24a-18a+12a is equal to 18a
hence, divide it by 6a
so you get 3a :)
First count the number of digits after the first one 6 This = 6 and is the exponent of 10 so the required notation is
6.000370 * 10^6
First we find the mean (average)
(7 + 8 + 9 + 9 + 10 + 11)/6 = 54/6 = 9
now we subtract the mean from every data number....and square it
7 - 9 = -2...-2^2 = 4
8 - 9 = -1...-1^2 = 1
9 - 9 = 0....0^2 = 0
9 - 9 = 0...0^2 = 0
10 - 9 = 1....1^2 = 1
11 - 9 = 2....2^2 = 4
now we find the mean (average) for those numbers
(4 + 1 + 0 + 0 + 1 + 4) / 6 = 10/6 = 1.67...this is the variance
to find the standard deviation, take the sqrt of the variance
sqrt 1.67 = 1.29 <== ur answer
Answer: The expression 13÷5 is a fraction. Here the only option that makes sense as per this expression is:
B. Each of 5 cupcakes used 13 pound of sugar. What is the total amount of sugar used?
Therefore the option B is correct
Also please note:
A fraction is a number that represents a part of a whole. It consists of a numerator and a denominator. The numerator represents the number of equal parts of a whole, while the denominator is the total number of parts that make up said whole.
Answer:when x = -11
2×11-19=22-19
=3
Step-by-step explanation:
