1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Romashka-Z-Leto [24]
3 years ago
12

How long will it take to fill the tank with 40 gallons of water? Explain your reasoning.

Mathematics
2 answers:
Vlada [557]3 years ago
8 0

Answer:

Q1) Answer: After 3 minutes there will be 4.8 gallons of water in the fish tank. Q2) Answer: 40 gallons of water will be filled after 25 minutes.

Sergeu [11.5K]3 years ago
8 0

Answer:

Depends on water pressure, but it should completely fill in 15-20 minutes. the water should be hot in another 20-25 minutes if it has been run completely empty.

Step-by-step explanation:

You might be interested in
4
GaryK [48]

Answer:

5/6

Step-by-step explanation:

4/6 + 1/6 = 5/6

4 0
3 years ago
Help please!
nekit [7.7K]
Yes. It says the sum of 2 multiplied by any number replacing the x will be less than 8.
x will need to be less than 4:
x<4
3 0
2 years ago
What is the equation of the parabola with focus (-2, 2) and directrix y = -1?
arsen [322]

Answer:

(x+2)^2=6(y-1/2)

Step-by-step explanation:

7 0
3 years ago
What is 8.25+1/4w=10.75
stepladder [879]

Answer:

w = 10

Step-by-step explanation:

Solve for w:

w/4 + 8.25 = 10.75

Put each term in w/4 + 8.25 over the common denominator 4: w/4 + 8.25 = w/4 + 33/4:

w/4 + 33/4 = 10.75

w/4 + 33/4 = (w + 33)/4:

(w + 33)/4 = 10.75

Multiply both sides of (w + 33)/4 = 10.75 by 4:

(4 (w + 33))/4 = 4×10.75

(4 (w + 33))/4 = 4/4×(w + 33) = w + 33:

w + 33 = 4×10.75

4×10.75 = 43:

w + 33 = 43

Subtract 33 from both sides:

w + (33 - 33) = 43 - 33

33 - 33 = 0:

w = 43 - 33

43 - 33 = 10:

Answer: w = 10

7 0
3 years ago
PLEASE HELP! WILL MARK BRAINLIEST!
makkiz [27]

Answer:

The maximum height a rider will experience is 55 feet.

Step-by-step explanation:

Let's start writing the function that defines the path of a seat on the new Ferris wheel. This function will depend of the variable ''t'' which is time.

X(t)=(x,y)

In which X(t) are the coordinates of the seat (the x - coordinate and the y - coordinate) that depend from time.

''x'' and ''y'' are functions that depend from the variable ''t''.

For this exercise :

X(t)=[-25sin(\frac{\pi}{30}t);-25cos(\frac{\pi}{30}t)+30]

In order to find the maximum height a rider will experience we will study the behaviour of the y - component from the function X(t).

The function to study is y(t)=-25cos(\frac{\pi}{30}t)+30

To find its maximum, we will derivate this function and equalize it to 0. Doing this, we will find the ''critical points'' from the function.

⇒ y(t)=-25cos(\frac{\pi}{30}t)+30  ⇒

y'(t)=\frac{5}{6}\pi sin(\frac{\pi}{30}t)

Now we equalize y'(t) to 0 ⇒

y'(t)=0 ⇒ \frac{5}{6}\pi sin(\frac{\pi}{30}t)=0

In this case it is easier to look for the values of ''t'' that verify :

sin(\frac{\pi}{30}t)=0

Now we need to find the values of ''t''. We know that :

sin(0)=0\\\\sin(\pi)=0\\sin(-\pi)=0

Therefore we can write the following equivalent equations :

\frac{\pi}{30}t=0 (I)

\frac{\pi}{30}t=\pi (II)

\frac{\pi}{30}t=-\pi (III)

From (I) we obtain t_{1}=0

From (II) we obtain t_{2}=30

And finally from (III) we obtain t_{3}=-30

We found the three critical points of y(t). To see if they are either maximum or minimum we will use the second derivative test. Let's calculate the second derivate of y(t) :

y'(t)=\frac{5}{6}\pi sin(\frac{\pi}{30}t) ⇒

y''(t)=\frac{\pi ^{2}}{36}cos(\frac{\pi }{30}t)

Now given that we have an arbitrary critical point ''t_{n}'' ⇒

If y''(t_{n})>0  then we will have a minimun at t_{n}

If y''(t_{n}) then we will have a maximum at t_{n}

Using the second derivative test with t_{1},t_{2} and t_{3} ⇒

y''(t_{1})=y''(0)=\frac{\pi ^{2}}{36} >0 ⇒ We have a minimum for t_{1}=0

y''(t_{2})=y''(30)=\frac{-\pi^{2}}{36} ⇒ We have a maximum for t_{2}=30

y''(t_{3})=y''(-30)=\frac{-\pi^{2}}{36} ⇒ We have a maximum for t_{3}=-30

The last step for this exercise will be to find the values of the maximums.

We can do this by replacing in the equation of y(t) the critical points t_{2} and t_{3} ⇒

y(t_{2})=y(30)=55

y(t_{3})=y(-30)=55

We found out that the maximum height a rider will experience is 55 feet.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Leslie is making a fruit salad she uses 3 cups of grapes a cup of cantaloupe 4 cups of pineapple 6 cups of strawberries and 18 c
    12·1 answer
  • If you change this expression to a fraction, 7.25 will be : 20/7.25.
    8·1 answer
  • Round 16051 to thousand
    14·1 answer
  • 3/2 p - 14 = p + 13 <br> Please help
    14·1 answer
  • Anyone know this two questions I can't figure this out
    15·2 answers
  • Using the protractor, find the angle measure.
    14·1 answer
  • I need x and the two angles
    5·1 answer
  • The perimeter of a rectangle is 80 inches. The length of the rectangle is 12 inches.
    5·2 answers
  • I dont know what this problem is simplified
    6·1 answer
  • 3. Which of the following is an exponential function?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!