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AlekseyPX
2 years ago
15

Item 7A large pool has a faucet to allow water to enter the pool and a drain to allow water to leave the pool.Each minute, the f

aucet allows 1423 gallons of water to enter the pool, and the drain allows 1634 gallons to leave the pool.What is the change in the amount of water in the pool after 112 minutes?
Mathematics
2 answers:
n200080 [17]2 years ago
6 0

Answer:

-3 1/8

Step-by-step explanation:

I took the test and it was correct test was unit 3

andre [41]2 years ago
5 0

Answer:

-3 1/8

Step-by-step explanation:

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Let E = {(x, y) e R2|xy > 0}. Determine whether E is a subspace of R2 . X3
gayaneshka [121]

Answer:

E is not a subspace of \mathbb{R}^2

Step-by-step explanation:

E is not a subspace of  \mathbb{R}^2

In order to see this, we must find two points (a,b), (c,d) in  E such that (a,b) + (c,d) is not in E.

Consider

(a,b) = (1,1)

(c,d) = (-1,-1)

It is easy to see that both (a,b) and (c,d) are in E since 1*1>0 and (1-)*(-1)>0.  

But (a,b) + (c,d) = (1-1, 1-1) = (0,0)

and (0,0) is not in E.

By the way, it can be proved that in any vector space all sub spaces must have the vector zero.

5 0
3 years ago
Which line is parallel to y = 1/2x + 3?
Cloud [144]

Answer

y=1/2x-5

Step-by-step explanation:

any line with a 1/2 must be parallel also it cannot be the same line or they wont be parallel

3 0
3 years ago
-2(3x+5y)=10 in slope intercept form
lesantik [10]

Answer:

The equation in the slope-intercept form is:

  • y = -3/5x - 1

Step-by-step explanation:

Given the equation

-2(3x+5y)=10

We know that the slope-intercept form of a line equation is

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Writing the equation in slope-intercept form

-2(3x+5y)=10

-6x -10y = 10

Add 6x to both sides

-6x -10y + 6x = 10 +  6x

-10y = 10 + 6x

Divide both sides by -10

-10y / -10 = (10 + 6x) / -10

y = -3/5x - 1

Thus, the equation in the slope-intercept form is:

  • y = -3/5x - 1
4 0
2 years ago
The cost of sending an overnight package from Los Angeles to Miami is $26.30 for a package weighing up to but not including 1 po
Phoenix [80]

Answer:

The answer is shown in the pic.

Step-by-step explanation:

The cost model will have a fixed cost of $26.30 for 0 ≤ x ≤ 1 lb and variable cost of $4.00/lb for x > 1.

As seen on the pic, the graph will be that of the greatest integer function that is vertically stretched by a factor 4.00 & shifted 26.30 units upward.

7 0
3 years ago
How many even prime numbers are 0 1 2 3
matrenka [14]
A prime number can <span>be divided evenly only by 1, or itself. </span>
<span>And it must be a whole number greater than 1.

Therefore, the prime numbers between 0, 1, 2, 3 are 

2 and 3 

and the only even one among those two is two, so your answer would be One. </span>
7 0
3 years ago
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