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Sonja [21]
3 years ago
8

What are the solution(s) to the quadratic equation x2 - 25 = 0?

Mathematics
1 answer:
FromTheMoon [43]3 years ago
7 0

Answer:

A

Step-by-step explanation:

Given

x² - 25 = 0 ( add 25 to both sides )

x² = 25 ( take the square root of both sides )

x = ± \sqrt{25} = ± 5

Solutions are x = 5 and x = - 5

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Answer: It is B and C.

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Find the sum of 2x2 3x - 4, 8 - 3x, and -5x2 2. -3x2 - 2 -7x2 - 2 -3x2 6 -7x2 - 6x - 2
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3 years ago
The price of mangoes was $12 per kilo in November but has increased to $18 per kilo in January
zepelin [54]

The percentage of price of mangoes was increased by 15% from November to January.

<u>Step-by-step explanation:</u>

  • The price of mangoes in November = $12 per kilo
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Therefore, the change in percentage is percentage increase.

Percentage increase = (difference between two prices / lower price) × 100

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