# Which number is between point S and point T on the number line?

k*S + (1-k)*T where k is any number between 0 and 1.

(S+T)/2equivalent to:

S/2 + T/2

### How would you graph an inequalities x-s less than or equal to y?

Mark a point on the x-axis as 's', then draw a solid line through this point, with a slope of 1. Then shade in the area above this line. The region above the line is shaded because if x-s < y then y > (x-s). The line is drawn as a solid line to represent that it can be equal, as well. At the point x=s, y = 0, which is where you marked s…

### How it can be proved that angle between two straight lines is equal to the angle between their normals?

If two lines have angles theta1 and theta2 relative to some third arbitrary line, then the angle between those two lines is theta1 minus theta2. The normal of a line at a point is a line that is 90 degrees from the line going through that point, so the angle between a line and its normal is 90 degrees. As a result, the angle between the two normals of those lines is (theta1 plus 90)…

### What best explains how a plot of concentration vs time for a reactant of a chemical reaction can be used to determine the instantaneous rate of a reaction at time equals 300 s?

1) Find time = 300 s on the curve. 2) Draw a tangent line crossing the point at time = 300 s on the curve. 3) Identify two points on the tangent line and use them to find the slope of the line. 4) The slope of the line is the instantaneous reaction rate in M/s. 1) Find time = 150 s on the curve. 2) Draw a line tangent to the point time =…

### How do you find a slope of a line given an equation?

You have to massage the equation around until it's in a standard form, with 'Y' all alone on one side of the equation, and everything else on the other side. It'll look like this: Y = (S)x + (B). 'S' and 'B' are just numbers. If you can get the equation of the line into this form, then the number 'S' is the slope of the line, and the number 'B' is the number on…

### Is Vietnam about 1000miles?

The straight line distance between the Northernmost point on the Vietnam-China border and the Southernmost point on the Camau pennisula is about 1,000 miles. However, the road distance from North to South is a lot longer because Vietnam is narrow at the center and curved like the letter S and not straight.

### What is 1 ninth in decimal?

One ninth (1/9) is represented in decimal notation by the number 0.111... which can also be written as 0.1(rec) or 0.1 with a small dot or horizontal line above the '1'. This can also be written as '0.' followed by any number of '1's. There is no way to write down this number in its entirety, as there are infinitely many '1's following the decimal place. This number is said as "zero point one, recurring".

### How many diagonals in a 2-dimensional equilateral figure?

The number of diagonals in an equilateral figure can be calculated from the number of sides. If the number of sides is "S", then the number of diagonals would be S(S-3)/2 This becomes clear if you consider that there will be the same number of vertices as there are sides. From each vertex you can draw a diagonal to all vertices except the one you started from and the two adjacent ones (lines between the…

### In two point perspective do both points have to be on the same horizon line?

The answer is a little tricky. Let's say you want to draw a picture of a car crashing through a huge pile of boxes. Each box would have it's own vanishing point(s) and likely none of them would touch the horizon line. That would have more than one vanishing point, but wouldn't be "two-point" perspective. "Two-point perspective (proper) does mean that the points share the same horizon line.

### What is the significant figure 3.0800?

To figure out how many significant figures there are in a number you must first know the rules. All numbers 1-9 are counted towards the number of significant figures. The only number you need to worry about is 0. -If there are 0's between digits (like 105), they are counted towards sig figs. -If, to the right of a decimal point, the number ends in a 0, or multiple 0's (4.660), they all count towards…

### How can you get the speed of runners?

Get a stopwatch. Get a runner (or get runners). Determine and measure the distance between point A and point B. Start the runner(s) at point A. Yell "GO!" and start your stopwatch; the runner(s) should start running from point A toward point B when you yell "GO!" When the runner(s) reach(es) point B, click your stopwatch and see how much time elapsed. This would be the speed of the runner(s) from point A to point…