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lidiya [134]
3 years ago
12

If f(x)= 2x^2 +5radical(x-2)

Mathematics
1 answer:
elena55 [62]3 years ago
4 0

Answer:

82

Step-by-step explanation:

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4/6 written as a ratio is <br>​
earnstyle [38]

Answer:

4:6

Step-by-step explanation:

Ratios and fractions can be written interchangably

6 0
3 years ago
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Im giving 30 points pls help
gayaneshka [121]

Step-by-step explanation:

Pathagory and Theorem

a^2+b^2=c^2

(x-3)^2+(x-4)^2=6^2

expand:

2x^2-14x+25=36

2x^2-14x-11=0

x=(\sqrt{71}+7)/2

perimeter=(x-3)+(x-4)+6=2x-1

insert the value for x into 2x-1

\sqrt{71}+6=perimeter

Hope that helps :)

7 0
3 years ago
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PLZ HURRY
snow_lady [41]

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1. 615.75

2. 9

Step-by-step explanation:

6 0
3 years ago
Simplify the expression 7t +3- 2 t
Ivenika [448]

Answer:

5t+3

Step-by-step explanation:

1 Collect like terms.

(7t-2t)+3

2 Simplify.

5t+3

7 0
2 years ago
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Suppose 232subjects are treated with a drug that is used to treat pain and 50of them developed nausea. Use a 0.01significance le
Margarita [4]

Answer:

A

   The  correct option is B

B

   t =  0.6093

C

 p-value  =  0.27116

D

The  correct option is  D

Step-by-step explanation:

From the question we are told that

    The  sample size is  n  =  232

    The  number that developed  nausea  is X =  50

    The population proportion is  p  =  0.20  

 

The  null hypothesis is   H_o : p  =  0.20

The  alternative hypothesis is  H_a :  p > 0.20

Generally the sample proportion is mathematically represented as

     \r p  =  \frac{50}{232}

     \r p  =  0.216

Generally the test statistics is mathematically represented as

 =>           t =  \frac{\r p  -  p }{ \sqrt{ \frac{p(1- p )}{n} } }

=>           t =  \frac{ 0.216 - 0.20 }{ \sqrt{ \frac{ 0.20 (1- 0.20 )}{ 232} } }

=>        t =  0.6093

The  p-value obtained from the z-table is

       p-value  =  P(Z >  0.6093) =  0.27116

  Given that the  p-value >  \alpha  then we fail to reject the null hypothesis

5 0
3 years ago
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