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grigory [225]
3 years ago
5

When solving using the quadratic formula, what does the discriminant tell you about the nature of the roots?

Mathematics
1 answer:
Softa [21]3 years ago
5 0
The discriminate is the part under the square root of the formula and gives you the amount of solutions

If the discriminate is positive there are 2 solutions, if it is 0 there is a single solution and if it is negative then there is no solution (in the real numbers), because the root is not defined for negative numbers
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10. Weiming and Joyce intend to buy a present for Siti. Weiming agrees to pay at least twice as much as but at most $150 more th
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The  required amount Weiming has to pay is given by the limit of $150

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Response:

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<h3>Which method can be used to analyze the amount paid by Weiming and Joyce?</h3>

Amount Weiming agrees to pay ≥ 2 × Joyce agrees to pay

Amount Weiming agrees to pay ≤ 150 + Amount Joyce agrees to pay

Let <em>x</em> represent the amount Weiming agrees to pay, and let <em>y</em> represent

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x + y = 210

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When the amount Weiming is $150 more than Joyce, which is the

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x = y + 150

Which gives;

y + 150 + y = 210

2·y = 210 - 150 = 60

y = 60 ÷ 2 = 30

x = 30 + 150 = 180

Therefore;

  • The greatest amount Weiming has to pay is, x = <u> $180</u>

Learn more about inequalities here:

brainly.com/question/17882496

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