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Marrrta [24]
3 years ago
5

What is the graph of the equation? y=-x^2+2x+3

Mathematics
1 answer:
daser333 [38]3 years ago
3 0

Answer:

The graph is a parabola

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FiftyFifty adult men in the United States are randomly selected and measured for their body mass index​ (BMI). Based on that​ sa
Fynjy0 [20]

Answer: (23.3,\ 29.7)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\overline{x}\pm ME., where \overline{x} is the sample mean and ME is the margin of error .

Given : The sample mean : \overline{x}=26.5

Margin of error : ME=3.2

Then , the range of values​ (confidence interval) likely to contain the true value of the population parameter will be :-

26.5\pm 3.2=(26.5-3.2,\ 26.5+3.2)=(23.3,\ 29.7)

Hence, the range of values​ likely to contain the true value of the population parameter =  (23.3,\ 29.7)

3 0
3 years ago
Read 2 more answers
Which expression can be used to find 32% of 130?
ser-zykov [4K]

Answer:

130 times .32

Step-by-step explanation:

5 0
2 years ago
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Solve for x.<br> 79<br> (8x - 4)<br> 3<br> -(3x + 17)
Liono4ka [1.6K]

Answer:

-2.4

Step-by-step explanation:

maybe... i am 99.99% sure

6 0
2 years ago
One hundred people are surveyed and asked if they trust candidate A or candidate B or candidate C in a local election. People ar
ElenaW [278]

Answer:

5 people trust none of the candidates

Step-by-step explanation:

To know how many people surveyed trust none of the candidates we need to find:

  • People that trust all three candidates: 5
  • People that just trust candidate B and C: This is equal to people that trust candidate B and C less people that trust all three candidates. So it is equal to: 17 - 5 = 12
  • People that just trust candidate A and C: This is equal to people that trust candidate A and C less people that trust all three candidates. So it is equal to: 12 - 5 = 7
  • People that just trust candidate A and B: This is equal to people that trust candidate A and B less people that trust all three candidates. So it is equal to:  7 - 5 = 2
  • People that just trus candidate C: This is equal to the people that trust candidate C less people that just trust candidate B and C less people that just trust candidate A and C less people that trust all three candidates. So, it is equal to: 48 - 12 - 7 - 5 = 24
  • People that just trus candidate B: This is equal to the people that trust candidate B less people that just trust candidate B and C less people that just trust candidate A and B less people that trust all three candidates. So, it is equal to: 44 - 12 - 2 - 5 = 25
  • People that just trus candidate A: This is equal to the people that trust candidate A less people that just trust candidate A and C less people that just trust candidate A and B less people that trust all three candidates. So, it is equal to: 34 - 7 - 2 - 5 = 20

Therefore, we can calculate how many people surveyed trust at least one candidate by the sum of the previous quantities as:

5 + 12 + 7 + 2 + 24 + 25 + 20 = 95

Finally, there are 100 people surveyed and 95 people trust at least one candidate, so 5 people trust none of the candidates.

3 0
3 years ago
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Share $420 in the ratio of 2:5:7
arsen [322]

Answer:

If you split it up it would be 60, 150, 210

4 0
2 years ago
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