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3 years ago

11

There are 7 people on a cycling team. Their coach mush pick two of them to be Co - Captain. How many different pairs can the cou

ch choose?

1 answer:

garik1379 [7]3 years ago

4 0

21, because 7 choose 2 = 21

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Y = x² - 4x convert from standard to vertex form

Pepsi [2]

Answer:

$y = (x-2)^{2} -4$

Step-by-step explanation:

To complete the square: add 4 to both sides because the product of 4 as 2 as the factor which 2 * 2 so $2^{2}$

$y + ? = x^{2} - 4x + ?$

$y + 2^{2} = x^{2} - 4x + 2^{2}$

$y + 4 = x^{2} - 4x + 4$

Now we can factor the expression

$y + 4 = (x-2)^{2}$

Move the 4 to the other side to isolate y which changes the sign

$y = (x-2)^{2} - 4$

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2 years ago

Nth term of 4,1,-2,-5,-8

suter [353]

In the sequence, the numbers are going down by -3. So the nth term must start with -3n. To get from -3 to 4 you must add 7. This makes the nth term -3n+7.

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3 years ago

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A store charges $32 to print 80 greeting cards and $0.33 for each additional greeting card

Crazy boy [7]

32 + 0.33c = p

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4 years ago

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Find the perimeter of a square whose sides are 7.

allochka39001 [22]

Hey there,

Your question states: <span>Find the perimeter of a square whose sides are 7.

When finding the perimeter, we need to multiply each side because it is a square. So 7 times 4 would be 28

~Jurgen</span>

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3 years ago

Which value is equivalent to x-7/7-x<br> A) -7<br> B) -1<br> C) 1<br> D) 7

I am Lyosha [343]

(x-7)/(7-x) if you factor out -1 from the numerator you get:

-(7-x)/(7-x) which is equal to:

-1

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3 years ago

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