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Helen [10]
3 years ago
7

Help Me For Number 9 through 14 and also it supposed to be Inequality

Mathematics
1 answer:
alexandr402 [8]3 years ago
7 0
Fdsxcgfgvbfnfgnbhdfgbd fg dfg
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A tunnel is in the shape of a parabola. The maximum height is 31 m and it is 13 m wide at the base as shown below.
yan [13]
Using the given values from the problem and the illustration, three points are known which are (0,0), (6.5,-31), (-6.5,-31). The first step in solving this problem is to determine the equation of the parabola.
y = ax²
-31 = a(6.5)²
-31 = 42.25a 
a = -31/42.25 
a = -124/169 

Therefore, the equation of the parabola is y = (-124/169)x². The value 4.5 is then substituted in the equation as x to get the answer which is 16.14 meters.
6 0
3 years ago
Please need HELP????????????<br> THIS IS DO TODAY IN ONE HOUR PLEASE HELP
ExtremeBDS [4]

Answer:-0.2

Step-by-step explanation:

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4 0
3 years ago
The city park in which Allen plays is a square and measures exactly one million square feet. Which side dimensions produce the m
valentina_108 [34]
A- 998.8×997.7=996502.76
B- 998.84×997.73=996572.6332
C- 998.843×997.731=996576.6252
D - 999×998=997002

So D is the answer
4 0
3 years ago
last week 24% of the campers at a state park were visiting from out of state this weekend additional 12% are from out of state i
lesya692 [45]
Work: x/175=12%/100
multiply 175 by 2 and then you divide it by 100
answer: 21 are visiting from out of state.
5 0
3 years ago
Pls help me on this question
Anna35 [415]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
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