C = child’s dosage in milligrams
a = age of the child
A = adult dosage in milligrams
Answer:
Step-by-step explanation:
The given expression is
Where , because according to the problem, the child is 6 years old.
Replacing and solving, we have
Therefore, if the adult dosage is 180 milligrams, and the child is 6 years old, the right dosage is 60 milligrams.
2x^2+5x-9=0
The quadratic equation 2x^2+5x-9 = 0 has two solutions or zeros, which may be real or complex. They can be found using the quadratic formula: x = [-5 + sqrt(97)]/4 and x = [-5 - sqrt(97)]/4.
The equation given is 2x^2+5x-9=0, which is a quadratic equation. The solutions or zeros of a quadratic equation can be found using the quadratic formula: x = [-b ± sqrt(b^2 - 4ac)]/2a. Here, a=2, b=5, and c=-9.
Let's substitute these values into the formula:
x = [-(5) ± sqrt((5)^2 - 4*2*(-9))]/2*2
x = [-5 ± sqrt(25 + 72)]/4
x = [-5 ± sqrt(97)]/4
Therefore, this equation has "two solutions" or zeros, which are x = [-5 + sqrt(97)]/4 and x = [-5 - sqrt(97)]/4.
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The temperature dropped by −2.5 Celsius degrees for 5 consecutive days. What was the total decrease in temperature over the 5-day period, expressed as a signed number?
Answer:
The question is incomplete. The complete question is :
A plane traveling at a constant speed flew over Pittsburgh, Saint Louis, Albuquerque, and Phoenix on its way from New York to San Diego.
Complete the table as you answer the questions. Be prepared to explain your reasoning.
segment time distance speed
Pittsburgh to Saint Louis 1 hour 550 miles
Saint Louis to Albuquerque 1 hour 42 minutes
Albuquerque to Phoenix 330 miles
Step-by-step explanation:
We can complete the table as :
segment time distance speed
Pittsburgh to Saint Louis 1 hour 550 miles 550 miles/hour
Saint Louis to Albuquerque 1 hour 42 minutes 93.5 miles550 miles/hour
Albuquerque to Phoenix 3/5 hour 330 miles 550 miles/hour
Since it is given in the question that the plane is flying in a constant speed from one place top another place.
So, it is maintaining the same speed to cover different distances for different time.
Thus the constant of proportionality is 550.
The constant of proportionality depends on the specifics of the problem at hand. Without further details, it's impossible to definitively say if either Diego or Andrew is correct in their assertion.
Given the question, the constant of proportionality depends on the context and the given problem. We can't necessarily say that Diego or Andrew is correct without more information regarding the variables they are considering. In mathematics, a constant of proportionality is the constant value or ratio that relates two variables in a proportional relationship. To determine whether Diego's or Andrew's values are correct, we will need the specifics of the problem at hand.
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