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ziro4ka [17]
3 years ago
7

What is the solution to the system of equations below?

Mathematics
1 answer:
Lemur [1.5K]3 years ago
8 0
I think the answer is a
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????(−2, 10) is the midpoint of . If ???????? has coordinates (4, −5), what are the coordinates of ?????
Sonbull [250]

Answer:

The coordinates of B are (-8,25).

Step-by-step explanation:

Consider the completer question is " M(−2, 10) is the midpoint of AB. If A has coordinates (4, −5), what are the coordinates of B".

Let coordinates of B are (a,b).

Formula for midpoint:

Midpoint=(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})

Midpoint of A and B is

Midpoint=(\dfrac{4+a}{2},\dfrac{-5+b}{2})

It is given that M(−2, 10) is the midpoint of AB.

(-2,10)=(\dfrac{4+a}{2},\dfrac{-5+b}{2})

On comparing both sides we get

-2=\dfrac{4+a}{2}

Multiply both sides by 2.

-4=4+a

Subtract 4 from both sides.

-8=a

The value of a is 8.

Similarly,

10=\dfrac{-5+b}{2}

Multiply both sides by 2.

20=-5+b

Add 5 on both sides.

25=b

Therefore, the coordinates of B are (-8,25).

8 0
3 years ago
What is -0.17r+0.91+r
Anarel [89]

Answer:

0.83r + 0.91

Step-by-step explanation:

-0.17r + 0.91 + r

Combine like terms (so, that would be r)

0.83r + 0.91

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Help please!!! LOOK AT IMAGE ATTACHED tysm for those who helped!! :)
maks197457 [2]

Answer:

I may be wrong but im about 80% sure its E i am deeply sorry if i am wrong and please do tell me if i am.

Step-by-step explanation:

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Two. (bands) and (comics)
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There are 3 green balls, 5 red balls, and 2 blue balls in a box. One ball is randomly drawn, replaced and then another ball is d
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The answer is d. 3/50.

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