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3 years ago

Find the possible values of the constant k if the roots of the quadratic equation

Mathematics

1 answer:

Anastasy [175]3 years ago

5 0

Answer:

${b}^{2} - 4ac = 0 \\ { ( - k - 2)}^{2} - 4(1)(4) = 0\\ {k}^{2} + 4k + 4 - 4 = 0 \\ {k}^{2} + 4k = 0 \\ k(k + 4) = 0 \\ \therefore \: k = 0 \: or \: k = - 4$

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90 it is a right tranigle

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3 years ago

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Hunter-Best [27]

Answer:

No real roots.

Step-by-step explanation:

Unless you guys are dealing with imaginary numbers, you cannot take the square root of a negative.

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3 years ago

The graph below illustrates the linear function of how the total amount that a landscaper charges for a job changes depending on

liberstina [14]

First, given graph is very inaccurate. I suppose that you made net with pen.

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4 years ago

What is the answer to, - (-x - 3)?

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Step-by-step explanation:

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4 years ago

Because Bernard has some health issues, he must pay 15% more for life insurance. About how much more annually will a $115,000 10

olga2289 [7]

From the given table, the annual premium rate as a percentage of value insured a person at age 35 has to pay is 0.14%.

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Reasons:

The data in the table are presented as follows;

$\begin{tabular}{|c|c|c|}Age&Annual Insurance Premiums (per \$1,000 of face value)&\\&10-Year Term &\\&Male&Female\\35&1.40&1.36\\40&1.64&1.59\\45&2.07&2.01\end{array}\right]$

From the above table, we have that the amount a 35 year old without health issues will pay per $1,000 is $1.40

Therefore, the amount to be paid for $115,000 is 115 × $1.4 = $161

The amount Bernard pays = 15% more = 1.15 × $161 = $185.15

Therefore;

The amount more Bernard has to pay = $185.15 - $161 = $24.15 ≈ <u>$24</u>

Learn more about insurance premiums here:

brainly.com/question/3053945

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2 years ago

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