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Bond [772]
3 years ago
14

Graph Included:The piecewise function h(x) is shown on the graph.What is the value of x when h(x) = −3?−7, -1, 0 , 2

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
6 0
The answer to your question is -1
solong [7]3 years ago
4 0

Answer: The value of x=-1 ,when h(x)=-3


Explanation:-

The piecewise function h(x) is shown on the graph. We can see at the left side in the third quadrant x=-1 when y=-3, Thus x=-1 when h(x)=-3 .

On the right side in the fourth quadrant we also have x=2 when y=-3 ,but that point is with open circle which means that point isn't included for the function.

Therefore  the value of x=-1 when h(x)= -3.



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If f(x) = x/2 -3 and g(x) = 3x² + x - 6, find (f + g)(x). O A. 3x O B. 3x² + 3x-9 3x O C. 3.x2 + x - 3 O D. 4x2-9​
Olenka [21]

Answer:

4x2-9

Step-by-step explanation:

it would be that because the number is in the c acis

8 0
3 years ago
The mean percentange of a population of people eating out at least once a week is 57℅
Sidana [21]

Answer:

<u>The correct answer is B. between 56.45% and 57.55% </u>

Complete statement and question:

The mean percentage of a population of people eating out at least once a week is 57% with a standard deviation of 3.50%. Assume that a sample size of 40 people was surveyed from the population a significant number of times. In which interval will 68% of the sample means occur?

between 55.89% and 58.11%

between 56.45% and 57.55%

between 56.54% and 57.46%

between 56.07% and 57.93%

Source: brainly.com/question/1068489

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Mean percentage of a population of people eating out at least once a week  = 57%

Standard deviation = 3.5%

Sample size = 40

Confidence level = 68%

2. In which interval will 68% of the sample means occur?

For answering this question, we should find out the standard deviation of the sample, using this formula:

Standard deviation of the sample = Standard deviation of the population/√Sample size

Standard deviation of the sample = 3.5/√40

Standard deviation of the sample = 3.5/6.32

Standard deviation of the sample = 0.55

Let's recall that a confidence level of 68% means that 68% of the sample data would have a value between the mean - 1 time the standard deviation of the sample and the mean  + 1 time the standard deviation of the sample. Thus:

57 - 1 * 0.55 = 57 - 0.55 = 56.45

57 + 1  * 0.55 = 57 + 0.55 = 57.55

<u>The correct answer is B. between 56.45% and 57.55% </u>

7 0
3 years ago
The shop charges $60 per hour and 7% sales tax on parts (no tax on labor). The total cost of the repair is $180.80. A. True B. F
Dmitry_Shevchenko [17]
The right answer if false
7 0
3 years ago
3/5 and 0.4. Which number is the smallest?
jeyben [28]
0.4 is the answer, 3/5= 0.6
6 0
3 years ago
2) -7(10b+4)-3(-6b+ 5)
goldenfox [79]
The answer to the question is
52b - 43
3 0
3 years ago
Read 2 more answers
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