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wariber [46]
3 years ago
11

Hello! :)

Mathematics
1 answer:
Nutka1998 [239]3 years ago
7 0
The answer is decreasing and linear.Therefore B.Please mark me brainliest im 100% sure it’s the right answer.
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What are the domain and range of f(x) = |x + 6|?
san4es73 [151]

9514 1404 393

Answer:

  • domain: all real numbers
  • range: y ≥ 0

Step-by-step explanation:

The function is defined for all values of x, so its domain is all real numbers.

The function can produce values of f(x) that are 0 or greater, so its range is ...

  y ≥ 0

4 0
2 years ago
A certain cylindrical tank holds 20,000 gallons of water which can be drained from the bottom of the tank in 20 minutes the volu
zalisa [80]
Given that the volume of water remaining in the tank after t minutes is given by the function

V(t)=20,000\left(1- \frac{t}{20} \right)^2

where V is in gallons, 0 ≤ t ≤ 20 is in minutes, and t = 0 represents the instant the tank starts draining.

The rate at which water is draining four and a half minutes after it begins is given by

\left.
 \frac{dV}{dt} \right|_{t=4 \frac{1}{2} = \frac{9}{2} 
}=\left[40,000\left(1- \frac{t}{20} \right)\left(- \frac{1}{20} 
\right)\right]_{t= \frac{9}{2} } \\  \\ =\left[-2,000\left(1- 
\frac{t}{20} \right)\right]_{t= \frac{9}{2} }=-2,000\left(1- 
\frac{4.5}{20} \right) \\  \\ =-2,000(1-0.225)=-2,000(0.775)=-1,550\, 
gallons\ per\ minute

Therefore, the water is draining at a rate of 1,550 gallons per minute four ans a half minutes after it begins.

Answer option E is the correct answer.
4 0
2 years ago
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, usi
Ann [662]
The answer is B. because if u add 11to -8, it becomes 3 andthe other side will already be 3. so 3=3.
8 0
3 years ago
If 5 potatoes together have a mass of 1 kilogram and 8 pears together have a mass of 1200 grams, which has the greater mass, a p
lord [1]
The Potato has more mass
7 0
3 years ago
A department store is having a sale of 20% off of all kitchen appliances. What is the sale price for a $250 microwave?
IgorC [24]

Answer:

200

Step-by-step explanation:

The price is 100%-20%=80% of the original.

So, 250*0.8 = 200

3 0
3 years ago
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