The equation that model a quadratic function is: y=0.9673x²-0.8475x+10.4334
Step-by-step explanation:
A quadratic function has the form of ;
f(x) = ax²+bx+c where a, b and c are real numbers and a≠0
For this case, equation y=0.9673x²-0.8475x+10.4334 models a quadratic function where a>0 thus the parabola opens upwards
See attached figure below to visualize the graph
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Quadratic functions graphs: brainly.com/question/9048896
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1) c= 3.5cm × 22/7
c= 77cm/7 = 11cm
2) c= 2×3.14×5cm
= 6.28× 5cm
=31.4cm
3) L=180/360 × 22/7 × 3cm
= 1/2 × 22/7 ×3cm
=4.71 cm
4) c=12cm ×3.14
=37.68cm
5) c = 4.5cm × 3.14
=14.13cm
6) c = 6.7cm × 3.14
= 21.038cm
Answer:
<u>395.64 m³</u>
Step-by-step explanation:
<u>Volume (figure)</u>
- Volume (hemisphere) + Volume (cylinder)
- 2/3πr³ + πr²h
- πr² (2/3r + h)
- 3.14 x 9 (2 + 12)
- 3.14 x 9 x 14
- 3.14 x 126
- <u>395.64 m³</u>
I think the answer is : x = -5.25