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AlekseyPX
3 years ago
7

The function f (x) =3x^2-2x-4 opens which way?

Mathematics
2 answers:
lina2011 [118]3 years ago
7 0
Upwards. Positive quadratic functions open upward, while negative quadratic functions open downwards.

:)
NikAS [45]3 years ago
6 0
Y=3x^2-2x-4

dy/dx=6x-2

d2y/dx2=6

Since acceleration is always positive, the function opens upwards....
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If Ruby plans on making 4 batches of pancakes, how many combined cups of powdered milk and whole wheat flour does she need?
Trava [24]

Ruby needs a cup of powdered milk and six cups of whole wheat to prepare four batches of pancakes.

Given the <em>quantities</em> of powdered milk and whole wheat to prepare a batch of pancakes, we can determined the <em>total</em> amount of each ingredient by simple rule of three:

Powdered milk

x = 4\,batches\times  \frac{1}{4}\,\frac{cups}{batch}

x = 1\,cup

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y = 4\,batches \times \frac{3}{2}\,\frac{cup}{batch}

y = 6\,cups

Ruby needs a cup of powdered milk and six cups of whole wheat to prepare four batches of pancakes.

To learn more on simple rule of three (cross multiplication), we kindly invite to check this verified question: brainly.com/question/8647106

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3 years ago
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