3 years ago

Help me for 10 points!!

1 answer:

6 0

-2y + 2

Explanation

We have (x - y + 1) - (x + y - 1)

Let’s expand the Parentheses

= x - y + 1 - x - y + 1

Then let’s group the like terms

= (x - x) + (- y - y) + (1 + 1)

= 0 - 2y + 2

= 2y + 2

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Suppose in a game with a pile containing a large number of chips, you can remove any number from 1 to 6 chips at each turn. What

liq [111]

Answer: the winning strategy is to take 1 chip, leaving our opponent with the losing position of 5 chips.

Step-by-step explanation:

suppose we start with 6 chips.

* If we take 1 chip, we leave our opponent with 5 - which we showed

was a losing position for him.

* If we take 2 chip (leaving 4), our opponent will take 3 - we lose.

* If we take 3 chip (leaving 3), our opponent will take 2 - we lose.

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4 years ago

Find the coordinates of the other endpoint of the segment, given its midpoint M and one

Alex_Xolod [135]

Answer:

The coordinates of the other endpoint are (2b-g,2m-r)

Step-by-step explanation:

Let

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we have

M(b,m) and Q(g,r)

we know that

The formula to calculate the midpoint between two points is equal to

$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

In this problem the midpoint between Q and R is equal to the point M

substitute

$(b,m)=(\frac{g+x}{2},\frac{r+y}{2})$

$\frac{g+x}{2}=b$ ----> $x=2b-g$

$\frac{r+y}{2}=m$ ----> $y=2m-r$

therefore

The coordinates of the other endpoint are (2b-g,2m-r)

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3 years ago

4+6 as a verbal expression

oee [108]

Hi,

"Four plus six" is the verbal expression.

Hope this helps.
r3t40

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4 years ago

Read 2 more answers

PLEASE HELP ASAP please.

rosijanka [135]

Answer:

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Step-by-step explanation:

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3 years ago

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suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. if no other money is added or withdra

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