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2 years ago

What is the distance from W=(−12,4) to the y-

Mathematics

1 answer:

trapecia [35]2 years ago

3 0

Answer:

Distance between two points calculator, formula, work with steps, step by step ... Distance between two points = √(xB−xA)2+(yB−yA)2 ( x B - x A ) 2 + ( y B - y A ) 2 ... theorem is used for measuring the distance between any two points A(xA,yA) ... for grade school students (K-12 education) to learn what is distance between ...

Step-by-step explanation:

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Honor Roll: Curfew 18 No Curfew 10 No Honor Roll: Curfew 2 No curfew 7

Rudik [331]

Among the students who did not make the honor roll. Then the relative frequency of having no curfew will be 7.

<h3>How to find the relative frequency?</h3>

Relative frequency is the ratio of the considered sub-group count to the total count. (so its frequency of the considered sub-group relative to the total frequency).

Curfew No Curfew No

Honor Roll: 18 10

No Honor Roll: 2 7

Among the students who did not make the honor roll.

Then the relative frequency of having no curfew will be 7.

Learn more about relative frequency here:

brainly.com/question/8358304

#SPJ1

8 0

2 years ago

there are 1,920 fence pounds used in a 12- kilometer stretch of fence. How many fence posts are used in 1 kilometer of fence?

Fofino [41]

Did u get it yet?if not so i can help you

4 0

3 years ago

Stern MASS ASB is doing a Valentine’s Day Fundraiser. They are selling roses for $3 each and carnations for $2 each.They sold a

horrorfan [7]

Answer:

They sold

20 Roses and 20 Carnations

Step-by-step explanation:

The total sales of 40 flowers is $100 not $10 as in the question

Roses=$3

Carnations=$2

Total flowers sold=40

Total sales=$10

Let Roses=r

Carnations=c

c+r=40. (1)

3r+2c=100 (2)

From (1)

c=40-r

Substitute c=40-r into (2)

3r+2c=100

3r+2(40-r)=100

3r+80-2r=10

r=100-80

r=20

Substitute r=20 into (1)

c+r=40

c+20=40

c=40-20

=20

c=20

r=20

Check:

3r+2c=100

3(20)+2(20)=100

60+40=100

100=100

4 0

3 years ago

ASAP!

otez555 [7]

I'm not sure but I think it is A: She will not study drug-2 or drug-1. This is because she wants less of this protein being released by the cells, but using the drug increased the level instead. Please rate low stars if this is incorrect so in the future if this turns out to be incorrect, people won't be mislead to pick the wrong answer

5 0

3 years ago

Many track runners believe that they have a better chance of winning if they start in the inside lane that is closest to the fie

3241004551 [841]

Answer:

d) 6.750

The chi - square value = 6.750

Step-by-step explanation:

Given data

Starting Position 1 2 3 4 5 6

Number of Wins (O) 33 44 32 36 45 50

Step(i) :-

mean = $\frac{33+44+32+36+45+50}{6} = \frac{240}{6} =40$

Expected frequency = 40

Number of Wins (O) : 33 44 32 36 45 50

Expected frequency(E) : 40 40 40 40 40 40

(O - E ) : -7 4 -8 -4 5 10

(O-E)² : 49 16 64 16 25 100

$\frac{(O-E)^2}{E}$ : 1.225 0.4 1.6 0.4 0.625 2.5

Step(ii):-

The χ² test

χ² = ∑ $\frac{(O-E)^2}{E}$

χ² = 1.225 + 0.4 + 1.6 + 0.4 +0.625 +2.5 = 6.75

The chi - square value = 6.750

Final answer:-

The chi - square value = 6.750

6 0

2 years ago