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Ksenya-84 [330]
3 years ago
6

Write the expression in standard form. 2/(2-15i)

Mathematics
1 answer:
Eva8 [605]3 years ago
6 0
<h3>Answer:</h3>

d. 4/229 +30/229i

<h3>Explanation:</h3>

Multiply numerator and denominator by the conjuate of the denominator, then simplify.

\dfrac{2}{2-15i}=\dfrac{2}{(2-15i)}\cdot\dfrac{(2+15i)}{(2+15i)}=\dfrac{4+30i}{2^2-(15i)^2}\\\\=\dfrac{4+30i}{4+225}=\dfrac{4}{229}+\dfrac{30}{229}i

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Nadya [2.5K]

Step-by-step explanation:

then u times the d and e to get the equivalent fraction to the number u get

7 0
3 years ago
The French club is sponsoring a bake sale to raise at least $365. How many pastries must they sell at $2.80
gregori [183]

Answer:

  • D. At least 131

Step-by-step explanation:

Let the number of pastries  is x.

<u>We have an inequality:</u>

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7 0
2 years ago
Terry had his car repaired at ace auto. He was charged $50 per hour of labor plus $150 for parts. It's total bill for the repair
amid [387]

Answer:

Terry was charged for 4.5 hours of labor.

Step-by-step explanation:

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5 0
3 years ago
A comparison of the measures of central angles and inscribed angles of circles to their intercepted arcs are listed in the table
geniusboy [140]

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<h3>What is a central angle?</h3>

Your information is incomplete as the data is not given. Therefore, an overview will be given.

Central angles are shaped by an arc between the two points. When a central angle and the inscribed angle intercept the same arc, then the central angle would be the double of the inscribed angles while the inscribed angle will be half of the central angle.

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Let c and n represent the numbers of pencil and pen boxes, respectively
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.. 2c +4n = 8.00

You can halve the second equation and subtract it from the first to get
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Then
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A box of pencils costs $1.00; a box of pens costs $1.50.
8 0
4 years ago
Read 2 more answers
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