Mathematics, 29.01.2021 03:00 elizabethburkha

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Please help me with this ASAP please

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Answer from: Niktorres560Luckynik

Buffy's collection contains 400 books. The number of mystery books is 65 percent of the number of science-fiction books. The number of romance books is 46 percent of the number of mystery books. The number of horror books is 17 percent of the number of romance books. (Percentages have been rounded to the nearest percent). How many mystery books does Buffy have?

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Answer from: 10035391

Step-by-step explanation:

Answer from: Quest

answer: rotate 270° clockwise about (7, 1) and reflect across the line x = 7

step-by-step explanation:

because i took test

Identify the transformation that maps the figure with center (7, 1) onto itself. a) rotate 180° cloc

Answer from: Quest

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

$x^2-2x+y^2-6y=26$

we now create space between the x and y terms with parenthesis.

$(x^2-2x)+(y^2-6y)=26$

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

$\frac{-2}{2} =(-1)^{2} =1$

$\frac{-6}{2} =(-3)^{2} =9$

we add the squares to both sides.

$(x^2-2x+1)+(y^2-6y+9)=26+1+9$

simplify.

$(x^2-2x+1)+(y^2-6y+9)=36$

and write the quadratics in factored form.

$(x-1)^{2} +(y-3)^{2} =36$

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

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