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Pachacha [2.7K]
3 years ago
7

.....pleazeeeeeeee helpppppppppp

Mathematics
2 answers:
stich3 [128]3 years ago
7 0
The answer is 25 because it is a right angle so the sum of both the angles he to add up to 90 so 90-65=25
Ne4ueva [31]3 years ago
3 0

Answer:

25

Step-by-step explanation:

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A school held a jump-roping contest. Diego jumped rope for 20 minutes.
snow_tiger [21]

Answer:

Jada 15

Lin 24

Noah 9

Diego 20

Step-by-step explanation:

Hope I helped

4 0
3 years ago
Private colleges and universities rely on money contributed by individuals and corporations for their operating expenses. Much o
emmainna [20.7K]

Answer:

The 95% confidence interval   81.852  <  \mu <  280.098

Step-by-step explanation:

From the question we are told that

   The  sample mean is  \= x  =  180.975

   The standard deviation is  \sigma  =  143.042

   The sample size is n = 8

Given that the confidence level is  95%  then the level of significance is  

    \alpha =( 100- 95) \%

=>  \alpha =0.05    

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as  

      E = Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

=>  E = 1.96 *  \frac{ 143.042 }{\sqrt{8} }

=>  E = 99.123

Generally 95% confidence interval is mathematically represented as  

      \= x -E <  \mu <  \=x  +E

=>    180.975 -99.123 <  p <  180.975 +99.123

=>    81.852  <  \mu <  280.098

   

5 0
3 years ago
What is the slope and y-intercept in the equation <br>y= -x-9​
Pavel [41]

Answer:

slope is -1 and y-intercept is -9

Step-by-step explanation:

4 0
3 years ago
Simplify (-5-1)(6i+1)(7-i)
mixer [17]
Add like terms together 
2+5i
6 0
4 years ago
URGENT PLEASE HELP Enter the value of (1/2) (-8) (4). Use the on-screen keyboard to enter the value in the box below.
o-na [289]

Answer:-16

Step-by-step explanation:

-16 bc it is what it is

5 0
3 years ago
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