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Xelga [282]
3 years ago
5

What is the vertex of 7x^2 + 14 + 9

Mathematics
1 answer:
koban [17]3 years ago
3 0

Answer:

(0, 23)

Step-by-step explanation:

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A group of 6 students is surveying their classmates to get feedback about different clubs they're involved in. If each surveys m
galben [10]

Answer:

The domain would be given by <u>D = {X ≥ 2} X = [2, Z].</u> Since the variable Z is the number of children in the school. And the 6 children should not survey the same person, it would be Z / 6 for each interviewer.

Step-by-step explanation:

- If the group of children surveys more than 2 classmates, it means that the number with which the survey begins is 12 students.

And since the maximum number of students in the school is given by the variable of Z, then Z is the number with which the domain closes.

The rank would be given by the set of [2, Z]

Z / 6 being the maximum number of children surveyed by 1 interviewer.

8 0
3 years ago
Can you make all the numbers from 1 to 20 using 4 fours?
Effectus [21]

Answer: no you can't you can only use 5 numbers when going by 4's

Step-by-step explanation: 4, 8, 12, 16, 20

8 0
3 years ago
Read 2 more answers
Haaaalppppppppppppppppp
Marizza181 [45]

Answer:

50-2.5t=w. no, the water will all have drained by then.

Step-by-step explanation:

2.5 per min so

min=t

therefore 2.5t

theres 50 quarts of water

50-2.5t = w (water left in the tank)

_____________________________________-

part 2,

2.5*30 = 75, and 50<75

this is impossible.

7 0
4 years ago
In a study of
o-na [289]
We know that:
Mean = 82 mm and SD = 10 mm ( standard deviation )
82 - 3 * SD = 82 - 3 * 10 = 82 - 30 = 52 mm
82 + 3 * SD = 82 + 3 * 10 = 82 + 30 = 112 mm
Population between 52 and 112 mm is within +/- 3 standard deviations from the mean.
By the 66- 95 - 99.7 % rule it is: 99.7% of the test group.
0.977 * 500 = 498.5
Answer:
99.7 % of the test group have a diastolic pressure between 52 and 112 mm, or 498 men. 
5 0
4 years ago
paige spent $7.55 on some report covers and one lanyard at the spirit shop. Each report cover costs $0.35 and the layard cost $6
fomenos

Answer:

The answer is 3.

Step-by-step explanation:

7.55-6.50=1.05

1.05/.35=3

8 0
3 years ago
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