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zavuch27 [327]
3 years ago
5

A standard bathtub holds 60 gallons of water. A full tub drains 12 gallons per minute. Which of the following tables best repres

ents the situation?

Mathematics
1 answer:
masya89 [10]3 years ago
5 0

J.

x represents the minutes and y shows how many gallons over that time.

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Let f be the function given by f(x) = x+4(x−1)(x+3) on the closed interval [−5,5]. On which closed interval is the function f gu
Vlad [161]

Answer:

Step-by-step explanation:

f(x)=x+4(x^2+2x-3)=4x^2+9x-12

f'(x)=8x+9

f'(x)=0,gives x=-9/8

f(-5)=-5+4(-5-1)(-5+3)=-5+4*-6*-2=43

f(-9/8)=-9/8+4(-9/8-1)(-9/8+3)

=-9/8+4*-17/8*15/8

=-9/8-255/16

=-273/16=-17 1/16

f(5)=4*5^2+9*5-12=100+45-12=133

absolute maximum=133

absolute minimum=-17 1/16

6 0
3 years ago
Simplify -7y(4-y)<br> plz also include explanation
Lana71 [14]
Use distributive property
-28y+8y= -20y

6 0
3 years ago
Need help asap thanks
Ymorist [56]

Answer:

A

Step-by-step explanation:

for a right angled triangle, the sum of the square of the two sides should be equal to the square of the hypotenuse. If this rule does not hold, the dimensions do not represent the side of a right angled triangle.

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

4² + 10² ≠ 16²

6² + 12² = 13²

7² + 24² = 25²

8² + 15² = 17²

8 0
3 years ago
En una tienda se anuncia la rebaja de 20% en todos sus artículos . Rafael elije una camisa y al llegar a la caja le informan que
dimulka [17.4K]

Responder:

$ 750

Explicación paso a paso:

Dado que :

Descuento en todos los artículos = 20%

Descuento adicional dado = 15%

Monto final pagado por la camisa = $ 510

Precio de la camiseta sin descuento:

Sea el precio inicial de la camisa = x

Primer descuento obtenido = 20%

Precio pagado después de un descuento adicional del 15%

Primer descuento:

(1 - 0,20) * x = 0,8x

Segundo descuento:

(1 - 0,15) * 0,8x = 510

0,85 * 0,8x = 510

0,68x = 510

x = 510 / 0,68

x = $ 750

7 0
2 years ago
It takes la’mya 4 hours to knit 2 yards of a blanket . How many yards can she knit in one hour ?
shtirl [24]

Answer:

she can knit 1/2 a yard of a blanket in 1 hour.

So it would look like this

1/2 a yard of blanket

-----

1 hour

It would be, she can knit one half of a yard of blanket in one hour

one half over oner hour

6 0
3 years ago
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