The answer is (b+2)(a+3)
You have to group each like term but have them be able to separate evenly so when you do the foil method it goes back to the original equation.
Answer:
$201.60
Step-by-step explanation:
12% of 180 = 21.6
Cost of health club = 180
180 + 21.6 = $201.60
Answer:
15 and 20
Step-by-step explanation:
Hello from MrBillDoesMath
Answer: 12, 9
Discussion:
Let x be the first number and y the second number. The form the problem statement:
x + y = 21
x - y = 3
Add the two equations. This gives:
(x + x ) + ( y-y) = 21 + 3 =>
2x + 0 = 24 =>
x = 12
Since x -y =3, substituting in the value of x gives, 12 - y = 3 so y = 9
Thank you,
Mr. B
The error bars are used to indicate the variability of the data presented in a graph.
There are several quantities that can be used to generate error bars in the graph. These are:
standard deviation
standard error
confidence interval
Usually, one standard deviation above and below the mean is used although it is advised to indicate which variability data is used to generate the error bars in the graph since the 3 quantity given are not equal.
