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3 years ago

Select the correct answer from the drop down menu

Mathematics

1 answer:

anygoal [31]3 years ago

6 0

The last one , because I will now solve it for you and prove therefore.

x²–4x+5=0;

D=(–4)²–4•5=16–20= –4= (2i)².

So:

x1= (4–2i)/2= 2–i

x2= (4+2i)2= 2+i.

This is the whole answer....

Three other u will solve by yourself and have roots which will not be suitable.

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The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number? x = –1 and x =

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we have

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<u>the answer is</u>

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3 years ago

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2 years ago

a company promises to release model every month. each model's battery life will be 6% longer than the previous model's. if the c

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The number of months that it will take the latest model's battery life to reach 1,008.9 minutes is; 8 months

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Each month, there is an increase by a factor of 0.06 of the previous months model.

From geometric sequence formula of aₙ = ar^(n - 1),

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Read more about geometric sequence at; brainly.com/question/24643676

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Answer:

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