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sveta [45]
3 years ago
10

WILL GIVE BRAINLIEST IMMEDIATELY!!! EXPLANATION+CORRECT ANSWER FOR BRAINLIEST!!!

Mathematics
1 answer:
Crazy boy [7]3 years ago
7 0

Answer:

Angle EDF= 53

Step-by-step explanation:

Supplementary angle: Angle EDC and angle EDF

which means angle EDC+ Angle EDF=180

Angle EDC show in the graph 127 degree

Angle EDG= 180-127=53Degree

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I need help with this question! Will mark brainliest :)
Dvinal [7]

Answer:

y=3x-2

Step-by-step explanation:

you find the 3 (the slope) by seeing how much the y value grows

the -2 is the value of the y-intercept (more clear on a graph) but it's when the point is (0,__) so you subtract 3 from 1.

3 0
3 years ago
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77julia77 [94]
The real answer is going to be 23.5
3 0
3 years ago
In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean sc
Daniel [21]

Answer:

The  number is  N  =1147 students

Step-by-step explanation:

From the question we are told that

    The population mean is  \mu  =  281

     The standard deviation is  \sigma  =  34.4

    The sample size is  n = 2000

percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

      P(250 <  X <  305 ) =  P(\frac{ 250 - 281}{34.4 }  <  \frac{X - \mu }{\sigma }  < \frac{ 305 - 281}{34.4 }   )

Generally  

             \frac{X - \mu }{\sigma }  =  Z  (Standardized \ value \  of  \  X )

So  

         P(250 <  X <  305 ) =  P(-0.9012<  Z

       P(250 <  X <  305 ) = P(z_2 < 0.698 ) -  P(z_1 <  -0.9012)

From the z table  the value of  P( z_2 < 0.698) =  0.75741

                                         and  P(z_1 < -0.9012) =  0.18374

     P(250 <  X <  305 ) = 0.75741 - 0.18374

      P(250 <  X <  305 ) =  0.57

The  percentage is  P(250 <  X <  305 ) =  57\%

The  number of students that will get this score is

           N  = 2000 * 0.57

           N  =1147

6 0
3 years ago
In the spinner below, what is the probability of landing on 5?
pantera1 [17]

Answer:

Step-by-step explanation:

D

6 0
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Elena L [17]

Answer:

21

Step-by-step explanation:

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y = -3x + 12

y=21

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3 years ago
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