Learn how to write the equation of a parabola given the vertex and the focus. A parabola is the shape of the graph of a quadratic equation. A parabola can open up or down (if x is squared) or open left or right (if y is squared). Recall...

👉 Learn how to determine the first five terms of an arithmetic sequence. A sequence is a list of numbers/values exhibiting a defined pattern. A number/value in a sequence is called a term of the sequence. An arithmetic sequence is a...

Learn how to convert points between rectangular and polar. Rectangular points measure the horizontal and vertical distance away from the origin whereas polar coordinates measure the direct distance and angle in standard position from the...

Plot a polar point with a negative radius

Networked UAVs: Arming drones with Wi-Fi to support emergency response



With support from the National Science Foundation, electrical engineer Yan Wan and a team at the University of Texas at Arlington are developing a new...

In this video, the teacher explains how to use a scale factor to find the area of a scale drawing. They demonstrate how multiplying the length and width of a figure by a scale factor does not generate the scaled area. Instead, they...

Practical - Light Intensity and Photosynthesis Rate

In this video, the instructor teaches viewers how to create Indian leg Mehndi designs. The tutorial covers various techniques such as making hump or U shapes, lines, scallops, and swirls to create intricate and beautiful patterns. The...

In this video we will learn how to make Advanced Front Hand Engagement Design

In this lecture presentation on number lines, the presenter explains the usefulness of number lines in counting up or down numbers, representing addition and subtraction, and measuring in real-life applications such as flying a plane or...

Gravity is a heart-warming story of attraction. These farm animals would fall for each other even if the laws of Physics stop working! This lesson will formally revisit the gravitational force (from year 11), focusing on Newton’s Law of...

In this video, the narrator explores the ongoing separatist movement in Indonesia's Easternmost province of West Papua. Through interviews with activists and a meditation class in Jakarta, the video highlights the complex identity of...

In this video, the teacher explains how to find the shortest distance between two points on a coordinate plane using the Pythagorean theorem. They demonstrate the process by creating right triangles and plugging the values into the...

It provides solved problems based on co-linearity of points, proving the coordinates to be the vertices of a geometrical figure and on finding locus.

Learn how to write the equation of a parabola given the focus and the directrix. A parabola is the shape of the graph of a quadratic equation. A parabola can open up or down (if x is squared) or open left or right (if y is squared)....

Learn all about parabolas in conic sections. We will discover the basic definitions such as the vertex, focus, directrix, and axis of symmetry. We will also take a look a basic processes such as graphing, writing the equation and...

Learn how to graph horizontal ellipse not centered at the origin. A horizontal ellipse is an ellipse which major axis is horizontal. To graph a horizontal ellipse, we first identify some of the properties of the ellipse including the...

Learn how to write the equation of an ellipse from its properties. The equation of an ellipse comprises of three major properties of the ellipse: the major radius (a), the minor radius (b) and the center (h, k). The ellipse is vertical...

A ball flying through the air, a deer walking in the woods, and a flowing river - these are all examples of moving things. This action-packed video explores the characteristics of things in motion. Special attention is given to the...

Astronomers have seen light from BEHIND a black hole for the first time. I explained the discovery and results to my editor, Levi. Congrats to D. Wilkins and the astronomy team!

A large asteroid classified as “potentially hazardous” by NASA will zoom past Earth on March 21, according to NASA's Center for Near-Earth Object Studies <br/>

Willamette Valley's specialty seed crops face threats from cross-pollination due to its unique geological and weather conditions that are ideal for seed production. A detailed mapping system and distance standards for crop isolation are...

This is the second part of a two-part video that shows how to assess and manage risks.
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This clip is from the chapter "Certified Information Systems Security Professional CISSP Domain 1 - Security and Risk Management" of the...

Today, we are going to walk through an example problem. Remember, for each truss we follow the same steps:

1. Calculate the missing angles (if neces
sary)
2. Calculate static determinanc
e (2J=M+R)
3. Calculate
reaction...