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malfutka [58]
2 years ago
13

PLEASE HELP WILL MARK BRAINLIEST

Mathematics
1 answer:
trapecia [35]2 years ago
6 0

Answer: 45 degrees

Step-by-step explanation: I just kinda eyeballed it, as a right angle cut in half in 45 degrees. Hope this helps!

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How many solutions does the system have?<br><br><br><br> y=−2x+4y=x2−2x+4
zlopas [31]

Answer:

One solution

Step-by-step explanation:

we have

y=-2x+4 ---> equation A

y=x^{2}-2x+4 ---> equation B

Solve the system by graphing

Remember that the solution of the system is the intersection point both graphs

using a graphing tool

there's only one point of intersection

so

The solution is the point (0,4)

see the attached figure

therefore

The system of equations has only one solution

5 0
2 years ago
A manufacturer of running shoes knows that the average lifetime for a particular model of shoes is 15 months. Someone in the res
AveGali [126]

Answer:

The decision rule is  

Fail to reject the null hypothesis

 The conclusion is  

There is no sufficient evidence to show that  the  designer's claim of a better shoe is supported by the trial results.

Step-by-step explanation:

From the question we are told that

  The population mean is  \mu = 15 \ months

   The sample size is  n =  25

   The sample mean is  \= x  = 17 \ months

   The standard deviation is  s = 5.5 \ months

Let assume the level of significance of this test is  \alpha  = 0.05

    The null hypothesis is  H_o :  \mu = 15

     The alternative hypothesis is  H_a : \mu  > 17

Generally the degree of freedom is mathematically represented as  

         df = n -1

=>       df = 25 -1

=>       df = 24

Generally the test statistics is mathematically represented as

        t = \frac{\= x- \mu }{\frac{s}{\sqrt{n} } }

=>   t = \frac{ 17 - 15 }{\frac{5.5}{\sqrt{25} } }

=>   t =  1.8182

Generally from the student t distribution table the probability of obtaining   t =  1.8182 to the right of the curve at a degree of freedom of df = 24  is  

    p-value  = P(t > 0.18182 ) = 0.4286

From the value obtained we see that  p-value > \alpha hence

The decision rule is  

Fail to reject the null hypothesis

 The conclusion is  

There is no sufficient evidence to show that  the  designer's claim of a better shoe is  supported by the trial results.

7 0
2 years ago
What is 3.4,3.14,3.04,4.4,4.03 from least to greatest
vagabundo [1.1K]
3.04 , 3.14 , 3.4 , 4.03 , 4.4
3 0
3 years ago
Read 2 more answers
Just answer the question below in the screenshot it!! Good luck!
8_murik_8 [283]

Answer:

it would be c

Step-by-step explanation:

4 0
3 years ago
Which of the following changes gives no evidence that a chemical reaction has taken place?
grigory [225]
I think the correct answer for this is 
a cube of solid forms a puddle of liquid 
but i am no sure it's correct or no
5 0
3 years ago
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