Eleven is the sum. Add end is 7 and the ones is 4
The mean is calculated by adding all the data values together, and then dividing the sum by the number of data values.
12+10+11+13+14+10+12+13+14=109
109÷9≈12.1
<u>The mean of the data set is about 12.1.</u>
Answer:
(x,y)=(-1,-4)
Step-by-step explanation:
-4x + y = 0
+4x +4x
y=4x
-5x - 2y = 13
+5x +5x
-2y = 5x+13
-2(4x) = 5x+13
-8x=5x+13
-5x -5x
-13x/-13=13/-13
x=-1
Thus:
y=4x
y=4(-1)
y=-4
Answer:
-7. negative
Step-by-step explanation:
49 + -56
49 - 56
-7
Answer:
Part 1) The width of the pad is
Part 2) The solutions are
and
Step-by-step explanation:
Part 1)
Let
x----> the width of the pad
we know that
Solve for x
Solve the quadratic equation by graphing
The solution is
see the attached figure
Part 2) we have
we know that
The formula to solve a quadratic equation of the form is equal to
in this problem we have
so
substitute in the formula