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Basile [38]
3 years ago
6

Please helpthank youuuu

Mathematics
1 answer:
Brrunno [24]3 years ago
3 0
The first one.. this is the definition of symmetry
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PLEASE! I need the answer!
pshichka [43]

Answer:

-x^4y + x

Step-by-step explanation:

-2x^7y^2 + 2x^4y + 2x^3y

You can take out 2x^3y because there is enough of that in each part of the equation. Then you just divide the whole numbers and subtract the exponents.

-x^4y + x

5 0
3 years ago
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An ellipse has a vertex at (14, –1). The focus of the ellipse nearest that vertex is located at (8, –1). If the center of the el
zavuch27 [327]
Refer to the diagram shown below.

The right vertex is at (14, -1), and the center is at (-1, -1).
Therefore the semi-major axis is
a = 14 - (-1) = 15

The right focus is at (8, -1).
Therefore
c = 8 - (-1) = 9.

The distance of the directrix from the center is
d = c²/a = 9²/15 = 81/15 = 27/5.

Therefore the equation for the left directrix is
x = -1 - 27/5 = -32/5

Answer: x = -27/5

6 0
3 years ago
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Completely factor the polynomial. 16x 2 - 25
Sunny_sXe [5.5K]

Answer:

(4x-5)(4x+5)

Step-by-step explanation:

16x^2 - 25

Rewriting

(4x)^2 - 5^2

We recognize that this is the difference of squares

a^2 - b^2 = (a-b) (a+b)

(4x)^2 - 5^2 = (4x-5)(4x+5)

5 0
3 years ago
Olivia is going to an amusement park. The price of admission into the park is $40, and once she is inside the park, she will hav
svetoff [14.1K]

Answer:

Cost for 13 rides: $92

Cost for r rides: I am guessing it would be 40+4r

Step-by-step explanation:

If you automatically pay 40 dollars to get in, then that is the constant, and paying 4 dollars per ride is a coefficient, so that would be multiplied by how many rides you go on, the variable. Once you plug those into the equation above, you would get 92 dollars for the thirteen rides.

5 0
3 years ago
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Please need help on this
Trava [24]

Answer:

The perimeter of a shape is the sum of the measurements of all sides. Since a rectangle have equal lengths and widths, you can just add the numbers twice.

So, 15 + 15 + 8 + 8. So the perimeter is 46 cm.

7 0
3 years ago
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