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frutty [35]
2 years ago
11

Remer 1) 5k? + 10k + 6 = 0

Mathematics
1 answer:
IceJOKER [234]2 years ago
6 0

Ignoring the "?" in your question:

5k+10k+6=0 \iff 15k+6=0 \iff k=-\dfrac{6}{15}

If the "?" is a squared symbol that wasn't caught:

5k^2+10k+6=0

Use the quadratic formula

x_{1,2}=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

to get the solutions:

x_{1,2}=\dfrac{-10\pm\sqrt{100-120}}{10}

as you can see, the discriminant is negative, so the equation has no solution.

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Answer:

B. {–3, 5.9, 8.3}

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Answer:

range is -3, 5.9 , 8.3

Step-by-step explanation:

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for domain , take all the x  values (first number) from the ordered pairs

for range, take all the y value (second number) from the ordered pairs

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3 0
2 years ago
Sybil has 1/2 of pizza left over. She wants to share the pizza with 3 of her friends. What fraction of the original pizza does s
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