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3 years ago

What is the distance between -2-3i and 3+9i

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

5 0

Answer:

d = 13

Step-by-step explanation:

The distance formula in a complex plane is $\sqrt{(s-a)^{2} + (t-b) }$ . Let us say that points (a,b) are (-2,-3) and points (s,t) are (3,9), both coordinates derived from given. Substitute the numbers into the equation to get the distance.

d = $\sqrt{(3-(-2))^{2} + (9-(-\\3))^{2} }$

d = 13

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Can somebody please help me

seraphim [82]

Answer:

3) 36

2) 55

Step-by-step explanation:

We have to place the numbers in order from least to greatest.

3) 23, 26, 26, 32, 32, 36, 50, 52, 52, 52, 59,

4) 40, 42, 49, 54, 62, 67, 67, 70, 95

The more is the the difference between the lowest and highest values.

95-40=55

6 0

3 years ago

How do I solve part A

timurjin [86]

You have to put them into order, then multiple the two sides kf the triangle then put them together

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3 years ago

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Q7Which statement is incorrect for the graph of thefunction y = -5 cosGcos( 3 (x – 3)) +62The period is 4.The amplitude is 3.The

guajiro [1.7K]

The given function is,

$y=-5\cos (\frac{\pi}{2}(x-3))+6$

The graph can be drawn as,

The period will be distance between two consequetive maximas,

$\text{Period}=1-(-3)=4$

Thus, period is correct.

The amplitude can be determined as,

$\begin{gathered} Amplitude=\frac{\max -\min }{2} \\ =\frac{11-1}{2} \\ =5 \end{gathered}$

Thus, amplitue is incorrect.

The range is,

$y\in\lbrack1,11\rbrack$

Thus, the range is correct.

The midline is,

$\begin{gathered} \text{midline}=\frac{\max +\min }{2} \\ =\frac{1+11}{2} \\ =6 \end{gathered}$

Thus, the midline is correct.

Thus, option (b) is the solution.

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1 year ago

Anyone know what 422,391÷28=<br>

saul85 [17]

15085.3929
Explanation
Use a calculator

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2 years ago

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What is the value of x<br><br> 1/5 = 25/x

Mama L [17]

First getting x as a numerator rather than a denominator. Then grouping like terms by moving 5 from the left side to the right. Work below:
$\frac{1}{5} = \frac{25}{x} \\ \frac{1}{5}*x = \frac{25}{x}*x\\ \frac{1}{5}x = 25\\\frac{1}{5}x * 5 = 25*5\\x=125$

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3 years ago

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