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3 years ago

Determine the value of b2 - 4ac when: a=0 b=4 C=100

Mathematics

1 answer:

stealth61 [152]3 years ago

5 0

Answer:

Step-by-step explanation:

b2 - 4ac

Replace letters with numbers

4(2) - 4(0)(100)

Multiply left to right

8 - 4(0)(100)

8 - 0(100)

8 - 0

Answer - 8

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Answer:

216x

Step-by-step explanation:

Write it out: $6x^{3}$
$6^{3} = 216$
Add in x: 216x

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a copy shot prints 5,493 pages they use the pages to make 68 same size booklets about how many pages are in each booklet

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Answer:

80 pages

Step-by-step explanation:

Given:

Number of pages printed = 5493

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Let each booklet use 'x' pages.

So, pages used by 68 booklets is given by unitary method and is equal to:

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Now, total number of pages are 5493.

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Step-by-step explanation:

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Write x2 - 8x + 13 = 0 in the form (x - a)2 = b, where a and b are integers. a.)(x - 4)2 = 3 b.) (x - 3)2 = 2 c.)(x - 2)2 = 1 d.

loris [4]

The answer is <span>a.)(x - 4)2 = 3.

(x - a)</span>² = b can be expressed as:
x² - 2ax + a² = b ⇒ x² - 2ax + a² - b = 0

Our equation is x² - 8x + 13 = 0.
The general formula is x² - 2ax + (a² - b) = 0

Thus:
8x = 2ax and a² - b = 13

Divide both sides of the first equation (8x = 2ax) by x:
8 = 2a ⇒ a = 8 ÷ 2 = 4

Replace a in the second equation (a² - b = 13):
4² - b = 13 ⇒ b = 4² - 13 = 16 - 13 = 3

Now when we have a and b, let's just replace them in the general equation:
(x - a)² = b
(x - 4)² = 3

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3 years ago