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What will the image formed by a convex spherical mirror always be?

Convex mirrors are called diverging mirrors because they cause incident light originating from the same point to divergently reflect off the mirror surface. Light rays that diverge off a convex mirror never intersect on the object side of the mirror. These properties mean that convex mirrors cannot be used to focus light or project an image on a screen.\nThe virtual images that convex mirrors form widen the field of view, enabling their usage as passenger-side vehicular mirrors. Objects in such mirrors appearing further away than they truly are can be attributed to the distorting effect that c..

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How do you round numbers to the nearest tenth?

The tenth's place in decimals is the first place to the right of the decimal point. The second place is the hundredth's place. The value of the number in the hundredth's place is the number which determines whether you round the value in the tenth's place up or down, which essentially means leaving the tenth's value as the number it is. Once you complete the rounding process, drop all the digits to the right of the tenth's place.\nFor example, in rounding the number 5.43 to the nearest tenth, find the first number to the right of the tenth's place. Because th..

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How do you solve the volume of a right triangular prism?

Measure the dimensions of the baseMeasure the edges of one of the parallel faces. This face is often referred to as a base. If the face is a right triangle, you only need to measure the perpendicular edges that intersect at a right angle.\nFind the area of the baseThe area of most polygon bases can be found by multiplying some coefficient of length times height. For triangles, the area is one half of the length times the height (A = l*h/2). The perpendicular sides you measured are the length and height of a right triangle. Multiply them together, and divide the product by 2 to find the area. F..

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How do you calculate degrees of freedom for chi square tests?

Set up a contingency tableCreate a contingency table with two categorical variables: one represented in the rows and the other represented in the columns. When a researcher wants to compare the counts of more than one categorical variable, he creates a contingency table in which one variable represents the columns and another represents the rows. Categorical variables are variables that are not numbers. Gender, which is categorized as male or female, is an example of a categorical variable. Determine the number of rows and columnsCount the total number of rows in the contingency table. For exa..

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What is the square root of 162?

Using simplification, the square root of 162 can be expressed as 9 times the square root of 2. This expression can be found by factoring 162 into 81 and 2 and rewriting the equation as the square root of 81 times the square root of 2. Solving for the square root of 81 results in 9 * sqrt(2), where sqrt indicates a radical sign. The square root of 2 can be solved on a calculator or by using an averaging technique.

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What is an equation in math?

An example of an equation is 9x + 5 = y. The letters x and y in the equation are called variables. These represent unknown values, which are discovered through solving the equation. The number 5 in this equation is known as a constant, due to it being a number on its own. The 9 in this equation is a coefficient, a number multiplied by a variable. The plus sign is the operator of the equation, showing which operation to perform in the equation.

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What is the same side interior angles theorem?

Supplementary angles, when their degree measurements are added together, total 180 degrees. For instance, two same-side interior angles can measure 120 and 60 degrees, or their values can be algebraic expressions, such as (2x + 43) and (2x - 3).\nLikewise, four pairs of two angles in this set are congruent, meaning they have the same measurements. All four angles that meet add up to 360 degrees. Opposite angles, or alternate angles, have the same value, except they open in opposite directions of the intersected lines. A transverse line, or transversal, is a line that intersects two or more oth..

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2 is to 55 as 6 is to?

To find this relationship, simply cross multiply using the fractions 2/55 x 6/n. Therefore, 2n is equal to the product of 6 x 55, 330. Since 330 divided by 2 is 165, 2 is to 55 as 6 is to 165. To confirm this finding by calculator, 2/55 must equal the same result as 6/165, which holds true. This same formula is used to solve a proportion whenever three of the four terms are known.

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How are quadratic equations used in everyday life?

An equation is quadratic if it is of "order 2;" that is, an equation is quadratic if the highest power in the equation is 2. Therefore, x^2 and any variations of it are quadratic equations. For example, if a ball is thrown straight from 3 meters above the ground at a velocity of 14 meters per second, this allows the construction of an equation. The equation is quadratic because half of the gravitational velocity, 5t^2, is subtracted from the other constants. By setting the equation equal to zero, two solutions can be acquired. The interesting part is that these solutions show when height is eq..

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How do you calculate the cost of electricity per hour?

In order to find kilowatt-hours it is necessary to find the cost of electricity in that area. While the average cost of electricity in the U.S. is 12 cents per kilowatt-hour, the cost of electricity varies greatly by region and usage. The wattage of a device is also needed and can usually be found on the device itself, but the information is not always accurate. Many devices do not use the full wattage listed at all times. It is because of this that a watt-hour meter is used to find the average wattage of a device. When plugged directly into the meter, the devices average wattage usage will di..

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