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3 years ago

Someone help i don't understand pls d

Mathematics

1 answer:

mixer [17]3 years ago

4 0

Answer all questions??

Step-by-step explanation:

b, c , a b,c,c,d

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castortr0y [4]

Answer:

2 5 7

Step-by-step explanation:

hopefully it helps sorry if it wrong

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2 years ago

What is this? (2 photos please look and just answer A, B, or C)

igomit [66]

I think the answer is C

7 0

2 years ago

Read 2 more answers

What is the distance between -2.2 , 8.4 on a number line

leonid [27]

Answer:

10.2

Step-by-step explanation:

if u write is down with the decimals tgat and count that is what u would get also 2 plus 8 is ten and two pluse two is 41

5 0

2 years ago

Answer both ASAP! please do correctly

Tresset [83]

Answer:

1. the discriminant is 4

the number of solutions 0

solutions 0

2.the discriminant is 0

i couldn't find any solutions

Step-by-step explanation:

4 0

1 year ago

Find an equation of the circle that has center (-4,3) and passes through (6,-4).

kumpel [21]

Answer:

$(x+4)^2+(y-3)^2=149$

Step-by-step explanation:

The equation of a circle is $(x-h)^2+(y-k)^2=r^2$ where $(h,k)$ is the center of the circle and $r$ is the radius of the circle.

Given that $(h,k)\rightarrow(-4,3)$ and it passes $(6,-4)$ , their distance between each other must the radius of the circle, so we can use the distance formula to find the radius:

$d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}\\\\d=\sqrt{(-4-3)^2+(6-(-4))^2}\\\\d=\sqrt{(-7)^2+10^2}\\\\d=\sqrt{49+100}\\\\d=\sqrt{149}$

Therefore, if the length of the radius is $r=\sqrt{149}$ units, then $r^2=149$ , making the final equation of the circle $(x+4)^2+(y-3)^2=149$

5 0

2 years ago