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kherson [118]
3 years ago
5

This is part of a population selected to predict information about the population as a whole. Example: 100 voters were polled af

ter they voted, 50 voted democrat and 50 voted republican; the final results are sure to be close.
Mathematics
1 answer:
Anastasy [175]3 years ago
4 0

Answer:[][][][][][][]

This is scenario is undemocratic.

Explanation:

The winner of the presidential election, Donald Trump, received less votes than Democratic nominee Hillary Clinton. Furthermore, the majority of people did not vote for anyone.

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Find two complex numbers that have a sum of i10 a different of -4and a product of -29​
lianna [129]
<h2>-2+5i and 2+5i</h2>

Step-by-step explanation:

   Let the complex numbers be a+ib\textrm{ and }c+id.

Given, sum is 10i, difference is -4 and product is -29.

(a+c)+i(b+d)=10i ⇒ a+c=0,b+d=10

(a-c)+i(b-d)=-4 ⇒ a-c=-4,b-d=0

a=-2,c=2,b=5,d=5

(a+ib)(c+id)=(-2+5i)(2+5i)=-4-25=-29

Hence, all three equations are consistent yielding the complex numbers -2+5i\textrm{ and }2+5i.

8 0
3 years ago
Three brothers Charlie Robert and Nicholas have 21 video games Charlie has twice as many games as Robert. Robert has 5 fewer gam
AVprozaik [17]

Answer:

The equation would be 4x-15=21.

Step-by-step explanation:

Given;

Total Number of Video games = 21

Let the number of video game Nicholas has be 'x'.

Now Given:

Robert has 5 fewer games than Nicholas.

so we can say that;

number of video game Robert has = x-5

Also Given:

Charlie has twice as many games as Robert.

so we can say that;

number of video game Charlie has = 2(x-5)=2x-10

we need to write the equation.

Solution:

Now we can say that;

Total Number of Video games is equal to sum of number of video game Nicholas has, number of video game Robert has and number of video game Charlie has.

framing the equation we get;

x+x-5+2x-10=21\\\\4x-15=21

Hence The equation would be 4x-15=21.

On Solving we get;

Adding both side by 15 we get;

4x-15+15=21+15\\\\4x=36

Dividing both side by 4 we get;

\frac{3x}{4}=\frac{36}{4}\\\\x=9

Hence Nicholas has = 9 video games

Robert has = x-5= 9-5=4 video games

Charlie has = 2x-10 = 2\times9-10=18-10=8 video games

5 0
3 years ago
Read 2 more answers
A boat cruise is 32 miles long. There are 40 sight-seeing stops evenly spread throughout the cruise. The boat covered 13 of the
Sauron [17]
For the first question, divide 32 by 40 and it should equal .8 miles. Then, for the second question, multiply .8 by 13 and it should equal 10.4 miles.
3 0
3 years ago
use the number and decimal to write a number in which the digit 2 is one tenth the value of the digit 2 in 8.524
artcher [175]
I think it is tens or sum look up fractions place value and u will probable  get it

6 0
3 years ago
-40+2n=4n-8n+8 EXPLAIN IN NUMBER FORM AND NO WORDS
marin [14]

Answer:

−40+2n=−4n+8

−40+2n+40=−4n+8+40

2n=−4n+48

2n+4n=−4n+48+4n

6n=48

answer:  n=8

Step-by-step explanation:

8 0
2 years ago
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