Answer:
70%
Step-by-step explanation:
14/20= 0.7 = 70%
Answer: =125.6
Step-by-step explanation:
Add 26.5 to both sides of the equation
Simplify
Answer:
Option 1 is correct that is the function f(x) is an arithmetic sequence.
Step-by-step explanation:
We have been given the information that function is increasing by 4 for every unit in the domain.
That means difference between the consecutive terms will be same that is common difference exists
For example:
we have a function f(x)=x
Since, it is increasing by 4 for every unit means function becomes x,x+4,x+4+4
The common difference is 4.
Hence, the function f(x) is an arithmetic sequence.
therefore, option 1 is correct.
Answer:
Step-by-step explanation:
Evaluate g(- 4) and f(- 4) by substituting x = - 4 into g(x) and f(x), that is
f(- 4) = - 10(- 4) + 9 = 40 + 9 = 49
g(- 4) = (- 4)² + 12 = 16 + 12 = 28
Then
= =
Since the real track has a gauge of 3 feet but the model railroad track has a gauge of 3/4 inches, the scale factor must be 1/4, because you must follow the rule
"true measurement * scale factor = model measurement"
In fact, we have
This implies that the original driving wheels height, 44 inches, must be scaled down to
inches.