Principle ? What do you mean lol
Answer:
The answer is B
Step-by-step explanation:
Hope this helps : )
Answer:
To find your heart rate you would, D. 220 - your age
Step-by-step explanation:
You can calculate your maximum heart rate by subtracting your age from 220. For example, if you're 45 years old, subtract 45 from 220 to get a maximum heart rate of 175. This is the average maximum number of times your heart should beat per minute during exercise
4x - 2y = 22
Start by adding 2y to both sides to cancel out the -2y
4x = 22 + 2y
Now you can divide by 4
x = 22/4 + 2y/4
Reduce all the fractions to get your answer, which is

Answer:

Step-by-step explanation:
we know that
In the right triangle ABC of the figure
Applying the Pythagoras Theorem

substitute the given values

Solve for c



