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tamaranim1 [39]
3 years ago
15

What would this equation be in vertex form? Show all steps please! :) y2 + 16x - 4y = -20

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0

Answer:

Liquid R has a mass of of 1 kg at a temperature of 30°c kept in a refrigerator to freeze . Given the specific heat capacity is 300 J kg-¹ °c-1 and the freezing point is 4°c . Calculate the heat release by liquid R.

Step-by-step explanation:

Liquid R has a mass of of 1 kg at a temperature of 30°c kept in a refrigerator to freeze . Given the specific heat capacity is 300 J kg-¹ °c-1 and the freezing point is 4°c . Calculate the heat release by liquid R.

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Help plz ooooooppppp
rjkz [21]

Answer:

4 minutes

Step-by-step explanation:

looks at the 8 gallon line and follow it over to the corresponding minute line

5 0
2 years ago
(6,5), 7x-3y=5 find the equation of the line that contains the given point and is parallel to the line. write the equation in sl
SVEN [57.7K]

Answer:

y = (7/3)x - 9

Step-by-step explanation:

1. Convert given equation to y=mx+b form --> y = (7/3)x - 5/3

2. Equation of new line --> y = (7/3)x + b

  • Note: 7/3 is the slope and for lines to be parallel they need the same slope so both equations have 7/3.

3. Plug in given values --> 5 = (7/3)(6) + b

4. Solve for b --> b = 5 - 14    b = -9

5. New line --> y = (7/3)x - 9

7 0
2 years ago
60 minutes is 20% of blank
leva [86]
60 = 0.20x
60/0.20 = x
300 = x <== so 60 minutes is 20% of 300 minutes
6 0
3 years ago
Identify the center and the radius of each.<br><br> x^+y^+26x-22y+281=0
inessss [21]

Answer:

Center (-13,11) , radius 3

Step-by-step explanation:

The given circle has equation

x^2+y^2+26x-22y+281=0

We compare this to the general equation.

x^2+y^2+2ax+2by+c=0

where (-a,-b) is the center.

This implies that;

2a=26

\Rightarrow a=13

2b=-22

b=-11

The center is therefore (-13,11)

The radius is given by

r=\sqrt{a^2+b^2-c}

r=\sqrt{13^2+(-11)^2-281}

r=\sqrt{9}

The radius is 3

3 0
3 years ago
If 3 is subtracted from twice a number, the result is 8 less than the number. Write an equation to solve this problem.
lakkis [162]
3 subtracted from twice a number=2x-3
8 less than the number=x-8
2x-3=x-8
x=-5
3 0
3 years ago
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