Answer: Last option.
Step-by-step explanation:
For this exercise you need to find the Discriminant.
The formula used to find the Discriminant, is the following:
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In this case, given the Quadratic equation:
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You can identify that:
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Knowing those values, you must substitute them into the formula and then you must evaluate in order to find the Discriminant.
You get that this is:
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By definition, if:
Then the Quadraitc equation has 2 nonreal solutions.
Answer:
x=4
Step-by-step explanation:
Answer: x= 207.8873386
Step-by-step explanation:
expecting both 2x-15 and 3x are angles in radiant, let's draw a rhombus ABCD
∠ABC = 2x-15
∠ BCD = 3x
∠ABC + < BCD= π ( 180° in radiant)
2x - 15 + 3x = π
5x - 15 = π
x - 3 = 1/5π
= 3.628318531 = 207.8873386
2x−15°+3x=180
5x-15°=180
5x=195°
x=39°