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Burka [1]
2 years ago
15

PLS HELP DUE IN 5 MIN PLS ASAP!!!!!

Mathematics
1 answer:
anygoal [31]2 years ago
5 0

Answer: (0,-34)

Step-by-step explanation:

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Which linear inequality is graphed with y> -+-2 to create
storchak [24]

Answer:

c

Step-by-step explanation:

6 0
2 years ago
Help I need the answer
Black_prince [1.1K]

Answer:

Step-by-step explanation: i will help u what is your question?

3 0
3 years ago
The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systo
PIT_PIT [208]

Answer:

The  estimate is

             52.02  <  \mu  < 55.78

Step-by-step explanation:

From the question we are told that

    The sample mean is \ = x  =  53.9

     The sample size is  n =  24

      The standard deviation is  \sigma =  5.6

 

Given that the confidence level is  90% the level of significance is mathematically represented as

           \alpha  =  100 - 90

            \alpha  =  10 \%

            \alpha  =  0.10

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table.The value is  

           Z_{\frac{\alpha }{2} } =Z_{\frac{0.10 }{2} } =  1.645

The reason we are obtaining critical value of    \frac{\alpha }{2} instead of    \alpha is because    \alpha

represents the area under the normal curve where the confidence level interval (  1 - \alpha ) did not cover which include both the left and right tail while  

\frac{\alpha }{2} is just the area of one tail which what we required to calculate the margin of error

NOTE: We can also obtain the value using critical value calculator (math dot armstrong dot edu)

Generally the margin of error is mathematically represented as

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

substituting values

         E  =  1.645  *  \frac{5.6 }{ \sqrt{24} }

          E  =  1.880

The  estimate of how much the drug will lower a typical patient's systolic blood pressure(using a 90% confidence level) is mathematically represented as

         \= x  -  E  <  \mu  <  \= x  +  E

substituting values

         53.9  -  1.880  <  \mu  <  53.9  +  1.880

         52.02  <  \mu  < 55.78

5 0
2 years ago
Given the graph of a radical function which statement is correct
Romashka [77]

Option D is correct. The correct statement that represents the graph is R: {y E R | y ≥ -3}

From the given graph, we are to get the range.

The range is the output value for which the  function of the graph exists. The required output values are the y-values.

From the graph shown, we can see that the range of y is from -3 to 1. This can be denoted as;

Range = [-3, 1)

This shows that the range of the graph are all the values greater than -3 including -3.

The correct statement will therefore be;

R: {y E R | y ≥ -3}

Learn more about range here: brainly.com/question/17611901

6 0
2 years ago
You toss five fair coins. The probability that all five coins land heads is​
alexgriva [62]

Answer:

1/32

Step-by-step explanation:

Since we want to find the probability that all five coins land on heads, we must first find the total number of possibilities. Since there are 2 choices for each coin to land on, heads or tails, the total number of possibilities is 2^5 = 32.

Since there is only one way to to land on all heads, the probability is 1/32.

6 0
3 years ago
Read 2 more answers
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