Answer:
4
Step-by-step explanation:
Answer:
A constant is a number that stays the same. A variable is number that doesn't remain the same.
The information shown on the horizontal axis of a bar chart is the qualitative class labels.
<h3>What is a bar chart?</h3>
A bar chart is a graph that is used to represent data graphically using rectangular bars. A bar charts has two axis:
- The vertical axis or the y axis which shows the frequency of the observations.
- The horizontal axis or the x axis shows the qualitative class labels.
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; where a = 1, b = -4 and c = 8
10u + t is the expressions shows the value of the reversal of digits in a two digit number, t = the tens digit and u = the ones digit. This can be obtained by multiplying 10 with the tens digit and adding unit digit.
<h3>Which is the required expressions?</h3>
Given that, in a two digit number,
t = the tens digit
u = the ones digit
The expression for the digit will be ,
10×t + u = 10t + u
The value of its reversal,
u = the tens digit
t = the ones digit
10×u + t = 10u + t is the required expression
For example,
37 = 10×3 + 7 = 30 + 7 and its reverse 73 = 10×7 + 3 = 70 + 3
Hence 10u + t is the expressions shows the value of the reversal of digits in a two digit number, t = the tens digit and u = the ones digit.
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