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lesya [120]
3 years ago
10

What is the square root of -1

Mathematics
2 answers:
liraira [26]3 years ago
4 0

Answer:

i.

Step-by-step explanation:

.

insens350 [35]3 years ago
3 0

Answer:

\sqrt{-1}=i

The square root of -1 (i)

<u>---------------------------------</u>

~HOPE IT HELP

~HAVE A GREAT DAY!!

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Five consecutive positive integers are chosen at random. If the average of the five integers is odd, what is the remainder when
kupik [55]

Answer:

The remainder would be 1 or 3

Step-by-step explanation:

Consider the 5 consecutive positive integers are,

x,  x + 1,  x + 2,  x + 3,  x + 4,

Average =\frac{\text{Sum of all observation}}{\text{Number of observations}}

Since, the average of these 5 numbers = \frac{x+x+1+x+2+x+3+x+4}{5}

=\frac{5x+10}{5}

= x + 2

If x + 2 = odd,

⇒ x = odd - 2 = odd - even = odd

⇒ x + 4 = odd + even = odd

∵ an odd number is represented by '2n + 1'

Where, n = 0, 1, 2, 3, ........

Now, 2n + 1 = 1( mod 4) if n = even

While, 2n + 1 = 3( mod 4) if n = odd,

Hence, when the largest of the five integers is divided by 4 remainder would be 1 or 3.

4 0
3 years ago
Brayden and gavin were playing touch football against cole and freddy touchdowns were worth 7 points.brayden and gavin scored 7
larisa [96]

Answer:  14 points or 2 touchdowns

Step-by-step explanation:

7 touchdowns times 7 points = 49 points scored by brayden and gavin

9 touchdowns times 7 points - 63 points scored by cole and freddy

63 - 49 = 14

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3 years ago
The fair will be traveling to a place that uses the metric system. They received directions to their next stop, but they are in
MariettaO [177]

Answer:

2x - 0.4x ;

8x/5 ;

Yes

Step-by-step explanation:

Let number of miles = x

Arlene:

Double number of miles = 2 * x = 2x

Subtract 20% of the result :

2x - 20% of 2x ;

2x - 0.4x

Raul:

Divides Number of miles by 5 ; x / 5

Multiplies result by 8 ;

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To know if expressions are equivalent :

Let x = 10 miles

Using Arlene's expression:

2x - 0.4x

x = 10

2(10) - 0.4(10) = 16

Using Raul's expression :

8x / 5

(8*10) / 5

80/5

= 16

Since they give the same result, we can conclude that the expression are equivalent

5 0
3 years ago
How do you find deviation and standard deviation
AveGali [126]

Answer: The standard deviation formula may look confusing, but it will make sense after we break it down. ...

Step 1: Find the mean.

Step 2: For each data point, find the square of its distance to the mean.

Step 3: Sum the values from Step 2.

Step 4: Divide by the number of data points.

Step 5: Take the square root.

Step-by-step explanation:

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Travis bought 8 new books for $7.99 each. How much did he spend on books?
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Answer:

$63.92

Step-by-step explanation:

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