Answer:
The linear equation representing cost after using coupon is 
.
Step-by-step explanation:
Given:
Value of coupon = $18
Let the cost of the calculator be 'x'.
And the Cost after redeeming the coupon be 'y'.
We need to write a linear equation to represent using the coupon.
Solution:
Now we can say that;
Cost after redeeming the coupon will be equal to cost of the calculator minus Value of coupon.
framing in equation form we get;
Hence The linear equation representing cost after using coupon is .
Answer:
37.7
Step-by-step explanation:
2πr = circumference
r=d/2
r=12/2
r=6
2*π*6 = 37.68
Answer:
15 - 17 = 0.013333 (1.3333%)
latte drop = 8.3%
gasoline = 9%
Subtrahend is the number that is getting subtracted from the minuend, and the result is called the difference. In other words:
Minuend - Subtrahend = Difference
So...
678 - 489 = 189
Hope that helps :)
Answer:
By knowing the standard deviation, one gets the idea of how the value is scattered or dispersed about the mean.
Step-by-step explanation:
Let us first define standard deviation.
As it is known that the standard deviation is a measure of dispersion which express the spread of observation in terms of the average of deviations of observations from some central values.
Measure of dispersion gives us an idea about homogeneity or heterogeneity of the distribution.
Standard deviation is supposed almost an ideal measure of dispersion except the general nature of extracting the square root.
Thus for the given question, if we want to compare the two different groups of students whose mean score is 85. Here the standard deviation for both the groups interprets an idea about how the individual score for each group scattered or varied about the mean score i.e. 85.
