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3 years ago

Use the discriminant to determine the number of solutions for the quadratic equation.

Mathematics

1 answer:

Leno4ka [110]3 years ago

7 0

Answer:

2 real solutions

Step-by-step explanation:

y = -x^2 + 3x + 5

First find the the discriminant:

using b² - 4(a)(b)

(3)²- 4(-1)(5)

=9+20

=29

since the discriminant is more than 0, there are 2 real solutions

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Answer:

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Step-by-step explanation:

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3 years ago

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sertanlavr [38]

Answer:

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3 years ago

Jervane is planning on buying a coffee and several donuts for a road trip. She wants to spend no more than $20 in total. Coffee

max2010maxim [7]

Answer:

Step-by-step explanation:

Given:

Total money Jervane can spend = $20.

Cost of a coffee = $3.

Cost of a donut = $2.

To find: Maximum number of donuts Jervane can buy.

Solution:

Let the number of donuts she can buy be $x$ .

She wants to spend no more than $20 in total.

So,

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