Expression consists of numbers, variables, and mathematical operations. The expression f(w)=5(w+4) is equal to f(9)=5(9)+20.
<h3>What is an Expression?</h3>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The expression is given to you is,
Now, if we solve the expression it can be written as,
substituting the value of w, we will get,
Hence, the expression f(w)=5(w+4) is equal to f(9)=5(9)+20.
Learn more about Expression:
brainly.com/question/13947055
Answer:
Train A = 299 tons Train B = 50 tons
Step-by-step explanation:
Train A = x
Train B = y
x+y = 349
x= y +249
Plug in one equation into another
y+249+y= 349
Simplify
2y+249=349
Subtract 249 from both sides
2y=100
Divide both sides by 2
y=50
Plug it into the x equation to solve for x
x+50=349
-50 from both sides
x=299
Answer:568,000
Step-by-step explanation:
The graph of the function for values of x ranging from -6 to +6 is shown below.
<h3>Graphing a Quadratic function</h3>
From the question, we are to graph the given quadratic function
The given quadratic function is
f(x) = x² + 3x − 4
The graph of the function for values of x ranging from -6 to +6 is shown below.
The table of values are
x f(x)
-6 14
-5 16
-4 0
-3 -4
-2 -6
-1 -6
0 -4
1 0
2 6
3 14
4 24
5 36
6 50
Learn more on Graphing a quadratic function here: brainly.com/question/9028052
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Answer:
x = -2
Step-by-step explanation:
