting.
Picture 3 - They are on top of each other. (otherwise known as coincident lines).

What do you notice about each set of equations? : 
Picture 1 - They have the same slope but different y-intercepts.
Picture 2 - Both the slopes and y-intercepts are different for each equation.
Picture 3 - They have the same slope and same y-intercept.

What generalization can you make? : 
Picture 1 - When equations have the same slope but different y-intercepts they will be parallel when graphed.
Picture 2 - When the equations have different slopes and different y-intercepts they will be intersecting.
Picture 3 - When the equations are the same they will be coincident lines when graphed.
8 0
4 years ago
for the past five months kaias gift shop had these profits or losses $120, $85, -$35 and 40$ what was her average profit or loss
Montano1993 [528]
Average amount is 52.5
7 0
3 years ago
Is it possible to prove that lines p and q are parallel? Which postulate or theorem explains it
attashe74 [19]

Answer:

blahblahblah

Step-by-step explanation:

blahblahblah

6 0
3 years ago
Other questions:
  • What is 1.04166667 in a fraction?your final answer is: 1.04166667 can be written as the fraction 1 4166667/10000000 ] ]?
    6·1 answer
  • A vacuum cleaner is priced at $135. The sales tax rate is 8%. What is the amount of sales tax in dollars and cents?​
    5·1 answer
  • What will be the unit digit of the cube of a number ending with 9 ?
    5·2 answers
  • Help please <br><br> x =<br><br> 4<br> 7<br> 9
    14·1 answer
  • A certain rectangle is 5 times as long as it is wide. Suppose the length and width are both tripled. The perimeter of the second
    5·1 answer
  • Form the quadratic equation whose one root is 2 + 2^(1/2)​
    14·1 answer
  • The sum of two numbers is 115. Their difference is 21. Find numbers. I need to show my answer
    14·2 answers
  • A mixture of jellybeans is to contain twice as many red as yellow, three times as many green as yellow, and twice as many pink a
    6·1 answer
  • Tommy bought 3 cups of blueberries. He will eat 2 cup of blueberries each day.
    12·1 answer
  • What two numbers multiply to be 24, but add to equal -11
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!