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2 years ago

7

in the football stadium, there are 56,244 seats.There are 48,889 tickets sold for saturday's game.How many seats will be on satu

rday?

2 answers:

Marrrta [24]2 years ago

3 0

There will be 7355 seats empty.

Aloiza [94]2 years ago

3 0

There will be 7355 seats
Empty

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a school held a tennis tournament. after each round one fourth of the players were eliminated. if there were 64 players at the s

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Answer:

If there are 32 teams in the tournament and 1 winner, there were 31 games. So, 63 - 31 = 32 games.

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2 years ago

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For the linear function f(x) = 7x - 4, find the range of f(x) at x = -2,0, and 2.

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Answer:

(-2, -18) and (2, 10)

Step-by-step explanation:

the answer is -18 and 10

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Identify the center and radius from the equation of the circle given below. x^2+y^2+121-20y=-10x

Tcecarenko [31]

Answer:

Center: (-5,10)

Radius: 2

Step-by-step explanation:

The equation of the circle in center-radius form is:

$(x-h)^2+(y-k)^2=r^2$

Where the point (h,k) is the center of the circle and "r" is the radius.

Subtract 121 from both sides of the equation:

$x^2+y^2+121-20y-121=-10x-121\\x^2+y^2-20y=-10x-121$

Add 10x to both sides:

$x^2+y^2-20y+10x=-10x-121+10x\\x^2+y^2-20y+10x=-121$

Make two groups for variable "x" and variable "y":

$(x^2+10x)+(y^2-20y)=-121$

Complete the square:

Add $(\frac{10}{2})^2=5^2$ inside the parentheses of "x".

Add $(\frac{20}{2})^2=10^2$ inside the parentheses of "y".

Add $5^2$ and $10^2$ to the right side of the equation.

Then:

$(x^2+10x+5^2)+(y^2-20y+10^2)=-121+5^2+10^2\\(x^2+10x+5^2)+(y^2-20y+10^2)=4$

Rewriting, you get that the equation of the circle in center-radius form is:

$(x+5)^2+(y-10)^2=2^2$

You can observe that the radius of the circle is:

$r=2$

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$(h,k)=(-5,10)$

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2 years ago

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What are the steps to solving an equation?

inna [77]

Answer:

The order of operations

Step-by-step explanation:

you should do what is possible within parentheses first, then exponents, then multiplication and division (from left to right), and then addition and subtraction (from left to right). (Assuming your talking about algebra)

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2 years ago

Fernanda and Jose were working on an assignment in their geometry class in which they were to write the equation of the graph be

Alborosie

Answer:

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Center of the Circle is (h,I) which is (4,-3)

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