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Answer:
answer is A
Step-by-step explanation:
The answer is <span>b. y=3x^2-5x+9
</span><span>
The general formula for quadratic function is:
y = ax</span>² + bx + c
Among all choices only b. is correct:
y = ax² + bx + c
y = 3x² - 5x + 9
Answer:To find out the Area of a scalene triangle whose three sides are given, first find out the half perimeter
s = (a+b+c)/2
where a, b, and c are the length of the three sides of a triangle
s = (35 + 45 + 50) / 2
= 130 / 2
= 65 cm
Area of scalene triangle is given by
A = sqrt (s (s - a) (s - b) (s - c))
= sqrt (65 * (65 - 35) ( 65 - 45) (65 - 50))
= sqrt (65 * 30 * 20 * 15)
= sqrt (585000)
= 764.853 sq cm
Step-by-step explanation:
