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Vinil7 [7]
4 years ago
7

(3+7i)(-2-2i)-4i(5-9i)

Mathematics
1 answer:
ValentinkaMS [17]4 years ago
8 0

(3+7i)(-2-2i)-4i(5-9i)

(3+7i)(-2-2i)(-20i+36i<2)

Combine like terms:

(3-2)(7i-20i)(36i<2)

1-13i+36i<2

This is the eqaution simplified

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Whats the median number mode and mean for 95, 97, 100, 86, 78, 96
Naya [18.7K]

Answer:

Mean = 92

Median = 95.5

There is no mode.

What is mean, median, and mode?

Mean, median, and mode are terms in math when it comes to looking at charts and sets/groups of numbers.

1. The mean is the average of a data set.

2. The median is the middle of a data set.

3. The mode is the most common number in a data set.

Mean is found by adding the numbers and dividing the sum by the number of numbers in the list. This is what is most often meant by an average. The median is the middle value in a list ordered from smallest to largest. The mode is the most frequently occurring value on the list.

Before we start, let's put the set of numbers in order from least to greatest,

95, 97, 100, 86, 78, 96

78, 86, 95, 96, 97, 100

Now that we have done that let's find the mean,

78 + 86 + 95 + 96 + 97 + 100 = 552

There are 6 numbers in this set so we need to divide 552 by 6,

552 ÷ 6 = 92

92 is the mean/average of this data set,

Now let's find the median,

If we take a look at the data set we can see that there are two numbers in the middle because there are 6 in total,

78, 86, 95, 96, 97, 100

Because there are two values that are in the middle we need to add them up and divide the sum of them by 2,

95 + 96 = 191

191 ÷ 2 = 95.5

95.5 is the median of this data set,

Now let's find the mode,

If we take a look at the date set we can see that none of the numbers are repeated,

So this means there is no mode to this data set,

Therefore the mean is 92, the median is 95.5, and there is no mode.

4 0
2 years ago
Jim had one hour to get to the
k0ka [10]
Jim has 27.5 minutes left to get to the airport.
7 0
4 years ago
The sum of two rational numbers is -5 if one of the number is -13/6 find the other number​
Vladimir79 [104]

Answer:

Let \ the \  number \ be = x\\sum \ of \ 2 \ rational \ numbers = -5\\\\x + \frac{-13}{6} = -5\\\\x - \frac{13}{6} = -5\\\\

x = -5 + \frac{13}{6} = \frac{-30 + 13}{6} = -\frac{17}{6}

The other rational number = -17/6

6 0
3 years ago
Read 2 more answers
Suppose that Y varies directly with X and Y equals 12 when X equals -2 what is X when Y equals -6
zloy xaker [14]

Answer:

X = 1

Step-by-step explanation:

Y : X

12 : -2

Id we divide both sides by -2 than it would look like this

-6 : 1

So when Y is equal to -6, X is equal to positive 1

5 0
3 years ago
How many times does 48 go into 123 ​
Rufina [12.5K]

Answer:

48 goes into 123 about 2.5625 times.

Step-by-step explanation:

To determine how many times does 48 go into 123, the following mathematical calculation must be performed, by which 123 will be divided by 48 to obtain said number of times:

123/48 = X

2.5625 = X

Therefore, 48 goes into 123 about 2.5625 times.

6 0
3 years ago
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