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andreev551 [17]
3 years ago
9

Which expression best completes the following definition of a complex number?

Mathematics
2 answers:
k0ka [10]3 years ago
7 0

Answer:

C. a+bi

I took the test

Degger [83]3 years ago
5 0
The answer is Isd= uyju love
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The question is in the picture
GrogVix [38]

Ten-thousand   AFAFANDIUAHDIUAHIUDHAIDh (had to write 20 more "letters")


8 0
3 years ago
Which value is a part of the domain? <br> -2.7<br> -2.2<br> -1.9
ozzi

Answer:

hmm, i think is -2.2 if am correct.

Step-by-step explanation:

7 0
3 years ago
How many grams of NH3 are required to produce 4.65 g of HF
nignag [31]

1.326 grams of NH3 are required to produce 4.65 g of HF.

Step-by-step explanation:

Balanced chemical reaction is written first to know the number of moles taking part in original reaction.

NH3 +3 F2 ⇒3 HF  +  NF3

Given:

mass of HF = 4.65

First the number of moles of HF in 4.65 grams is calculated by using the formula:

number of moles (n) = \frac{mass}{atomic mass of 1 mole}

atomic mass of HF = 20 grams/mole

putting the values in the above equation number of moles can be found.

n = \frac{4.65}{20}

  = 0.235 moles of HF are given.

From the equation it can be said that:

1 mole of NH3 reacts to form 3 moles of HF

so, x moles of NH3 would react to form 0.235 moles of HF

\frac{3}{1} = \frac{0.235}{x}

3x = 0.235

x = \frac{0.235}{3}

x = 0.078 moles of NH3 is required.

The moles are converted to mass by applying the formula:

mass = atomic mass X number of moles (atomic mass of NH3 = 17 grams/mole)

        putting the values in the formula

mass = 17 X 0.078

mass = 1.326 grams

8 0
3 years ago
Please help me ^^ This is due tomorrow
saveliy_v [14]
The answer is 5.

You just plug whatever number is in the f(?) part in for x!
7 0
3 years ago
All of the names of the polygon are correct EXCEPT for:
fiasKO [112]

The correct answer would be c) GDFEABC

Please mark brainliest

8 0
3 years ago
Read 2 more answers
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