Answer:
(f+g)(x) = 13x + 3
Step-by-step explanation:
Rewrite f(x)=2x+7 and g(x)=11x-4 in columns, as follows:
f(x)=2x+7
+g(x)=11x-4
----------------
Now add each column separately.
f(x)+g(x) = (f+g)(x) ("the sum of functions f and g")
2x + 11x = 13x, and, finally, 7-4 = 3.
Therefore,
f(x)=2x+7
+g(x)=11x-4
----------------
(f+g)(x) = 13x + 3
Answer:
24% error
Step-by-step explanation:
Vobserved - Vtrue
-------------------------------
Vtrue
38 - 50
---------------
50
=
-12
-------------
50
= -24%
= 24% error
Answer:
y = -108/5
Step-by-step explanation:
An inverse variation is xy = k where k is a constant
xy =k
6*-18 = k
-108 = k
xy = -108
Let x = 5
5y = -108
Divide by 5
y = -108/5
Mean = it's really just another word for average. You add all the values up together, and divide the sum by the number of values there are. So here :
9 + 13 + 9 + 10 + 10 + 9 + 10 + 10 + 11 + 9 = 100
And now, you count how many values there are ^ up there. There are 10 values (just count how many numbers there are) and then you have to divide 100 by 10.
100 ÷ 10 = 10
Your MEAN is : 10
