A. the ability of your heart and lungs to work during prolonged exercise.
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Answer:16. 290 in the nearest ten 300 the the nearest 100 20. 599 is the greatest 550 is the least 22. the number is 145
Step-by-step explanation:
Answer:
a) 20 years
Step-by-step explanation:
Hina: x
Nora: x + 4
x + x + 4 ≤ 45
2x + 4 ≤ 45
2x ≤ 41
x ≤ 20.5
20 years old and 15 years old would be ≤ 20.5 but the question asked for maximum possible age so 20 years old it is.
5=4x+2x-7
5+7=6x
12=6x
12/6=6x/6
2=x
Answer:
C
Step-by-step explanation:
Using Pythagoras' identity in right triangle BPO
with PB = 4 ( half of AB ) and OB = 5 ( radius of circle )
OP² + 4² = 5²
OP² + 16 = 25 ( subtract 16 from both sides )
OP² = 9 ( take the square root of both sides )
OP = 
= 3
