Answer:
a) Lower limit range = 119.7 ≈ 120
b) Upper limit range = 136.8 ≈ 137
Step-by-step explanation:
Given:
a) Lower limit range =
Therefore,
For the given person of age 43 years old
substituting the value of age in the above equation, we get
Lower limit range =
or
Lower limit range = 119.7 ≈ 120 beats per minute
b) The upper limit range = 
Therefore,
For the given person of age 43 years old
substituting the value of age in the above equation, we get
Upper limit range = 
or
Upper limit range = 
or
Upper limit range = 136.8 ≈ 137 beats per minute
3x²-33x-180=3(x²-11x-60)=3(x-15)(x+4)
the roots are when x-15=0, x=15 and when x+4=0, x=-4
d and h are the answers.
Answer:
It C
Step-by-step explanation:
6y-2y is 4y and 4y+ 8y is 12y
Answer:
2/5, 3/7, and 2/11
Step-by-step explanation: