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gayaneshka [121]
3 years ago
12

Which of the following questions describes the equation 4n = -24?

Mathematics
1 answer:
Alona [7]3 years ago
3 0

Answer:

n = -6

Step-by-step explanation:

<u>Step 1:  Divide both sides by 4</u>

4n / 4 = -24 / 4

n = -6

Answer:  n = -6

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A NASA spacecraft measures the rate R of at which atmospheric pressure on Mars decreases with altitude. The result at a certain
AysviL [449]

Answer:

R = 0.0000498 \frac{KJ}{ m m^3}=0.0000498 \frac{KJ}{m^4}=4.98x10^{-5}\frac{KJ}{m^4}

Step-by-step explanation:

For this case we have the following value:

R = 0.0498 \frac{Kpa}{Km}

We can convert this first to \frac{Kpa}{m} like this:

R=0.0498 \frac{Kpa}{Km} *\frac{1km}{1000m}=0.0000498 \frac{Kpa}{m}

Now we use the fact the the pressure is defined as P =\frac{F}{A}, whre P is the pressure, F the force and A the area, so then Kpa= \frac{KN}{m^2} and then we can replace this:

R=0.0000498 \frac{KN}{m^3}

Now from definition of work we know that W= Fd where W is the work, F the force and d the distance, so then is equivalent KN =\frac{KJ}{m}

And if we replace this into the equation we got:

R = 0.0000498 \frac{KJ}{ m m^3}=0.0000498 \frac{KJ}{m^4}=4.98x10^{-5}\frac{KJ}{m^4}

4 0
3 years ago
Write an equation for each graph in a slope<br> Intercept form
artcher [175]

Answer:

y=2x-3

Step-by-step explanation:

Y-intercept can be read off the graph.

Slope can be determined using the formula:

y2-y1 divided by x2-x1 (Substitute co-ordinates)

6 0
3 years ago
Read 2 more answers
Convert 78% to a decimal
pychu [463]
The correct answer is 0.78. Hope this helps.
8 0
3 years ago
Read 2 more answers
Please help i am on a timer
meriva

Answer:

x^2 = 36

Step-by-step explanation:

logx ( 36) = 2

Rewrite this as an exponential equation

We know that loga(b) =c  as a^b =c

x^2 = 36

7 0
3 years ago
To dilute a solution that is 40% saline, a chemist combines it with a solution that is 15% saline. How much of each solution sho
KonstantinChe [14]

Answer:

60 ml of 40% saline and 90 ml of 15% saline

Step-by-step explanation:

We can call the amount of 40% solution x and the amount of 15% solution y.

x + y = 150 -- (1)

0.40x + 0.15y = 150 * 0.25 -- (2)  --- 150 * 0.25 = 37.5

40x + 15y = 3750 (Multiply (2) by 100 to get rid of decimals)

15x + 15y = 2250 -- (3) (Multiply (1) by 15)

25x = 1500           (Subtract (3) from (1)

x = 60

y = 150 - 60 = 90

3 0
3 years ago
Read 2 more answers
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