3 years ago

3/8 - N= 1/4 please answer

Mathematics

1 answer:

Elodia [21]3 years ago

5 0

The answer would be 1/8.

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Answer:

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3 years ago

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Find the number of real number solutions for the equation. x^2+5x+7=0

koban [17]

Given a quadratic equation $ax^2+bx+c=0$ , we define the discriminant as

$\Delta = b^2-4ac$

The number of real solutions of the equation depend on the sign of $\Delta$ :

If $\Delta>0$ the equation has two solutions
If $\Delta=0$ the equation has one double solution
If $\Delta$ the equation has no real solutions

In this case, we have

$\Delta = 25-28=-3$

And so this equation has no real solutions.

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3 years ago

Eli is driving at a speed of 60 miles per hour. Let h represent the number of hours that Eli drives at this speed. Enter an alge

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Work Shown:

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3 years ago

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3 years ago

When A=300, solve the equation x^2 - 40x + A = 0 by factorising

Svet_ta [14]

Answer :

$\:$

(x–30) (x-10)

Given equation :

• x² - 40x + A

when A = 300

1. Use the sum-product pattern

x²- 40x + 300

x²−10x−30x+300

2. Common factor from the two pairs

x² – 10x-30x+300

x(x−10)−30(x−10)

3. Rewrite in factored form

x(x−10)−30(x−10)

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3 years ago