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Basile [38]
3 years ago
13

Help me solve (5+6i)^2

Mathematics
2 answers:
tia_tia [17]3 years ago
8 0
(5+6i)(5+6i)=
25+30i+30i+36i^2=
25+60i+36i^2
Sergio039 [100]3 years ago
8 0
The answer is 25 + 60i+36i² i think
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The length of a rectangle is 4 more than 3 times the width if the perimeter of the rectangle is 18.4 cm what is the area of the
garik1379 [7]
Let's call the width: w

the lenght is then 3w+4 ("4 more than 3 times the width")

and the parameter would be 2(w+3w+4), that is 2*(4w+4), that is 8w+8.

this is also equal to 18.4:

8w+8=18.4
8w=10.4
w=1.3

this is the width, and the lenght is:
4+3*1,3=4+3.9=7.9

and the area is their product:
1.3*7.9=10.27
6 0
3 years ago
Find three consecutive even integers whose sum is 72
Reil [10]

Answer:

23, 24 , 25

Step-by-step explanation:

23+24+25=72

7 0
2 years ago
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Step-by-step explanation:

3 0
3 years ago
Carla and Jonah are working together to determine if quadrilateral CDEF with coordinates C(2, 3), D(1, 2), E(4, 1), and F(5, 3)
alukav5142 [94]

Answer:

Option (B)

Step-by-step explanation:

CDEF is a quadrilateral having vertex C(2, 3), D(1, 2), E(4, 1), F(5, 3).

To prove that the given quadrilateral has a right angle, we will use the property of perpendicular lines.

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where m_1 and m_2 are the slopes of the consecutive sides of the quadrilateral.

Since CD and DE are the consecutive sides of the quadrilateral, Carla is on the right track by finding the slopes of CD and DE.

Since Jonah is finding the slopes of opposite sides so he will not be able to use the property of perpendicular lines.

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3 0
3 years ago
Can someone simplify this equation and solve for x and y?<br> (2x-5)+(y-1)+x=169
goldenfox [79]

Answer:

Answer

2x+3y=14,2x−3y=2

Adding :

2x+3y=14

2x−3y=2

__________

4x=16

x=4

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2×4+3y=14

8+3y=14

3y=6

y=2

Step-by-step explanation:

here you go

6 0
2 years ago
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