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aalyn [17]
3 years ago
8

3x^2-60x=-315 solve for roots using the quadratic formula.

Mathematics
1 answer:
Mademuasel [1]3 years ago
4 0
Move 315
So 3x^2-60x+315=0
Use the formula, hopefully you know it.
-(-60) +- root(-60)^2-4(3)(315)/2(3)
60+-root3600-3780/6
So 60+-6iroot5/6
Simplify again so
10+-iroot5

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Please help me put them in correct place
REY [17]

The inequalities that match the given expressions are

x ≤ 95

x > 100

5x ≤ 100

20 ≤ x ≤100

respectively

<h3>Writing linear inequalities </h3>

From the question, we are to match the statements with the corresponding inequalities

  • Nora's height(x) is at least 5 cm less than Stacy who is 100 cm tall

x ≤ 100 -5

x ≤ 95

  • Temperature(x) is greater than the boiling point of water (100 °C)

x > 100

  • John buys x chocolates worth $5 each but he has only $100 in his pocket

5x ≤ 100

  • Ronny decided not to exceed 100L of water usage and ends up using at least 1/5th of this limit every day

x ≤ 100

and

x ≥ 1/5 × 100

x ≥ 20 ≡ 20 ≤ x

∴ 20 ≤ x ≤100

Hence, the inequalities that match the given expressions are

x ≤ 95

x > 100

5x ≤ 100

20 ≤ x ≤100

respectively

Learn more on Writing inequalities here: brainly.com/question/1447311

#SPJ1

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