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They must have compatible units of measure.
For example, you cannot directly add a quantity measured in meters to a quantity measured in centimeters. If their units of measure are compatible but not identical, one can be converted to the other.
On the other hand, there is no way to add a quantity in feet to a quantity in pounds, as those are incompatible units of measure.
Additionally, if the quantities are fractions, they must also have the same denominators, also called sharing a common denominator.
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How do you write an expression in quadratic form?
Write an expression consisting of up to three terms:One term in which the key variable is squared,one term with a multiple of the variable, anda constant.The first of these MUST be present. The three terms must be added or subtracted.
What is the least number that should be subtracted from 832 to make it exactly divisible by 49?
The answer is 48illustration:833 is a multiple of 49 which is more than 832the multiple which is immediately less than 833 is 784so the difference that must be subtracted is 832- 784 = 48
What must be added to 452664 to make it a perfect square?
Sqrt of 453664 is 672 and a bit.So next square is 673 squared, ie 452929, so 265 must be added.
When subtracting variables with exponents do you add or subtract the exponenets?
You cannot ad or subtract variables with different exponents: the exponents must be the same. The coefficients are added or subtracted and the exponent of the answer is the common exponent. (The rules are similar to those for the denominators of fractions.)Thus 2x^2 + 5x^3 cannot be combined into a single term.while 2x^2 + 5x^2 = (2+5)*x^2 = 7x^2
What number must be added to the polynomial to complete the perfect square x2-24x?
144
Must quantities have different units before they can be added or subtracted?
no
Why vector quantities cannot be added and subtracted like scaler quantities?
Vector quantities have both magnitude and direction, so when adding or subtracting them, both the magnitudes and directions must be considered. Scalars, on the other hand, only have magnitudes and can be added or subtracted without concern for direction. This is why vector addition and subtraction involve vector algebra to handle both the magnitudes and directions appropriately.
What is the smallest number of nucleotides that must be added or subtracted to alter the reading frame?
The smallest number of nucleotides that must be added or subtracted to alter the reading frame is 1. A single nucleotide insertion or deletion can cause a frameshift mutation, resulting in a different reading frame for translation.
What must be subtracted from -3 to get -9?
6
What is the smallest number of nucleotides that must be added or subtracted to change the triplet grouping of the genetic message?
1
What is the smallest number of nucleotides that must be added or subtracted to cause a frame- shift in the triplet grouping of the genetic message?
1
What is the requirement to add or to subtract fractions?
The denominator (bottom number) must be the same for all the fractions being added or subtracted together.
Why do you convert unlike fractions?
Unlike fractions have denominators that are unequal, and therefore cannot be added or subtracted. If two fractions need to be added or subtracted they must first be converted to like fractions.
Why vector quantities cannot be added or subtracted like scalar quantities?
SCALAR QUANTITIESPhysical quantities which can completely be specified by a number (magnitude)having an appropriate unit are known as "SCALAR QUANTITIES".Scalar quantities do not need direction for their description.Scalar quantities are comparable only when they have the same physical dimensions.Two or more than two scalar quantities measured in the same system of units are equal if they have the same magnitude and sign.Scalar quantities are denoted by letters in ordinary type.Scalar quantities are added, subtracted, multiplied or divided by the simple rules of algebra.EXAMPLESWork, energy, electric flux, volume, refractive index, time, speed, electric potential, potential difference, viscosity, density, power, mass, distance, temperature, electric charge etc.VECTORS QUANTITIESPhysical quantities having both magnitude and directionwith appropriate unit are known as "VECTOR QUANTITIES".We can't specify a vector quantity without mention of deirection.vector quantities are expressed by using bold letters with arrow sign such as:vector quantities can not be added, subtracted, multiplied or divided by the simple rules of algebra.vector quantities added, subtracted, multiplied or divided by the rules of trigonometry and geometry. EXAMPLESVelocity, electric field intensity, acceleration, force, momentum, torque, displacement, electric current, weight, angular momentum etc. REPRESENTATION OF VECTORSOn paper vector quantities are represented by a straight line with arrow head pointing the direction of vector or terminal point of vector. A vector quantity is first transformed into a suitable scale and then a line is drawn with the help of the scale choosen in the given direction. By : Shoaibbilal64@Yahoo.com
What is the roman numerals for 293?
CCXCIII The rule is that any symbol that is smaller value than the next must be subtracted from the next, not added to the one before. So two C s make 200, XC is 90, III is 3
What must be done to a mixed number before it can be added subtracted multiplied or divided?
For addition and subtraction, nothing. For multiplication, nothing provided you are able to use the distributive property efficiently. For division the mixed fraction should be converted to a top-heavy fraction. Although this can help with the other operations, it is not a "must".
What must be subtracted from 2347 to leave1536?
To find the number that must be subtracted from 2347 to leave 1536, you would simply subtract 1536 from 2347. This calculation results in 811. Therefore, 811 must be subtracted from 2347 to leave 1536.
