2 years ago

PLZ HELP ASAP 30 POINTS !!!! Which is a zero of the quadratic function f(x) = 9x2 – 54x – 19?

Mathematics

1 answer:

Firdavs [7]2 years ago

3 0

Answer: x =6 1/3

Step-by-step explanation:

Whichever value of x from the given option that make f(x) = 0 is the zero of f(x). x = 6 1/3 satisfies this, you can check by replacing 6 1/3 by x in the equation. 6 1/3 can be written as 19/3

f(19/3) = 9(19/3)² - 54(19/3) - 19

= 9(361/9) - 54(19/3) - 19

= 361 - 342 - 19

= 0.

The remaining values don't give 0.

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In the rhombus, angle 1 = 10x, angle 2 = x + y, and angle 3 = 15z. Find the value of each variable. 2 1

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<h3>Rhombus Diagonals</h3>

According to the question;

All sides of the Rhombus are equal.

Hence, the Diagonals of the Rhombus are perpendicular bisectors of each other.

Therefore,

Angles 1, 2 and 3 are all equal to 90°, so that we have;

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