Answer:
The given statement is true.
Step-by-step explanation:
A basic variable in a linear system is a variable that corresponds to a pivot column in the coefficient matrix.
The statement is true.
This statement is the definition of a basic variable.
We can also say that a basic variables are 'n' variables that can take any value other than zero.
Answer:
Normal distribution
Step-by-step explanation:
The answer is "normal distribution". This is because in a normal distribution, the mean, median and mode are equal. What this means is that the distribution will be symmetrical with a bell curve unlike in positive or negative skew where it is skewed to either the left or right.
Answer:
Slope = 7.2 g/mL
Step-by-step explanation:
Density = mass/volume
Density is also the slope of the relationship between mass and volume.
When a graph between mass and volume is plotted, its slope gives the density of the object.
If the density is 7.2 g/mL, it would mean that the slope is 7.2 g/mL. Hence, this is the required solution.
Answer:
12
Step-by-step explanation:
21x + 4x = 300 Put brackets around the first two terms.
(21x + 4x) = 300 Pull the x outside the brackets. Use the distributive property. Combine the left
25x = 300 Divide by 25
25x/25=300/25 Do the division
x = 12
Answer:
649264637
Step-by-step explanation:
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