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tatyana61 [14]
3 years ago
12

What is the range of the quadratic function f(x)=2-x^2

Mathematics
1 answer:
dimulka [17.4K]3 years ago
7 0
(-infinity, 2]. Use the infinity symbol and not the word
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It takes Dwight 1 1/3 hours to run the sunshine trail. Mike 3 1/5 hours to walk the same trail. How many times as long does it t
Anit [1.1K]

For this case we convert the mixed numbers to fractions:

Dwight:1 \frac {1} {3} = \frac {3 * 1 + 1} {3} = \frac {4} {3} = 1.33

Mike:3 \frac {1} {5} = \frac {5 * 3 + 1} {5} = \frac {16} {5} = 3.2

It is observed, that in fact, Mike takes more time to travel the road.

We subtract to know how much more time it takes Mike:

\frac {16} {5} - \frac {4} {3} = \frac {48-20} {15} = \frac {28} {15}

So, Mike takes \frac {28} {15} hours more than Dwight to walk the road.

Answer:

Mike takes\frac {28} {15}hours longer than Dwight to walk the road.

7 0
3 years ago
Help bbbbbbbbbbbbbbbbbbb
Sergio [31]

Answer:

1

Step-by-step explanation:

it is 6/6

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6 0
2 years ago
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monitta

Answer:

b

Step-by-step explanation:

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3 years ago
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Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost functio
Oksana_A [137]
Hi.

The answer is:

<em />b. c(x) = 2.00 + 0.50<em>x</em>

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4 years ago
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Choose the equation of the line that contains the points (1,-1) and (2,2)
natka813 [3]
(1,-1)(2,2)
slope = (2 - (-1) / (2 - 1) = 3/1 = 3

y = mx + b
slope(m) = 3
use either of ur points...(2,2)...x = 2 and y = 2
now we sub and find b, the y int
2 = 3(2) + b
2 = 6 + b
2 - 6 = b
-4 = b

so ur equation is : y = 3x - 4
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3 years ago
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