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notka56 [123]
4 years ago
9

Can somebody give me steps to solve this problem?

Mathematics
1 answer:
evablogger [386]4 years ago
6 0
I hope this helps you



1^2+2.1.3i+(3i)^2


1+6i+9i^2


1+6i+9. (-1)


1+6i-9


-8+6i
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Math help pls pls help urgent
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Step-by-step explanation:

what is the problem ? what needs to be done ?

all that you are showing here is the definition of a number range.

it means all numbers, for which 1.3 is smaller or equal.

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4 0
2 years ago
Interest earned or paid on the principal is ___ interest
svlad2 [7]

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Step-by-step explanation:

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2 years ago
Jenna solved the equation 2x^2 +5x - 42 = 0 . She stated that the solutions to the equation were 7/2 and -6. Do you agree with J
mr_godi [17]

Answer:

Yes. Her solution is correct.

Step-by-step explanation:

Let's check if Jenna solution is correct:

To solve the equation 2x^2 +5x - 42 = 0, we can use Bhaskara's formula:

D = b^2 - 4ac = 25 + 4*2*42 = 25+336 = 361

sqrt(D) = 19

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We must agree with Jenna's solution, because the values she found as solution are correct: with we replace these values of x in the equation, we will find 0 = 0, which is correct and proves that these values are the solution of the equation.

7 0
3 years ago
Read 2 more answers
Find the slope of the line that passes through (2,21) and (84, -30)
Flura [38]

Answer:

-51/82.

Explanation:

Given two points (x1,y1)=(2,21) and (x2,y2)=(84,-30), we find the slope using the formula below:

m=\frac{y_2-y_1}{x_2-x_1}

Substitute the given points:

\begin{gathered} m=\frac{-30-21}{84-2} \\ m=-\frac{51}{82} \end{gathered}

The slope of the line that passes through the given points is -51/82.

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2 years ago
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Nimfa-mama [501]
Dacá 800 este 100% atunci 25% va fi 800/4 = 200 lei 

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sper sá-ti fie de folos 

succes 


7 0
3 years ago
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