Answer:
( f o g) (x) = 3x²+5
Step-by-step explanation:
We have given two functions :
f (x) = 3x + 2
g(x) = x² + 1
We have to find ( f o g) (x) =?
( f o g) (x) = (f(g(x))
Putting the values of functions in above formula.
( f o g) (x) = 3(x²+1)+2
( f o g) (x) = 3x²+3+2
Adding like terms,we have
( f o g) (x) = 3x²+5
( f o g) (x) = 3x²+5 is the answer.
Answer: (f o g)(x)=
Step-by-step explanation:
To solve this problem you must apply the following proccedure:
(f o g)(x) indicates that you must substitute the function g(x) into the function f(x).
Therefore, you have:
(f o g)(x)=
Now, you must simplify it, as it is shown below:
Apply the distributive property and add the like terms:
(f o g)(x)=
(f o g)(x)=
Solution:
Given that,
Kathleen makes 144 cupcakes each week
Of these she sales 25 each week and gives away the rest
To find: Linear function that represents the number of cupcakes Kathleen has given away over time
Let "x" be the number of weeks
Number of cakes given away = 144 - 25 = 119
Thus, number of cupcakes Kathleen has given away over "x" weeks is given as:
f(x) = 119x
Where, f(x) is the number of cupcakes Kathleen has given away over "x" weeks
The linear function representing the number of cupcakes Kathleen gives away each week is y = 119x, where x represents weeks and y the total number of cupcakes given away.
The problem is asking for a linear function that represents the number of cupcakes Kathleen gives away each week. Kathleen makes 144 cupcakes every week and sells 25 of them. The rest, she gives away.
Therefore, the number of cupcakes she gives away each week is 144 - 25 = 119. If we let x represent weeks and y the total number of cupcakes given away, the linear function we're looking for will be y = 119x. The slope represented by 119 signifies the number of cupcakes given away weekly. The x-axis signifies time (in weeks) and the y-axis signifies the cumulative number of cupcakes given away.
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Answer:
C) 48.786, 152°
Step-by-step explanation:
To add the vectors u, v and w, we first need to rewrite each vector in component form (where vectors are represented using the unit vectors i and j along the x and y axes).
The (x, y) components of a vector, given its magnitude (r) and direction (θ), are (r cos θ, r sin θ), where θ is measured in the anticlockwise direction from the positive x-axis.
Every vector in two dimensions is made up of horizontal and vertical components, so any vector can be expressed as a sum of i and j unit vectors. Therefore, the i + y form of a vector is:
So, the component form of the given vectors are:
Sum the vectors:
Calculate the magnitude of the resultant vector ||R||:
The direction θ can be found by finding the angle with the horizontal, which is given by:
As the resultant vector is in quadrant II (since the i component is negative and the j component is positive), we need to add 180° to the value of tan⁻¹(y/x). Therefore:
Therefore: