Question 10 of 25

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

5 0

Answer:

c 510

Step-by-step explanation:

hope this helps

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Determine whether f(x)=2x^2 -6x +k has a maximum or minimum value, and determine the maximum or minimum value.

kicyunya [14]

Since it is a parabola if there is no negative sign in front of the equation then it will have a minimum.

The standard form of a quadratic is ax^2+bx+c
When a>0 then the equation will have a minimum.
When a<0 then the equation will have a maximum.
Honestly I have no idea what to do after that. The k is throwing me off.

4 0

3 years ago

Which value of x would make the rate of change between the two points -5? (12,7) and (x,17)

wolverine [178]

Step-by-step explanation:

$\sqrt{(12 - x) {}^{2} + {(7 - 17) {}^{2} } } = - 5\\ \\ \sqrt{144 + x {}^{2} - 24x + ( - 10) {}^{2} } = - 5 \\ \\ \sqrt{144 + x {}^{2} - 24x + 100} = - 5 \\ \\ 244 + x {}^{2} - 24x = 25 \\ \\ {?}^{2}$

$you \: can \: now \\ \: continue \: evaluating \: it$

4 0

2 years ago

The world's largest marathon, The New York City Marathon, is held on the first Sunday in November each year. Between 2 million a

e-lub [12.9K]

Answer:

25% is the percent error.

Step-by-step explanation:

Given:

The world's largest marathon, The New York City Marathon, is held on the first Sunday in November each year. Between 2 million and 2.5 million spectators will line the streets to cheer on the marathon runners.

Now, to find the percent error.

As given, between 2 million and 2.5 million spectators will line the streets to cheer on the marathon runners.

The actual measure = 2 million.

The estimated measure = 2.5 million.

So, the error = $2.5-2=0.5\ million.$