Which operation should be performed last in this problem: 3^2 + 7 × 4? Why?
2 answers:
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Two figures are known as similar figures if there the corresponding angles are equal and the corresponding sider is in ratio. The length of the smaller chord AB is 4 cm.
<h3>What are Similar Figures?</h3>Two figures are known as similar figures if there the corresponding angles are equal and the corresponding sider is in ratio. It is denoted by the symbol "~".
The diagram for the given condition can be drawn as shown below. Therefore, the measure of the smaller chord AB can be found as shown below.
The two triangles, ΔOPQ and ΔOAB are similar. Therefore, for similar triangles, we can write,
Now, we can write further,
AB = 7.43 cm
Hence, the length of the smaller chord AB is 4 cm.
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Answer:
Step-by-step explanation:
The directrix of the parabola is the horizontal line with the eqaution The focus of the parabola is at point (-4,10), than the axis of symmetry of the parabola is the perpendicular line to the directrix passing through the focus. Its equation is
The distance between the directrix and the focus is so
and the vertex is at point
Parabola goes in positive y-direction, hence its equation is
where is the vertex, so the equation of this parabola is
