Hello,
a³-b³=(a-b)(a²+ab+b²)
x^6-27=(x²)³-3³=(x²-3)(x⁴+3x²+9)
Answer:
93/100
Step-by-step explanation:
23/100 + 7/10
=> 23/100 + 70/100
=> 93/100
Answer:
a) numerical discrete, b) categorical, c) numerical continuous, d) numerical continuous, e) categorical
Step-by-step explanation:
Categorical variables are those that represent attributes. For example, the colors of a model of car. It could be black, white, or red. It represents an attribute that can’ t be measured, only can be classified. Categorical variables can be classified into two types: nominal and ordinal. The categorical nominal variables don’ t follow a natural order, like the “b” statement. Babies could be boys or girls. When they have a hierarchy they are ordinal, for example, the “e” statement. They have an order. The firstborn is before than the middle child.
When the variable can be measured, it is a numerical variable. If the variable can be measured on a continuous scale, like “c” and “d” statement, then it is a continuous numerical variable. You can find any value on the scale. For example, the amount of fluid could be 250 ml, 250.1 ml, 249.5 ml.
If the variable can also take some finite variables, then it is a numerical discrete variable. These variables represent counts, as in the “a” statement, the number of students in a class.
Answer:
w>2kg
Step-by-step explanation:
the weight is greater than 2kg.
Answer:
y=8
Step-by-step explanation:
