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Irina-Kira [14]
3 years ago
7

Find the number that should be added to the expression to make it a perfect square. k^2-5k

Mathematics
1 answer:
yuradex [85]3 years ago
6 0
(K-5/2)^2-25/4 is your answer
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Do you have a big brain if so need help plz!
tiny-mole [99]

Answer:

7x-15

4x-3

4x-5

7x +25

Step-by-step explanation:

6 0
3 years ago
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Which of the following is the conjugate of a complex number with 2 as the real part and −8 as the imaginary part?
vampirchik [111]
The complex number is given as: 2-8i

So for conjugate, you just flip the sign of the imaginary part:

2+8i will be the answer
3 0
3 years ago
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What is the modulus of |9+40i|?
Talja [164]

Answer:

41

Step-by-step explanation:

We know that complex numbers are a combination of real and imaginary numbers

Real part is x and imaginary part y is multiplied by i, square root of -1

Modulus of x+iy = \sqrt{x^2+y^2}

Here instead of x and y are given 9 and 40

i.e. 9+40i

Hence to find modulus we square the coefficients add them and then find square root

|9+49i| =\sqrt{9^2+40^2} =\sqrt{1681}

By long division method we find that

|9+40i| =41


6 0
3 years ago
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Please help me fast i need help
Rasek [7]

Answer:

minimum- 19

first quartile - 26.5

median - 29

third quartile - 31

maximum - 40

Step-by-step explanation:

7 0
3 years ago
A bike store sells scooters at a 54% markup. If the store bought each scooter for $29.25, what is the resale price to the neares
levacccp [35]

Answer:

c

Step-by-step explanation:

$29 x 54%=$16

$29 + $16= $45

5 0
3 years ago
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