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2 years ago

Someone help with this midpoint question please

Mathematics

1 answer:

Natali5045456 [20]2 years ago

3 0

Answer: D) (2,0)

Step-by-step explanation:

These are your values.

$(-2,4);(6,-4)$

Remember this means;

$(x_1,y_1);(x_2,y_2)$

The formula for finding the midpoint of a segment is simple. Add both x's and y's and divide them by 2 separately. Or, if you like to follow formulas, here you go.

Let M be midpoint.

$M=\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}$

$M=\frac{-2+6}{2},\frac{4+(-4)}{2}$

$M=\frac{4}{2} ,\frac{4-4}{2}$

$M=\frac{4}{2} ,\frac{0}{2}$

$M=2,0$

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Which of the following are examples of a geometric sequence? Select any and all that apply: may be more than one correct answer.

nevsk [136]

Answer:

( 1 , -2 , 4 , -8 , 16 , ... )

( 9 , 3 , 1 , 1/3 , 1/9 , ... )

Step-by-step explanation:

A geometric sequence has a common ratio in consecutive terms,

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$1, \frac{1}{2}, \frac{1}{6},\frac{1}{24},\frac{1}{120}.....$

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i.e. 1 , -2 , 3 , -4 , 5 , ... is not a Geometric sequence,

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1 , -2 , 4 , -8 , 16 , ...

$\frac{-2}{1}=\frac{4}{-2}= \frac{-8}{4}= \frac{16}{-8}...$

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In sequence,

0 , 1 , 0 , -1 , 0 , .....

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i.e. 0 , 1 , 0 , -1 , 0 , .....is not a Geometric sequence,

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$\frac{3}{9}=\frac{1}{3}= \frac{1/3}{1}= \frac{1/9}{1/3}...$

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