2 years ago

Help with these two math problems?

Mathematics

1 answer:

ludmilkaskok [199]2 years ago

3 0

Harold incorrectly completed the assignment.

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Could someone help with this?

Citrus2011 [14]

the answer is 4 and 7

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2 years ago

La funcion que representa el beneficio obtenido por una empresa si vende x unidades de uno de sus productos es f(x)= -70x^2+2800

DerKrebs [107]

Answer:

$20$

Step-by-step explanation:

La función es

$f(x)=-70x^2+2800x-45000$

Diferenciando con respecto a $x$ obtenemos

$f'(x)=-140x+2800$

Igualar con cero

$0=-140x+2800\\\Rightarrow x=\dfrac{2800}{140}\\\Rightarrow x=20$

Doble derivada de la función

$f''(x)=-140$

Entonces, la función es máxima cuando el número de unidades vendidas, $x=20$ ,

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2 years ago

Which choice gives the solution of this inequality?<br> 3t + 7 < 28

Butoxors [25]

Answer:7

Step-by-step explanation:

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2 years ago

Mr. and Mrs. Lorenzo want to buy a home valued at $213,500. If they have 18% of this amount saved for a down payment, how much h

romanna [79]

It would be: 213500 * 18/100
213500 * 0.18 = $38430

So, option D is your answer.

Hope this helps!

5 0

3 years ago

If f(x)=x^2+2x-4 and g(x)=3x+1 find f(g(x))=()x^2+()x+()

barxatty [35]

Answer:

9x^2+22x-2

Step-by-step explanation:

f(g(x))=(3x+1)^2+2(3x+1)-4

=9x^2+16x+6x+2-4

=9x^2+22x-2

to find the soultion of mentioned question you have to put the value of g(x) into f(x) and then solve it like normal ...

6 0

2 years ago