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Harman [31]
3 years ago
11

Right any equation in slope intercept for the line that passes through (0,-2) And is parallel to the line whose equation is 3x+5

y=3
Mathematics
1 answer:
mars1129 [50]3 years ago
4 0



slope-intercept form: Y-Y1=m(X-X1) where m= slope

First find m: since the unknown equation is parallel to 3x=5y+3, set the later equation to y= form to find the slope ->

3x-3=5y+3-3

(3x-3)/5=5y/5

y= 3/5x-3/5

so m=3/5

 

Then plug in the coordinates (0,2) into the slope-intercept form and use your m, and you're done :D

Y-2= 3/5(x-0)

and you can simplify that into a y= form:

y=3/5x+2

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How many grams of NH3 are required to produce 4.65 g of HF
nignag [31]

1.326 grams of NH3 are required to produce 4.65 g of HF.

Step-by-step explanation:

Balanced chemical reaction is written first to know the number of moles taking part in original reaction.

NH3 +3 F2 ⇒3 HF  +  NF3

Given:

mass of HF = 4.65

First the number of moles of HF in 4.65 grams is calculated by using the formula:

number of moles (n) = \frac{mass}{atomic mass of 1 mole}

atomic mass of HF = 20 grams/mole

putting the values in the above equation number of moles can be found.

n = \frac{4.65}{20}

  = 0.235 moles of HF are given.

From the equation it can be said that:

1 mole of NH3 reacts to form 3 moles of HF

so, x moles of NH3 would react to form 0.235 moles of HF

\frac{3}{1} = \frac{0.235}{x}

3x = 0.235

x = \frac{0.235}{3}

x = 0.078 moles of NH3 is required.

The moles are converted to mass by applying the formula:

mass = atomic mass X number of moles (atomic mass of NH3 = 17 grams/mole)

        putting the values in the formula

mass = 17 X 0.078

mass = 1.326 grams

8 0
3 years ago
Find an ordered pair (x,y) that is a solution to the equation.<br> x-3y=9<br> (x,y)= ?
Gemiola [76]

Answer:

(9,-3)

Step-by-step explanation:

7 0
3 years ago
Help fast please :) :) :) :) :)
zavuch27 [327]
Yeah I’m also not %100 but I agree with the first person, #3
7 0
3 years ago
What type of angles are these (one question)
Natali [406]

Answer:

Linear pair.

Step-by-step explanation:

8 0
3 years ago
Logarithmic and Exponential Forms of Equations In Exercise, write the logarithmic equation as an exponential equation, or vice v
Nata [24]

Answer:

12 = e^{2.4849}

Step-by-step explanation:

For this case we have the following expression:

ln(12) = 2.4849

We need to remember that the natural log and the exponentiation with the base the euler number e are inverse operations, and if we apply exponentiation on both sides of the equation we got this:

e^{ln(12)} = e^{2.4849}

We have the identity operator for this e^{ln(x)}= x

12 = e^{2.4849}

And that would be our final answer for this case.

6 0
3 years ago
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