3 years ago

Which of the following is a conjugate for 7 + iSquare root of 2?

Mathematics

2 answers:

Mice21 [21]3 years ago

7 0

Answer:

7 - i $\sqrt{2}$

Step-by-step explanation:

Given a complex number a ± bi then the complex conjugate is

a ∓ bi

Note that the real part remains the same while the sign of the coefficient of the imaginary part is the opposite

Hence conjugate of 7 + i $\sqrt{2}$ is 7 - i $\sqrt{2}$

Orlov [11]3 years ago

4 0

7- i square root of 2

You might be interested in

What is the solution to the system below? <br> x + 3y = 0<br> 2x - y = -7

sasho [114]

( x, y ) = ( -3, 1 )

hope it helps!

8 0

3 years ago

A scientest is studying a new super bacteria that is threatening to cause an outbreak. On the first day, there were 5 organisms

ElenaW [278]

Answer:

C. 125

Step-by-step explanation:

Given:

Bacteria on day 1 = 5

On day 2, each bacteria got split into 5.

So, number of bacteria on day 2 = $5\times 5 = 25$

Now, again on day 3, each of the 25 bacteria got split into additional 5 bacteria.

So, number of of bacteria on day 3 = $25\times 5 =125$

Therefore, the population of bacteria on day 3 is 125.

8 0

3 years ago

Find the common ratio of the geometric sequence 4, -20, 100, -500, ...

asambeis [7]

Answer:

r = -5. Find the pattern and write the recursive formula: a_n + 1 = - 5 a_nGiven the recursive formula: r =

6 0

2 years ago

1.. A train travels at a speed of 58 km/hr. If it goes from one station to the next in 1.6 hours, how far has it traveled?

wel

Answer:

92.8 km

Step-by-step explanation:

s=d/t

58=d/1.6

58*1.6=d

92.8=d

7 0

3 years ago

• One Class is selling tickets for $2.50 and has already raised $350

Jet001 [13]

C because it has the price of each ticket.

3 0

3 years ago

Read 2 more answers