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SSSSS [86.1K]
3 years ago
10

Help me find this out

Mathematics
1 answer:
erica [24]3 years ago
5 0

Answer:

B.) About 2 hours

Step-by-step explanation:

Well the Full volume of the tank is 1440 cubic feet. If you multiply 15 by sixty, thats 900. 900 is cubic feet per hour, so there are 1.6 times 900 in 1440. Therefore 1.6 hours to drain the whole thing and B is the closest answer.

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Amy is solving the equation using the steps shown.
Delicious77 [7]

The correct next step Amy could take is to factor (x^2 - 16) on the left side of the equation to yield (x + 4)(x – 4)(x + 2) = 0.

The equation is given as:

\mathbf{(x^2 - 16)(x + 2) = 0}

The possible next steps are:

1. Expand the equation as follows

\mathbf{x^3+2x^2-16x-32 = 0}

2. Express x^2 -16 as a difference of two squares as follows

\mathbf{(x + 4)(x- 4)(x + 2) = 0}

However, the correct step in this case is to factor x^2 - 16 as a difference of two squares to give \mathbf{(x + 4)(x- 4)(x + 2) = 0}

This is so, because the question says Amy is trying to solve for variable x.

This step will ensure that she gets the possible values of x, unlike expanding the whole equation .

Hence, the correct next step is \mathbf{(x + 4)(x- 4)(x + 2) = 0}

Read more about equations at:

brainly.com/question/7674413

7 0
2 years ago
You are playing the game "Hidden Treasure" and your hint is that the treasure is 9 spaces away from the point (0, 0). Which of t
Jlenok [28]

Answer:

(9, 0)

(-9, 0)

(0, 9)

(0, -9)

Step-by-step explanation:

8 0
2 years ago
Rate of change between (2,11) and (8,14)
SCORPION-xisa [38]

Answer:

1/2

Step-by-step explanation:

the rate of change is = the change in y/ the change in x

if the points are (2, 11) and (8, 14)  

Rate of change = (14-11) / (8-2) = 3 / 6 = 1/2

8 0
2 years ago
Please solve this ASAP for 30 points
e-lub [12.9K]

Answer:

welpp

Step-by-step explanation:

3 0
3 years ago
St=20 and s lies at 5 where could t be located ?
vovikov84 [41]
T could be located at 15 because 5 plus 15 equals 20
4 0
3 years ago
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