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3 years ago

Triangle JKL has vertices J (-7, 4), K (7.1),

Mathematics

1 answer:

harina [27]3 years ago

7 0

Answer:

J'(7,-4), K'(-7,-1), L'(-2,2)

Step-by-step explanation:

reflection over x-axis: (x,y) --> (x,-y)

reflection over y-axis: (x,y) --> (-x,-y)

Because the triangle is reflected x-axis and then y-axis,

all points would be (x,y) --> (-x,-y)

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Aloiza [94]

11 books;

157 books - 102 books = 55 books (donated)
55 books divided by those 5 months in between is 11 books

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4 years ago

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How many solutions does this equation have? -4(5-3x)=12x+20

UNO [17]

Answer: The number of solutions to the given equation is zero.

Step-by-step explanation: We are given to find the number of solutions to the following equation :

$-4(5-3x)=12x+20~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

To find the number of solutions, we must solve the given equation.

The solution of equation (i) is as follows :

$-4(5-3x)=12x+20\\\\\Rightarrow 5-3x=\dfrac{12x+20}{-4}\\\\\Rightarrow 5-3x=-3x-5\\\\\Rightarrow -3x+3x=-5-5\\\\\Rightarrow 0=-10,$ which can never be possible.

So, the given equation has no solution.

Thus, the number of solutions to the given equation is zero.

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4 years ago

Which of the following is not a factor of

babunello [35]

Answer:

c. x+4

Step-by-step explanation:

A graph shows zeros to be -2, 1, 3, 4. This means the factors will be ...

(x +2)(x -1)(x -3)(x -4)

The factor (x+4) is not among the factors of the given expression.

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3 years ago

Find the selling price. Where necessary, round to the nearest cent. regular price: $9.99 percent of markup: 60% a. $15.98 c. $10

ahrayia [7]

Its 100b hop this helps

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3 years ago

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The formula for the surface area of a cube is A equal 6 s to the power of 2 comma where s is the side length. Cube X has a side

cricket20 [7]

Answer:

Surface area of Cube Y is 3 times greater than the surface area of cube X

Step-by-step explanation:

Surface area of a cube,A = 6s²

Where,

s = side length

Cube X has a side length of 1,

Surface area of cube, X = 6s²

= 6 * 1²

= 6 * 1

= 6

cube Y has a side length of 2

Surface area of cube, Y = 6s²

= 6 * 2²

= 6 * 4

= 24

How much greater is the surface area of cube Y than cube X?

Surface area of Cube Y is 3 times greater than the surface area of cube X

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3 years ago