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Hitman42 [59]
3 years ago
6

Plsss help will give a good amount of points, need done asap

Mathematics
2 answers:
Alex3 years ago
7 0
4+2i because you can’t have a negative square root
maksim [4K]3 years ago
7 0

Answer:

4 + 2i

Step-by-step explanation:

Since

\sqrt{ - 1}  = i

4 +  \sqrt{ - 4}  = 4 +   \sqrt{ - 1 \times  {2}^{2} }  \\  = 4 +  2i

You might be interested in
What is the slope of the line (-4,-4) and (1,4)
Misha Larkins [42]

Answer:

8/5

Step-by-step explanation:

To find the slope given two points

m = (y2-y1)/(x2-x1)

    = (4- -4)/(1 - -4)

   = (4+4)/(1+4)

   =8/5

7 0
3 years ago
Read 2 more answers
Maranda praticed a total of 52 hours in 4 weeks to prepare for a piano recital. If she practiced the same number of hours each w
RUDIKE [14]

The number of practice hours per week for Maranda's piano recital is 13 hours

Overall practice hours = 52 hours

Number of weeks of practice = 4 weeks

Since, the number of practice hours per week is the same ;

Number of hours practiced each week can be obtained by dividing the overall practice hours by the number of weeks of practice.

Number of practice hours per week = Overall practice hours ÷ Number of weeks of practice

Number of practice hours = (52 ÷ 4) = 13 hours

Therefore, Marana practiced for 13 hours each week.

Learn more : brainly.com/question/18109354

3 0
2 years ago
3×-5=16 and 3×=21
larisa [96]

Step-by-step explanation:

because we can also find out the value of x in second equation like this

3x=21

x=21/3

x=7

8 0
2 years ago
Read 2 more answers
Can someone do #1 and #2 I don't really get the answer. My teacher hasn't explain anything. He just gave us the paper and we got
Elenna [48]
1) f(x) + g(x)

= 7√x + 4 + 2√x - 2

= √x(7 + 2) + 2

= 9√x + 2  [ Final Answer ]

2) f(x) - g(x)

= 7√x + 4 - (2√x - 2)

= 7√x + 4 - 2√x + 2

= √x(7 - 2) + 6

= 5√x + 6   [ Final Answer ]

Hope this helps!
5 0
3 years ago
For a field trip, a bus company charges a flat fee plus an additional fee per student. for 25 students, the total cost is 132.50
pochemuha
The answer is y=5x+7.5
8 0
3 years ago
Read 2 more answers
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