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ValentinkaMS [17]
3 years ago
5

What is the value of the product (3 – 2i)(3 + 2i)?

Mathematics
2 answers:
spayn [35]3 years ago
7 0
The question follows the special product rule of polynomials.
(a-b)(a+b) = a^2 - b^2

From the given, (3-2i)(3+2i), then the answer will be 3^2 - (2i)^2
simplifying the answer:
9 - 4i^2

Take note that i = square root of -1
Then, i^2 = -1

So, 9 - (4 * -1)
= 9 - -4
= 13.

So the answer is 13.
skad [1K]3 years ago
7 0

Answer: D) 13

Step-by-step explanation:

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Answer:

No. of ounces of dough= 6

No of ounces of sauce= 4

Total no. of ounces of dough= (if it is addition) 6+4= 10

(subtraction) 6-4= 2

(multiplication) 6x4= 24

(division) 6÷4=1.5

Step-by-step explanation:

5 0
3 years ago
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Please please helppppppppppppp
Leya [2.2K]

Answer:

C

Step-by-step explanation:

Both lines start and end on x = 3

The lower line has a positive slope and a y- intercept of - 2

The lower line has an open circle at it's endpoint indicating it cannot equal 3

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The upper line has a positive slope and a y- intercept of - 1, if we project the line. The line has a closed circle at it's start indicating it can equal 3, thus

x - 1 for x ≥ 3

Hence

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3 years ago
Convert 45°C to Fahrenheit.<br> _____ °F
iogann1982 [59]

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Step-by-step explanation: convert to fahrenheit

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3 years ago
3x-y+2=0 in rectangle form
kotegsom [21]

Complete Question:

Convert 3x-y+2=0 in rectangle form to polar form

Answer:

r ( 3cosθ - sinθ) = -2

Step-by-step explanation:

The equation so given is already in rectangular form, the task is to convert it to polar form.

3x - y + 2 = 0

To transform an equation from the rectangular to the polar coordinate:

x = r cosθ

y = r sinθ

Substitute the representations for x and y into the given equation:

3(r cosθ) - (r sinθ) + 2 = 0

3rcosθ - rsinθ = -2

The polar representation of the equation then becomes:

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3 years ago
At Ice Cream Haven, 14 of the last 18 sundaes sold had nuts. What is the experimental probability that the next sundae sol...
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Answer:

7/9 or 2/9, depending on the question!

Step-by-step explanation:

Probability that next sundae has nuts is 14/18 = 7/9.

Probability that the next sundae does not have nuts = 2/9

3 0
3 years ago
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