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rosijanka [135]
3 years ago
14

Simplify:(2 + i) - (-3+9i)​

Mathematics
1 answer:
Goryan [66]3 years ago
6 0

Answer:

-8i + 5

Step-by-step explanation:

Open the parentheses: 2 + i + 3 - 9i

Simplify:

-8i + 5

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The answer is b to this qestion
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Solve this question and help save my life!
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The next two term is 13 and 16 respectively.

Step-by-step explanation:

here,

a1 = -2

a2 = 1

a3 = 4

a4 = 7

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So, d = <u>a2 - a1</u> = 1 - (-2) = 3

= <u>a3 - a2</u> = 4 - 1 = 3

Here, <u>Common difference</u> is <u>same everywhere</u> and the value of d is 3

Then,

<em>To find 6th term of this sequence</em>

<u>a6 = a5 + d</u>

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<em>To find </em><em>7</em><em>t</em><em>h term of this sequence</em>

<u>a7 = a6 + d</u>

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Thus, The next two term is 13 and 16 respectively.

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7 0
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A certain library assesses fines for overdue books as follows. On the first day that a book is overdue, the total fine is $0.10.
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Answer:

Option B. $0.70

Step-by-step explanation:

First day fine = $0.10

Second day fine (doubled or $0.30 which is lesser)

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Third day fine = $0.20 + $0.20           [ $0.20 is lesser than $0.30]

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Fourth day fine = $0.40 + $0.30  = $0.70

[$0.30 is cheaper than doubling the amount $0.40 + $0.40]

Therefore, the total fine for a book on the fourth day is $0.70

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Ivanshal [37]

Answer:

  • True
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Step-by-step explanation:

This question asks you to compare the coordinates of the vertex of each function.

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The vertex of the function is its minimum, the point where the graph stops decreasing and starts increasing. It is the lowest point on the graph.

<h3>f(x)</h3>

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<h3>g(x)</h3>

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The x-value of f(x) at its minimum, -4, is less than the x-value of g(x) at its minimum, 1. TRUE

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