x = –6 or x = –8
x = 6 or x = –8
x = 6 or x = 8
Answer:
Will you really mark brainliest though?
Step-by-step explanation:
R=165-0.75a for men,
where a represents the person’s age. What would the desirable heart rate be for a 46 year old woman?
a. 113 beats per minute
b. 172.9 beats per minute
c. 143.7 beats per minute
d. 63 beats per minute
Answer:
Option a is correct.
The desirable heart rate be for a 46 year old woman is, 113 beats per minute.
Step-by-step explanation:
Here, R represents a person's desirable heart rate(in beats per minute)
and a represents the person's age.
The desirable heart rate of a person's can be approximated by the formulas;
For women:
......[1]
For men:
......[2]
To find the desirable heart rate be for a 46 year old woman.
⇒
Substitute in [1] we get;
beats per minute
Therefore, 113 beats per minute would the desirable heart rate be for a 46 years old woman.
= 15 cuts the x-axis at the point ________.
Answer:
(0,5)
Step-by-step explanation:
3x-5y=15
Plug in 0 for y, because we are trying to find the value of x, when y is 0
so, 3x-5(0)=15
3x=15 Divide both sides by 3
x=5
so the answer in coordinate form is (0,5)