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Andrej [43]
2 years ago
13

NEED TO PASS HELP WILL GIVE BRAINLY!!!

Mathematics
1 answer:
True [87]2 years ago
5 0

Answer:

\bigodot None of the other answers are correct.

Step-by-step explanation:

  • 2b^2-3b+85=-5 (Given)

  • \implies 2b^2-3b+85+5=0

  • \implies 2b^2-3b+90=0

  • Comparing it with the general form of quadratic equation ax^2+bx+c=0, we find:

  • a = 2, b = -3, c = 90

  • Next, we find the value of the discriminant b^2-4ac

  • b^2-4ac= (-3)^2-4(2)(90)=9-720=-711

  • \because b^2-4ac, which means the roots of the given quadratic equation are non-real or imaginary.

  • Thus, last option is the correct answer.
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For each point, identify the axis or quadrant where the point is located.
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In the point (x, y), if x=0, then the point is on the y axis.
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If both x and y are positive (greater than 0), the point is in quadrant 1
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Taking (-3, 2), since 3 has a - sign before it (and nothing else), it is negative. Since the x value comes first, this means that x is negative. Since it simply states "2" for the y value, it is positive. As x is negative and y is positive, we know that the point is in quadrant 2.

I challenge you to do this on your own - good luck, and feel free to ask with further questions!
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