Answer:
Mary is 10 years old, and her father is 40 years old.
Step-by-step explanation:
Let Mary's age = x.
Mary's father is four times as old, so he is 4x.
Five years ago, Mary was x - 5, and her father was 7(x - 5).
Five years ago, Mary's father was 4x - 5.
7(x - 5) = 4x - 5
7x - 35 = 4x - 5
3x = 30
x = 10
4x = 4 * 10 = 40
Mary is 10 years old, and her father is 40 years old.
It would be 6x^2 + 14x -12
Hello!
In trigonometric functions, the amplitude of a trigonometric function is the maximum displacement on the graph of that function. In the case of the sine and cosine functions, this value is the leading coefficient of the function.
If y = A sin x, then the amplitude is |A|.
Amplitude is like the height of a trigonometric function. And in this case, the amplitude of this function 3, and the height is 3.
Therefore, the maximum value is positive 3, and the minimum value is negative 3, so the function that has a maximum y-value of 3 is choice A, y = 3sin(x).
Answer:
The Independent is the Number of Hours while the Dependent is the Number of Miles
Equation: y= 50x
Step-by-step explanation:
I Hope this helped
Answer:
Step-by-step explanation:
1 h 25 min×3=3hr 75 min=4hr 15 min(1 hr=60 min)