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4 years ago

14

6y+9-4y=-3 Please solve with work

2 answers:

Ronch [10]4 years ago

7 0

1)combine like terms
2) move 9 to the other side by subtracting 9
3) divide by the # that is in front of y - to both sides
answer you should get: -11/2

irinina [24]4 years ago

3 0

6y+9-4y=-3
6y-4y=2y
2y+9=-3
-9 -9
2y=-12
2/2 -12/2
Y=-6 should be the answer if I did it correctly

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How do you find the answer ?

jeka94

I think first you must Unification of denominatorsit will 60 for (3,4,5) so you will get
2\5 = 24\60
1\4 = 15\60
1\3 = 20 \60
then you divide each one apart then multiply by total number (3,800)
so :
24\60 * 3800 = 1520
15\60 * 3800 = 950
20 \60 * 3800 = 1267
_____
note : when you will gather results you will get Approximate number to 3800

i hope i helped

5 0

4 years ago

Please help me I need help please

MakcuM [25]

Answer:

p = 4

Step-by-step explanation:

Given equation:

$x^2+(p-3)y^2-4x+6y-16=0$

<u>Standard equation of a circle:</u>

$(x-a)^2+(y-b)^2=r^2$

(where $(a,b)$ is the centre of the circle, and $r$ is the radius)

If you expand this equation, you will see that the coefficient of $y^2$ is always one.

Therefore, $p-3=1$

$\implies p=1+3=4$

<u>Additional information</u>

To rewrite the given equation in the standard form:

$\implies x^2+y^2-4x+6y-16=0$

$\implies x^2-4x+y^2+6y=16$

$\implies (x-2)^2-4+(y+3)^2-9=16$

$\implies (x-2)^2+(y+3)^2=16+4+9$

$\implies (x-2)^2+(y+3)^2=29$

So this is a circle with centre (2, -3) and radius √29

3 0

2 years ago

Calculate the area and circumference of each circle.

vlabodo [156]

Circle 1 area≈ 2.01 yd
circle 1 circumference≈ 5.024 yd
circle 2 area≈ 2.54 yd
circle 2 circumference≈ 5.652 yd

3 0

3 years ago

What is the area of the polygon?<br> I will mark brainliest

Ghella [55]

Answer:

The answer is B. 1,620

Step-by-step explanation:

I just know it did the math

3 0

3 years ago

Read 2 more answers

Find the surface area of a cylinder with a radius of 5 cm and a height of 30 cm. Use 3.14

Juli2301 [7.4K]

Whole formula 2*pi*radius^2 + 2*pi*radius*height:

157+942= 1099

SA= 1099

3 0

3 years ago