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never [62]
3 years ago
9

Simplify (10 + 3i)(5 – 2i) ...?

Mathematics
1 answer:
ipn [44]3 years ago
5 0
(10+3i)*(5-2i) = 
50 - 20i + 15i - 6i²
i² = -1
50 - 5i - 6*(-1) = 
50 - 5i + 6 = 
56 - 5i
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Justin lives 3 2 5 miles from his grandfather's house. Enter the mixed number as a fraction greater than one. 3 2 5 =
elena-s [515]

Answer: \dfrac{17}{5} miles

Step-by-step explanation:

We can express a mixed fraction as an improper fraction.

The process is as follows:

a\dfrac{b}{c}=\dfrac{ac+b}{c}

The given mixed number = 3\dfrac25 miles

This can be represented as

3\dfrac25=\dfrac{3\times5+2}{5}\\\\=\dfrac{15+2}{5}\\\\=\dfrac{15+2}{5}\\\\=\dfrac{17}{5}>1

Hence, the required fraction= \dfrac{17}{5} miles

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Elanso [62]

Answer:

a) 1/800 or 0.00125

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T = [tan(2×30)+1][2cos(30)-1] ÷ (y²-x²)

T = (tan60 + 1)(2cos30 - 1) ÷ (41² - 9²)

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T = (3-1)/1600

T = 2/1600

T = 1/800

T = 0.00125

Error: 0.002 - 0.00125

0.00075

%error

0.00075/0.00125 × 100

60%

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3 years ago
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REY [17]
The correct answer is A because the 4 in the X value repeats two time and on the other ones doesn't
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Step-by-step explanation:

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