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4 years ago

Please help I need it today please help

Mathematics

1 answer:

Rufina [12.5K]4 years ago

6 0

0-2+9=7 is the answer I think

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Solving equation r^2+5r=-4

shusha [124]

$r^2+5r=-4\\\\r^2+5r+4=0\\\\r^2+r+4r+4=0\\\\r(r+1)+4(r+1)=0\\\\(r+4)(r+1)=0\\\\r=-4 \vee r=-1$

3 0

4 years ago

Need help on these appreciate it

Vitek1552 [10]

Answer:

Circle B:

$(x+4)^2+(y+3)^2=4$

Circle F:

$(x-4)^2+(y-1)^2=16$

Step-by-step explanation:

We can write the equation of a circle equation with center on (h,k) and radius r as:

$(x-h)^2+(y-k)^2=r^2$

Then, we analyze the circle will have for the circle B:

- It has a center in x=-4 and y=-3.

- It radius can be calculated from the distance from the center (x,y)=(-4,-3) to one of its points (x,y)=(-4, -1). Then, its radius is r=2.

Then, we can write the equation as:

$(x-h)^2+(y-k)^2=r^2\\\\h=-4\\k=-3\\r=2\\\\(x+4)^2+(y+3)^2=4$

we analyze the circle will have for the circle F:

- It has a center in x=4 and y=1.

- It radius can be calculated from the distance from the center (x,y)=(4, 1) to one of its points (x,y)=(0, 1). Then, its radius is r=4.

Then, we can write the equation as:

$(x-h)^2+(y-k)^2=r^2\\\\h=4\\k=1\\r=4\\\\(x-4)^2+(y-1)^2=16$

7 0

4 years ago

8 divided by 32.16?<br> I need help with this, please answer as fast as possible!!

lesya [120]

The answer is 0.248756

3 0

3 years ago

Anthony has the equations of three lines: A,B and C. When he solves a system with equations A and B , he gets no solution. When

Olegator [25]

He will get no solutions and this is for the following reasons:
1. A and B have no solutions, so they must be parallel.
2. B and C have infinite solutions, so they must represent the same line.

8 0

3 years ago

0.52 25/36 61.24% 0.5724 least to greatest

Aliun [14]

Answer:

0.52, 0.5724, 61.24%, 25/36

Step-by-step explanation:

I need brainliest pls

8 0

3 years ago