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raketka [301]
4 years ago
11

henry begins to drain a water tank by opening a valve. Then he opens another valve. Then he closes the first valve. He leaves th

e 2nd valve open until the tank is empty. Discrete or Continuous? ​
Mathematics
1 answer:
marin [14]4 years ago
4 0

Answer:

Continuous

Step-by-step explanation:

There is never a period of time when the water's flowing halts because the opening and closing of the first and second pipe are overlapping. Hope this helps (:

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WEDNESDAY: Use the quadratic formula to solve the following: 3x^2 - 6x-12 = 0*
Pepsi [2]

Answer:

a.) 3.236 or -1.236

Step-by-step explanation:

Used an online calculator for this answer...

Using the Quadratic Formula where

x = \frac{ -b \pm \sqrt{b^2 - 4ac}}{ 2a }\\x = \frac{ -(-6) \pm \sqrt{(-6)^2 - 4(3)(-12)}}{ 2(3) }\\x = \frac{ 6 \pm \sqrt{36 - -144}}{ 6 }\\x = \frac{ 6 \pm \sqrt{180}}{ 6 }

The discriminant b^2−4ac > 0

so, there are two real roots.

Simplify the radical...

x = \frac{ 6 \pm 6\sqrt{5}\, }{ 6 }\\x = \frac{ 6 }{ 6 } \pm \frac{6\sqrt{5}\, }{ 6 }\\x = 1 \pm \sqrt{5}\,

This simplifies to...

x = 3.23607\\x = -1.23607

3 0
4 years ago
An assembly worker can assemble 6 pillows per hour. The worker is paid $10.00 an hour. What is the direct labor cost per pillow?
LenaWriter [7]
It would be $10/6 per pillow = $1.66 per pillow
3 0
3 years ago
The price of a watch was increased by 20% to £144. What was the price before the increase
MAXImum [283]

Answer:

120 pounds

Step-by-step explanation:

Since the new cost is 144 pounds and this is 20% more,  this is 120% of the original price. Remember 100+20 = 120. To find the original price set up a proportion with these values:

Solve for the original price by cross multiplying numerator with denominator.

x(120) = 144(100)

120x = 14400

x= 120 pounds

3 0
3 years ago
Need help??????!!!!!!!!!
katrin [286]

Answer:

The answer for question 27 is a confusing one, but the one for question 28 is B! Hope this helps.

Step-by-step explanation:

5 0
3 years ago
In a room with 10 people, how many different handshakes are possible?
Ganezh [65]
45 handshakes are possible
7 0
3 years ago
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