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Ostrovityanka [42]
3 years ago
12

Simplify the given expression.

Mathematics
2 answers:
Alinara [238K]3 years ago
7 0
(1 + 3i) + (2 - 5i) = 1 + 3i + 2 - 5i = 3 - 2i
forsale [732]3 years ago
3 0
Since you can only perform addition and subtraction on variables that have the same variable following them, the correct answer is B. 3 - 2i.
Here's why:
1 + 2 + (3i - 5i) =
3 - 2i

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The answer is 3.618

Step-by-step explanation:

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Please help anyone know how to do this.
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sides of right angle triangle follows Pythagoras theorem

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Rose and Andrew are financing 128,000 to purchase a condominium. They obtained a 15 year fixed rate loan with a rate of 5.05%. T
anzhelika [568]

Amount Financed(P) = $ 128,000

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{\text{Using the formula}} P(1+\frac{R}{100})^n\\\\ 128,000(1 +\frac{5.05}{100})^{15}\\\\ =128,000 \times (1.0505)^{15}\\\\=128,000 \times 2.0938\\\\=268,009.890

Rose and Andrew has taken four points to lower their rate to 4.81% .

   Amount after 15 years translates to, if rate of interest is 4.83 %

{\text{Using the formula}} P(1+\frac{R}{100})^n\\\\ 128,000(1 +\frac{4.83}{100})^{15}\\\\ =128,000 \times (1.0483)^{15}\\\\=128,000 \times 2.0290\\\\=259713.0404

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3 0
3 years ago
Verbalize 2(n^3+3n^2)=4n
Arada [10]

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A number cubed plus a 3 times a number squared all multiplied by 2 is equal to 4 times a number.

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Since we can't say "in parenthesis", we will have to say the expressions in the parenthesis first and then say "all multiplied by 2" to express parenthesis in word form. The rest are pretty straight forward.

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discriminant is zero (0)

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Actually, you have a double root here:  {6, 6}:  "two real, equal roots."  That tells us immediately that the value of the discriminant was zero (0).

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