3 years ago

A voucher code is made

Mathematics

1 answer:

Tju [1.3M]3 years ago

5 0

Answer:

E. 2700.

Step-by-step explanation:

There are 3 possible values for the first digit ( V, X or P)

The second and third have 10P2 = 10!/(10-8)! = 90 possible values.

The third digit - there are 10 possibilities

So the answer is 3 * 90 * 10

= 2700.

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mixas84 [53]

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A rectangular athletic field is twice as long as it is wide. if the perimeter of the athletic field is 192 yards, what are its

qaws [65]

P = 2(L + W)
P = 192
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192 = 2(2W + W)
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Step-by-step explanation:

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3 years ago

Write the equation in standard form. Identity the center and radius. x² + y2 + 8x-4y-7=0

Masteriza [31]

Answer:

See below

Step-by-step explanation:

Given equation:

x² + y² + 8x - 4y - 7 = 0

Convert this to standard form by completing the square:

(x - h)² + (y - k)² = r², where (h, k) - center, r - radius
x² + 2*4x + 4² + y² - 2*2y + 2² - 16 - 4 - 7 = 0
(x + 4)² + (y - 2)² - 27 = 0
(x + 4)² + (y - 2)² = 27
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The center is (- 4, 2) and the radius is √27

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