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2 years ago

Can you tell me what correct answer is and why

Mathematics

1 answer:

solmaris [256]2 years ago

8 0

Answer:

The correct answer is D...

Step-by-step explanation:

In order to find the distance of the diagonals, you would need to use the distance formula...

The square root of (x2-x1)^2 + (y2-y1)^2

After you plug in the letters into the appropriate places you should get the square root of (a+b)^2 +c

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Television networks frequently run public opinion polls on issues of concern. One network conducted a scientific poll asking a q

kobusy [5.1K]

Answer:

Option d

Step-by-step explanation:

Given that television networks frequently run public opinion polls on issues of concern. One network conducted a scientific poll asking a question concerning the approval rating of the way President Obama was handling the Iraq War. At about the same time a second network ran an online poll using a very similar question.

Observed data is

Poll Scien Online total

approve 339 385 724

disapprove 780 573 1363

1119 958 2087

$H_0: Both scientific and online are consistent\\H_a: not consistent$

(Two tailed chi square test)

Let us find out expected and chi square

Expected = row total x column total/grand total

The cell count expected in the online poll for those who approve

= $\frac{724*968}{2087} \\=333.94$

chi square = 7.81

Hence option d is right.

4 0

2 years ago

Helppp plezzzzzzes will give braniniilist

BabaBlast [244]

Answer:

1. Equivalent
2. Not equivalent

Step-by-step explanation:

1. Equivalent because there's 4 x's that you add all together and that makes 4x
2. Not equivalent because 5x means there's 5 x's or x + x + x + x + x not only 1 x plus a number 5

6 0

1 year ago

Read 2 more answers

What are the first five terms of the sequence given by the formula an = 4n + 1?

denis-greek [22]

Answer:

5,9,13,17,21

Step-by-step explanation:

We can the values in "n"

a(1)=4(1)+1

a(1)=5

a(2)=4(2)+1

a(2)=9

a(3)=4(3)+1

a(3)=13

a(4)=4(4)+1

a(4)=17

a(5)=4(5)+1

a(5)=21

As you can see, each value consecutively increases by 4, this is also known as the common difference (d).

5 0

2 years ago

a rally car course covers 51 5.97 miles .the winning car completed the course in 6.5 hours. what was the average speed of the wi

Artyom0805 [142]

Assuming the speed is in miles per hour, simply divide the total distance by time.
515.97/6.5
The answer is 79.38 miles per hour

5 0

3 years ago

PLEASE HELP ME ASAP!! Answers: undefined Negative Zero Positive

Firdavs [7]

Positive since it’s rising :)

3 0

2 years ago

Read 2 more answers