Is x+y is an algebraic expression?
1 answer:
You might be interested in
Answer:
3.9 mi/h
Step-by-step explanation:
If the boy is rowing perpendicular to the current, the two vectors form a right triangle.
AB represents the downstream current, BC is the speed across the river, and AC is the ground speed of the boat
AC^2 = 2.4^2 + 3.1^2 =5.76 + 9.61 = 15.37
AC = sqrt(15.37) = 3.9 mi/h
The boat's speed over the ground is 3.9 mi/h.
Answer: OPTION C.
Step-by-step explanation:
In order to solve the given exercise, you can follow these steps:
1. Given the following function f(x):
You must substitute into the function f(x). Then:
2. Evaluating, you get:
3. Now, the next step is to substitute into the function g(x):
4. Finally, evaluating, you get the following result:
You can identify that it matches with the Option C.