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Arturiano [62]
4 years ago
6

4.79+ what=37 100-what=52.7

Mathematics
2 answers:
Bess [88]4 years ago
8 0
Question 1)

solve your equation step-by-step.

4.79+x=37100

Simplify both sides of the equation.

x+4.79=37100

Subtract 4.79 from both sides.

x+4.79−4.79=37100−4.79

x=37095.21


Question 2)


solve your equation step-by-step.

100−x=52.7

Simplify both sides of the equation

100−x=52.7

100+−x=52.7

−x+100=52.7

Subtract 100 from both sides.

−x+100−100=52.7−100

−x=−47.3

Divide both sides by -1.

−x−1=−47.3−1

x=47.3

Ber [7]4 years ago
6 0
 4.79 + x = 37
-4.79      -4.79        4.79 + 32.21=37
           x=32.21 
 
 100 - x =52.7
-100       -100       100- 47.3=52.7
         <u>-x</u>= -<u>47.3</u>
         -x     -x
           x= 47.3
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3 years ago
McAllister et al. (2012) compared varsity football and hockey players with varsity athletes from noncontact sports to determine
jonny [76]

Answer:

t _{critical} = 1.760

t = 2.2450

d. 0.264

Step-by-step explanation:

The null hypothesis is:

H_o: \mu_1 - \mu_2 = 0

Alternative hypothesis;

H_a : \mu_1 - \mu_2 > 0\\

The pooled variance t-Test would have been determined if the population variance are the same.

S_p^2 = \dfrac{(n_1-1)S_1^2+(n_2-1)S^2_2}{(n_1-1)+(n_2-1)}

S_p^2 = \dfrac{(8-1)2.507^2+(8-1)2.8282^2}{(8-1)+(8-1)}

S_p^2 = 7.14

The t-test statistics can be computed as:

t= \dfrac{(x_1-x_2)-(\mu_1 - \mu_2)}{\sqrt{Sp^2 ( \dfrac{1}{n} +\dfrac{1}{n_2})}}

t= \dfrac{(9-6)-0}{\sqrt{7.14 ( \dfrac{1}{8} +\dfrac{1}{8})}}

t= \dfrac{3}{1.336}

t = 2.2450

Degree of freedom df = (n_1 -1) + ( n_2 +1 )

df = (8-1)+(8-1)

df = 7 + 7

df = 14

At df = 14 and ∝ = 0.05;

t _{critical} = 1.760

Decision Rule: To reject the null hypothesis if the t-test is greater than the critical value.

Conclusion: We reject H_o and there is sufficient evidence to conclude that the test scores for contact address s less than Noncontact athletes.

To calculate r²

The percentage of the variance is;

r^2 = \dfrac{t^2}{t^2 + df}

r^2 = \dfrac{2.2450^2}{2.2450^2 + 14}

r^2 = \dfrac{5.040025}{5.040025+ 14}

r^2 = 0.2647

7 0
3 years ago
An amusement park charges a $12 parking fee plus 25 per person. What is the total cost for 32 people?​
icang [17]

Answer:

The total amount for 32 people is 15.36

Step-by-step explanation:

we know that for 25 people is $12 so we need to find how much it would be for one person. you would need to divide $12 / 25. from this you would get 0.48, so for one person it's 48 cents. next you're going to subtract 25 from 32, this leaves you with seven people who aren't in a group of 25. you then multiply 7 × this equals to 3.36, add 3.36 to $12 and you'll get your total 15.36.

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I believe it C u doing online school for virtual academy

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