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Genrish500 [490]
3 years ago
14

Simplify the following expression into the form a + bi, where a and b are rational numbers.

Mathematics
2 answers:
alukav5142 [94]3 years ago
3 0
I say 54



hopw i had helped yay
MaRussiya [10]3 years ago
3 0
(4-i) (-3+7i) - 71(8+2i) = 9 - 25i
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Lyrx [107]

Answer:

x = 49

Step-by-step explanation:

49 divided by -7 equals -7

8 0
4 years ago
Adiya said that the first step to solving the quadratic equation x2 + 6 = 20x by completing the square was to divide 6 by 2, squ
maksim [4K]

Answer:

No, it is incorrect.

Step-by-step explanation:

The quadratic equation is

x^2+6 = 20x or x^2-20x+6=0. To complete square we take the coefficient of x divided by 2, square that value and add the result to both sides. In the equation given the number to do the process is 20, not 6, then the solution method is incorect.

8 0
3 years ago
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HII PLEASE HELP ME IN THIS
Rzqust [24]

Step-by-step explanation:

(i) Sum the forces at point M in the x direction.

∑F = ma

-T sin 30° − T sin 30° + 5 N = 0

2T sin 30° = 5 N

T = 5 N

(ii) Sum the forces on the ring in the x direction.

∑F = ma

T sin 30° − N = 0

N = 2.5 N

Sum the forces on the ring in the y direction.

∑F = ma

T cos 30° − mg − Nμ = 0

Nμ = T cos 30° − mg

2.5 μ = 5 cos 30° − 2

μ = 0.932

(iii) Sum the forces on the ring in the y direction.

∑F = ma

T cos 30° − m₁g − m₂g + Nμ = 0

m₂g = T cos 30° − m₁g + Nμ

m (10) = 5 cos 30° − 2 + (2.5)(0.932)

m = 0.466 kg

8 0
3 years ago
Read 2 more answers
The perimeter of a rectangular garden is 100 feet. Find the width if the length is 35 feet
hoa [83]
If the perimeter is 100, the sum of the length and the width is 100/2=50.  Thus, the width is 50-35=15 feet.
5 0
3 years ago
X2+nx -mx-nm = 0<br> Plzzzzzzzzzzzzzzzz help me
loris [4]

Answer:

I don’t know

Step-by-step explanation:

6 0
3 years ago
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