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cestrela7 [59]
3 years ago
15

Julie is enjoying the pool and hot tub at her hotel. She likes jumping from the colt 65° pool into the hot 107° hot tub. What is

the temperature difference Julie is experiencing as she moves from pool to hot tub?
Mathematics
1 answer:
Svetllana [295]3 years ago
3 0

Answer:

42

Step-by-step explanation:

Because she is moving from a 65 degree pool into a 107 degree hot tub so there is a 42 degree difference when she moves to the hot tub from the pool.

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Line $1$ represents the graph of $3x + 4y = -14$. Line $2$ passes through the point $(-5,7)$, and is perpendicular to line $1$.
Sophie [7]

Answer:

15

Step-by-step explanation:

First, solve for Line 1

3x + 4y = -14

<em>move the x to the right of the equation</em>

4y = -3x - 14

<em>divide the whole equation by 4 </em>

y = -3/4x - 14/4

<u>Line 1 is y = -3/4x - 7/2 </u>

Then, solve for Line 2

Since Line 2 is perpendicular, change the sign of the slope of Line 1 and then get the reciprocal of that.

-3/4 to 3/4 to 4/3

4/3 is the slope of Line 2.

Now, we want to find what the b of the equation is, so we can plug in our x (-5) and our y (7) into the y=mx+b equation to find b. The 4/3 is the m or the slope.

y = mx + b

<em>plug in the y, m, and x into the equation</em>

7 = (4/3)(-5) + b

<em>multiply the m and x together </em>

7 = -20/3 + b

<em>add 20/3 to both sides so it will cancel out on the right of the equation and be added to the 7 on the left of the equation</em>

<u>41/3 = b </u>

So, m = 4/3 and b = 41/3

Add them together and you get 45/3 or 15.

I hope this helped!

8 0
3 years ago
Write these numbers in expanded form 2,897,926
mezya [45]

Answer:

2,000,000 + 800,000 + 90,000 + 7,000 + 900 + 20 + 6

Step-by-step explanation:

8 0
3 years ago
1/4 divided by 5/6 = 1/a× b/c
motikmotik

Answer:

a= 24b/5c b= 5ac/24 c= 24b/5a

Step-by-step explanation:

Put the problem into a calculator that can solve with variables.

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kicyunya [14]

Answer:

No :)

Step-by-step explanation:

5 0
3 years ago
A scuba diver diving with an 80 cubic foot tank of air, needs to resurface when his air in the
Burka [1]

At sea level atmospheric pressure is 1 bar absolute (1 standard atmosphere =101 kPa=1.013 bars). The weight of the atmosphere exerts a pressure which will support a column of water 10 m high; 10 m under water the pressure on a diver is 200 kPa. The volume of gas in an early diving bell full of air at sea level is halved at 10 m according to Boyle’s law; at 20 m pressure is 300 kPa absolute and the gas is compressed into one third the volume.

Dry air is composed of roughly 21% oxygen, 78% nitrogen, and 1% other gases. According to Dalton’s law the partial pressure of oxygen at any depth will be 21% of the total pressure exerted by the air and the partial pressure of nitrogen will be 78% of total pressure.

Gases dissolve in the liquid with which they are in contact. Nitrogen is fat soluble and at sea level we have several litres dissolved in our bodies. If the partial pressure of nitrogen is doubled (by breathing air at 10 m depth) for long enough for equilibration to take place we will contain twice as many dissolved nitrogen molecules as at sea level.

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