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Valentin [98]
2 years ago
13

Which is larger: i or -i? Thank you!

Mathematics
1 answer:
Sever21 [200]2 years ago
4 0

Answer:

That actually depends. We don't know if i is a negative number or not. If i is a negative number, -i would be larger. If i is a positive number, -i would be smaller. It all depends on whether i or -i is negative or positive.

Hope that helps!

Step-by-step explanation:

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Need help on this one
malfutka [58]

Answer:

3

Step-by-step explanation:

To simplify this expression, we will simply work with the numerator, then the denominator, and then the fraction as a whole, following PEMDAS.

Numerator:  12 - 6 + 5 * (-3)^2

= 12 - 6 + 5 * (9)

= 12 - 6 + 45

= 6 + 45

= 51

Denominator:  17

So our simplified fraction is as follows:

51/17

Which can be reduced to the whole number, 3.

Cheers.

3 0
3 years ago
Help binomial distributions
Ymorist [56]

We have the formula to compute the probability of having exactly k successed over n trials, given a probability p of success (and implicitly a probability 1-p of failure), which is


P(\text{k successed on n trials}) = \binom{n}{k}p^k(1-p)^{n-k}


Now, the probability of at least 3 successes is the union of the following event: exactly three successes,exactly four successes and exactly five successes.


We can compute their probability and sum them:\binom{5}{3}\left(\frac{3}{7}\right)^3\left(\frac{4}{7}\right)^2 + \binom{5}{4}\left(\frac{3}{7}\right)^4\left(\frac{4}{7}\right)^1 + \binom{5}{5}\left(\frac{3}{7}\right)^5 \approx 0.36788


So, the answer is about 36.79%

3 0
3 years ago
An entrepreneur estimates that the total profit (profit = total revenue minus total cost) from his proposed company will be give
EastWind [94]
P ( x ) = x³ - 4 x² + 3 x - 12 = 
= x² ( x - 4 ) +3 ( x - 4 ) = ( x - 4 ) · ( x² + 3 ) 
x - 4 = 0,  x = 4
x² + 3 = 0,  x² = - 3 ( there is no real solution )
Answer: In 4 years the company will break even.
4 0
3 years ago
The histogram below shows information about the number of books students read in a month:
ira [324]

Answer:

Step-by-step explanation:

This information provides the number of students who read a certain range of books. Those ranges are provided 0 to 4 (inclusive) 5 to 9 and 10-14.

Since 9 books or more covers two bins, this cannot be the answer.

The information doesn't offer specific values just ranges, so both the mean and median cannot be determined.

So the answer is C, the number of students who read 4 books or fewer.

7 0
2 years ago
Write a story problem for 2/5×7
attashe74 [19]

Answer: Mary wanted to bake 7 cakes. She know she needs 2/5 cup of olive oil for each cake so she decides to figure this out by multiplying by hand 2/5 x 7. How much olive oil will she need?

Hope this helps!  :)

Step-by-step explanation:

7 0
3 years ago
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