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valentina_108 [34]
3 years ago
8

What are the solutions to the equation

Mathematics
1 answer:
sineoko [7]3 years ago
7 0

Answer:

3i , -3i

Step-by-step explanation:

This is correct, I don't see what's wrong.

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Which steps could be part of the process in algebraically solving the system of equations, y + 5x = x2 + 10 and y = 4x – 10? Che
guapka [62]
That would be :
 4x – 10 = x2 – 5x + 10  ( y = 4x - 10 is substitute for y)

 PROOF:        y + 5x = x²<span> + 10
</span>                      (4x - 10) + 5x = x² + 10
                       4x - 10  =  x² -5x + 10
     <span>
    
</span>0 = x2 – 9x + 20<span>  (liked terms are grouped and simplified)

PROOF:     </span> 4x - 10  =  x² -5x + 10
                    4x = x² -5x + 10 + 10
                     0  = x² -5x -4x + 20
                     0  = x² - 9x + 20


Solving:
              x² - 9x + 20 = 0 

              x² - 5x - 4x + 20 = 0

              (x - 5) (x - 4)  = 0

           ⇒ x = 4  (as question says) OR x = 5
     

8 0
3 years ago
Read 2 more answers
The radius and circumference of several objects were measured.
Over [174]

A statement which best describes the strength of the correlation, and the causation between the variables is that: D. it is a strong positive correlation, and it is likely causal.

<h3>What is a positive correlation?</h3>

A positive correlation can be defined as a terminology that is used to described a scenario (situation) in which two variables move in the same direction and are in tandem.

This ultimately implies that, a positive correlation exist when two variables have a linear relationship or are in direct proportion. Hence, when one variable increases, the other increases as well, and vice-versa.

By critically observing the scatter plot (see attachment) which models the data in the given table, we can infer and logically deduce that the value on the y-axis (circumference) increases as the value on the x-axis (radius) increases, so this is a strong positive correlation.

Also, we know that there exist a direct relationship between the circumference of a circle and its radius, so this relationship is most likely causal.

In conclusion, a statement which best describes the strength of the correlation, and the causation between the variables is that it's a strong positive correlation, and it is likely causal.

Read more on positive correlation here: brainly.com/question/10644261

#SPJ1

3 0
2 years ago
Whats the definition of PI
natta225 [31]

Answer:

PI is the the area around the circumfrance. It is equal to 3.14.

3 0
2 years ago
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A cube has the letters A, X, E, U, T, and R on its faces. What is the probability P(X or V)?
grigory [225]
Since there are 6 possibilities, the probability of rolling either an X or V is:

2/6    or simplified   1/3     So, B. 1/3 is the correct answer!
3 0
3 years ago
HURRY ITS TIMED UUUUUUUUUUUUUUUUUYUUUUUUUUUYTDFBDHMHHDHKGFG
BabaBlast [244]

Answer:

3,2

Step-by-step explanation:

18,12

18/6 = 3

12/6 = 2

so

3,2

srry its timed so i tried to be quick

6 0
3 years ago
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