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4 years ago

Write (2 − 3i) − (-2 − 3i) as a complex number in standard form

Mathematics

2 answers:

GrogVix [38]4 years ago

8 0

The answer is 4.
I think.

Taya2010 [7]4 years ago

5 0

standard form: a + bi .

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What are the coordinates of A’, the image of A(-7, 9), after a rotation of -180° about the origin?

Dmitry_Shevchenko [17]

Answer:

7,-9

Step-by-step explanation:

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3 years ago

To the nearest millimeter, a cell phone is 72 mm long and 46 mm wide. What is the ratio of the width to the length

earnstyle [38]

Answer:

Length = 72 mm

Width = 46 mm

Ratio = 72:46 = 36:23

Step-by-step explanation:

72 and 36 both are divisible by 2. so when we divide them by two we get 36 and 23. we can divide both the sides only with the same number, but 36 and 23 have no common factors. so we leave it here and this is the answer.

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3 years ago

I don’t get this one please HELPPP MEE

iren2701 [21]

Answer:

135

Step-by-step explanation:

The given expression is

$\frac{2 {x}^{2} }{x} +x(100 - 15x)$

From the question, x=5

So,by substitution,we obtain

$=\frac{2({5}^{2})}{5} +5(100 - 15(5))$

$=\frac{2(25)}{5} +5(100 - 75))$

$=2(5)+5(25)$

$= 10+125$

$= 135$

Hence the answer is 135

8 0

3 years ago

Meaning of transmission last napo

PtichkaEL [24]

Answer:

the action or process of transmitting something, or the state of being transmitted.

8 0

3 years ago

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Solve the system using combination method to get a solution (x,y) 4x+7y=10 -4x-6y=28

PIT_PIT [208]

$\left \{ {{4x+7y=10} \atop {-4x-6y=28}} \right. \\\\add\ those\ two\ equations\\\\
y=38\\\\
4x+7y=10\ \ \ | subtract\ 7y\\\\
4x=10-7x\ \ \ \ | divide\ by\ 4\\\\
x=\frac{10-7x}{4}=\frac{10-7*38}{4}=\frac{10-266}{4}=\frac{-256}{4}=-64\\\\
solution:\\ \left \{ {{y=38} \atop {x=-64}} \right.$

3 0

4 years ago

Read 2 more answers