3 years ago

I see the amount was $90.00 then reduced to $75.00 , what is the percent ?

Mathematics

1 answer:

VashaNatasha [74]3 years ago

5 0

Answer:

16 2/3 %

Step-by-step explanation:

Since the price went down, we are find the percent decrease.

Percent decrease = (original price - new price)/ original price

= (90 - 75)/90

=15/90

.1666666666666

Changing to percent form

16.6666666666666666666666%

16 2/3 %

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F(x) = x2+3x+2 x2+5x+4 Why is there no zero at x = –1?

dmitriy555 [2]

You could rewrite $F(x)$ as

$\dfrac{x^2+3x+2}{x^2+5x+4}=\dfrac{(x+1)(x+2)}{(x+1)(x+4)}$

and be tempted to cancel out the factors of $x+1$ . But this cancellation is only valid when $x\neq-1$ .

When $x=-1$ , you end up with the indeterminate form $\dfrac00$ , which is why $-1$ is not a zero.