Answer:
There is approximately 5.475 liters of blood in the body.
Step-by-step explanation:
At a resting pulse rate of 75 beats per minute, the human heart typically pumps about 73 ml of blood per beat.
73 ml in liters =
liters
Now, 75 beats/min x 0.073 liters/beat = 5.475 liters/min
And 5.475 liters/min x 1 min/body = 5.475 liters/body
Hence, there is approximately 5.475 liters of blood in the body.
Step-by-step explanation:
4x+x-1+2x+1
since any number power zero is one
group like terms
4x +x+ 2x-1+1
7x=0
divide both sides by 7
x= 0
Answer:
(-4,-19)
Step-by-step explanation:
y = x² + 8x - 3
y = x² + 2(x)(4) + 4² - 4² - 3
y = (x + 4)² - 16 - 3
y = (x + 4)² - 19
Vertex: (-4,-19)