The sum of two rational numbers will always be rational. A rational number is a number that can be expressed in the form a/b with b ≠ 0. So, if we can prove that the sum of two rational numbers has a denominator, we have proven this statement. Since any rational number can be written as a/b, we can write sum of two rational numbers as a/b + c/d. We can make this ad+bc/bd. Since we proved that the sum of two rational numbers has a denominator, we also prove that their sum is rational.
Answer:
The following is NOT TRUE about the normal distribution, that is, d.) The curve is right-skewed(that is, skewed to the right).
Step-by-step explanation:
In a normal distribution the properties of which are given as follows:
i) all the central tendency measures, that is, the mean, the median and the mode are equal.
ii) The area under the bell curve is equal to one.
iii.) The bell curve is symmetric about the center, or mean.
iv.) The bell curve does not touch the x - axis.
Therefore only the following is NOT TRUE about the normal distribution, that is, d.) The curve is right-skewed (that is, skewed to the right).
4/15 !! hope it helps loll
Answer:
Step-by-step explanation:
The given figure is an hexagonal pyramid. It has a hexagonal base and six triangular lateral faces. The formula for determining the surface area of the pyramid is expressed as
Surface area = 3ab + 3bs
Where
a represents the apotherm which is the distance from each side of the hexagon to the center.
b represents the base length
s represents the slant height of the hexagonal base.
From the information given,
a = 5.2 cm
b = 6 cm
s = 12.2 cm
Surface area = (3 × 5.2 × 6) + (3 × 6 × 12.2) = 93.6 + 219.6 = 313.2 cm²
Answer:
Two opposite angles of a parallelogram are always <u>equal</u><u>.</u>
