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aev [14]
3 years ago
5

What to do if quadratic equation has a negative spuare root?

Mathematics
1 answer:
alex41 [277]3 years ago
3 0

If the negative square root is found to be one of your solutions, then that is indicative of a pair of imaginary roots (the imaginary i). According to the conjugate rule, if you have one solution that is imaginary, you will have another but with the opposite sign. For example, if a solution to a quadratic is found to be 2 - i, then its conjugate, 2 + i is also a solution. They will ALWAYS go in pairs. Same thing with radical solutions. If one solution is found to be 3+\sqrt{5}

then 3-\sqrt{5} will also be a solution.

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Tommy Thomas’s tankard holds 480ml when it is one quarter empty. How much does it hold when it is one quarter full?
agasfer [191]

Answer:

Tommy Thomas's tankard holds 160ml when it is one-quarter full.

Step-by-step explanation:

When Tommy's tankard holds 480ml when it's one-quarter empty. There are three other quarters in the tankard. So, you would divide 480 by 3 to see how much is in each of the other 3 quarters. The answer comes down to 160ml per quarter, which equals one-quarter full.

6 0
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OLEGan [10]

Answer:

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Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

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Given a₂ = 5 and a₁₀ = 19 , then

a₁ + d = 5 → (1)

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Subtract (1) from (2) term by term to eliminate a₁

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Substitute d = 1.75 into (1)

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Answer:

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The square root of 81 is 9
Your answer is <em>9
</em>
Work:
9 x 9 = 81
7 0
2 years ago
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