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3 years ago

If a function f is increasing on (a,b) and decreasing (b,c), then what can be said about the local extremism of f on (a,c)?

Mathematics

1 answer:

finlep [7]3 years ago

7 0

Answer:

The point (b, f(b)) is a local maximum.

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The function y = -2(x-3)^2+4 shows the daily profit (in hundreds of dollars) of a hot dog stand, where x ist the price of a hot

Blababa [14]

Answer:

Option A The zeros are the hot dog prices that give $0.00 profit (no profit)

Option C. Zeros at $x=3(+/-)\sqrt{2}$

Step-by-step explanation:

we know that

The zeros of the function are the values of x when the value of y is equal to zero

In this problem

The zeros of the function are the price of a hot dog (in dollars) when the daily profit (in hundreds of dollars) of a hot dog stand are zero

we have

$y=-2(x-3)^{2}+4$

Find the zeros

equate the equation to zero

$0=-2(x-3)^{2}+4$

$2(x-3)^{2}=4$

$(x-3)^{2}=2$

square root both sides

$x-3=(+/-)\sqrt{2}$

$x=3(+/-)\sqrt{2}$

6 0

3 years ago

A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 100 ml of a 2% solution and wishes to add some 8% so

son4ous [18]

Answer:

200 ml

Step-by-step explanation:

It's proportions basically.

frst off, 2% of 100 ml is 2 ml, so the 100 ml solution has 2 ml of Minoxidil.

Eventually we want 6/100 to be the porportion. so the total is going to be 100 (from the initial 100 ml) plus however much is needed x. And we want the amount of Minoxidil to be 2 + 8 percent of x. so this gets us the equation

6/100 = (2 + .08x)/(100+x) Then we solve

(100 + x) 6/100 = 2 + .08x

(100 + x) 6 = 200 + 8x

600 + 6x = 200 + 8x

400 = 2x

x = 200

so they should add 200 ml

You can check too. there is 100 + 200 ml of solution total and 2 + 16 ml of Minoxidil so that's 18/300 = 6/100

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3 years ago

Helppppp pleaseeee c: for brainliest

Alina [70]

Answer:

I have no idea how to answer this... :P

Sorry, I am quite a dummy.

4 0

2 years ago

Somebody explain pls!!!!!

Furkat [3]

Step-by-step explanation:

Using log properties

$log_{7}(rz {}^{12} )$

$log_{7}(r) + log_{7}(z {}^{12} )$

Then

$log_{7}(r) + 12 log_{7}(z)$

Plug in the knowns

$- 7.87 + 12( - 12.59)$

$- 158.95$

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1 year ago

HELP ME ASAP QUIZ

Gnoma [55]

Answer:

Step-by-step explanation:

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3 years ago