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3 years ago

PLS HELP THIS IS TIMED What is the range of f(x)???

Mathematics

1 answer:

ASHA 777 [7]3 years ago

3 0

Answer:

I would say option 2 is correct

Step-by-step explanation:

The lowest f(x) can possibly be is -∞ and the highest it can possibly is 4. We can write this as what is written in answer 2 with f(x) being greater than -∞ but less than or equal to 4.

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Which are the solutions of x2 = 19x + 1?

Finger [1]

Answer:

$(\frac{19-\sqrt{365}} {2},\frac{19+\sqrt{365}} {2})$

Step-by-step explanation:

we have

$x^2=19x+1$

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-x^{2}-19x-1=0$

$a=1\\b=-19\\c=-1$

substitute in the formula

$x=\frac{-(-19)\pm\sqrt{-19^{2}-4(1)(-1)}} {2(1)}$

$x=\frac{19\pm\sqrt{365}} {2}$

$x=\frac{19+\sqrt{365}} {2}$

$x=\frac{19-\sqrt{365}} {2}$

$(\frac{19-\sqrt{365}} {2},\frac{19+\sqrt{365}} {2})$

therefore

StartFraction 19 minus StartRoot 365 EndRoot Over 2 EndFraction comma StartFraction 19 + StartRoot 365 EndRoot Over 2 EndFraction

6 0

3 years ago

Read 2 more answers

What is the consequence of L'hopital's Rule?

arlik [135]

Answer:

So, L'Hospital's Rule tells us that if we have an indeterminate form 0/0 or ∞/∞ all we need to do is differentiate the numerator and differentiate the denominator and then take the limit. (Brainliest? :3)

Step-by-step explanation:

8 0

2 years ago

PLS HELP Leo is looking at two different savings plans. The first plan requires an initial deposit of $500 and grows at an annua

White raven [17]

Answer:

First and Second option choices

Step-by-step Explanation:

1st case:

Initial deposit (P) = 500

Annual interest rate (r) = 2.5%

Account balance after x years, y = P(1+r/100)×

y = 500(1+2.5/100)×

y = 500(1+0.025)×

y = 500(1.025)×

2nd case:

Initial deposit (P) = 400

Annual interest rate (r) = 2%

Account balance after x years, y = P(1+r/100)×

y = 400(1+2/100)×

y = 400(1+0.02)×

y = 400(1.02)×

8 0

2 years ago

Which one is correct?

galina1969 [7]

Answer:

720cm^2

Step-by-step explanation:

i dont think this is right answer

7 0

2 years ago

Read 2 more answers

There is 5/6 of an apple pie, tomorrow Victor will eat 1/6 of the pie left. How much of the whole pie will be left after he eat

Alexeev081 [22]

2/3 of the pie will be left

6 0

2 years ago