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ICE Princess25 [194]
3 years ago
13

4. Kennedy buys a computer that was reduced in a sale by 10%. If the sale price of the

Mathematics
1 answer:
givi [52]3 years ago
6 0

Answer:

N$12 576. 11

Step-by-step explanation:

Loss%=10%

S.P= N$11 480.50

C.P =?

Loss%=100(C.P - S.P)/C.P

10=100(C.P-11 480.50)/C.P

10C.P=100C.P - 1 148 050

1 148 050=100C.P - 10C.P

1 148 050=90C.P

C.P=N$12 576.11

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antiseptic1488 [7]

After plotting all the three points, we get the parabolic equation in the form is 2(x - 1)²-34.

<h3>What is parabola?</h3>

Any point on a parabola, which has the shape of a U, is situated at an equal distance from the focus, a fixed point, and the directrix, a fixed line.

General equation of the quadratic equation,

Y = ax² + bx +c

Given points,

(-2, 0),

(-1, -10),

(4, 0).

Putting the points in the general equation,

Putting (-2, 0), we get

0 = 4a - 2b + c

Putting (-1, -10), we get

-10 = a - b +c

Putting (4, 0), we get

0 = 16a + 4b +c

Solving all equations we get,

a = 2 , b = -4 , c = -16

After putting the values,

Y = 2x²- 4x- 16

2(x² - 2x - 8)

2(x²- 2x + 1 - 1 - 16)

=2(x - 1)²-34

Hence we get the required equation in the parabolic form.

To know more about parabola, visit :

brainly.com/question/21685473

#SPJ1

5 0
10 months ago
At maximum speed, an airplane travels 1720 miles against the wind in 5 hr, the plane can travel the same distance in 4 hr
gregori [183]
The answer would be 430mph.
5 0
3 years ago
Is -4 greater than -4.25?
iVinArrow [24]

Answer:

Yes

Step-by-step explanation:

The smaller the negative number, the greater it is. i.e., -230 < -9.

6 0
3 years ago
Read 2 more answers
Which of the following equations can be used to find the length of BC in the triangle below??? Help :)
vivado [14]

Answer:

D

Step-by-step explanation:

Using Pythagoras' identity on the right triangle

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, hence

(BC)² = 10² + 30² → D

5 0
3 years ago
In a recent year, 21% of all college students were enrolled part-time. If 7.6 million college students were enrolled part-time t
Blizzard [7]

Answer:

36.19047619 million

or 36,190,476 students

Step-by-step explanation:

7.6 million / all students = 21% / 100%

7.6 * 100 / 21 = 36.19047619

36.19047619 million

or 36,190,476 students

8 0
2 years ago
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