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EastWind [94]
3 years ago
11

Please Find the distance between the two points rounding to the nearest tenth (if necessary).

Mathematics
2 answers:
Sphinxa [80]3 years ago
8 0

Answer:

10.29 u

Step-by-step explanation:

<u>Given :- </u>

  • Two points (7,4) and (-2,9) is given to us.

And we need to find out the distance between the two points . So , here we can use the distance formula to find out the distance. As,

:\implies D = √{(x2-x1)² + (y2-y1)²}

:\implies D =√[ (7+2)² +(9-4)²]

:\implies D =√[ 9² +5²]

:\implies D =√[ 81 +25]

:\implies D = 10.29

<h3>Hence the distance between the two points is 10.29 units .</h3>
Trava [24]3 years ago
7 0

Answer:

6.32455532034

Step-by-step explanation:

Pythogreans theorem:

a^2 + b^2 = c^2 (we want c)

(9-7)^2+(-2-4)^2 = c^2

2^2 + (-6)^2 = c^2

4+36 = c^2

c = sqrt(40)

c = 6.32455532034

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Sales price is 67.50 sales tax is 5% how much is the total amount paid
Zinaida [17]
$70.88

x/67.5=5/100
cross multiply
100x=337.5
divide 100
x=3.375 or 3.38

67.50+3.38= 70.88
7 0
3 years ago
A researcher selects two samples of equal size and computes a mean difference of 1.0 between the two sample means. If the pooled
s344n2d4d5 [400]

Answer:

The Cohen's D is given by this formula:

D = \frac{\bar X_A -\bar X_B}{s_p}

Where s_p represent the deviation pooled and we know from the problem that:

s^2_p = 4 represent the pooled variance

So then the pooled deviation would be:

s_p = \sqrt{4}= 2

And the difference of the two samples is \bar X_a -\bar X_b = 1, and replacing we got:

D = \frac{1}{2}= 0.5

And since the value for D obtained is 0.5 we can consider this as a medium effect.  

Step-by-step explanation:

Previous concepts

Cohen’s D is a an statistical measure in order to analyze effect size for a given condition compared to other. For example can be used if we can check if one method A has a better effect than another method B in a specific situation.

Solution to the problem

The Cohen's D is given by this formula:

D = \frac{\bar X_A -\bar X_B}{s_p}

Where s_p represent the deviation pooled and we know from the problem that:

s^2_p = 4 represent the pooled variance

So then the pooled deviation would be:

s_p = \sqrt{4}= 2

And the difference of the two samples is \bar X_a -\bar X_b = 1, and replacing we got:

D = \frac{1}{2}= 0.5

And since the value for D obtained is 0.5 we can consider this as a medium effect.  

7 0
3 years ago
The diameter of a circle is 1.4 centimeters. Find its area. Use 3.14 Round to the nearest
NeTakaya

Answer:

Area = 1.54

Step-by-step explanation:

Area = πr^{2}

π = 3.14

diameter = 1.4

radius (half of diameter) = 0.7

Area = 3.14 x 0.7^{2}

Area = 3.14 x 0.49

Area = 1.5386

round to the nearest hundredth:

1.5386 = 1.54

8 0
3 years ago
Read 2 more answers
Toby needs to save a minimum of $250. If Toby can save $57 a month, how many months will it take for him to save enough? Select
kiruha [24]

Answer:

250  \leqslant 57m

57m \:  \geqslant 250

Step-by-step explanation:

Minimum is a word meaning greater than or equal to.

Hope this helps!

If you have anyother question feel free to ask!

7 0
1 year ago
Which of the following uses a variable to represent a person, place, or thing that is unknown
maw [93]

Answer:

Mr X

Step-by-step explanation:

his identity is a variable ; it could be anybody of the male gender.

all the other ones denote known designations, i.e, B+ grade

4 0
3 years ago
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