Andrea has 3 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the
1 answer:
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Answer:
Option A
Step-by-step explanation:
From the question given in the picture attached,
Directrix of the parabola → y = 2
Focus of the parabola → (-5, 0)
Since, focus is below the directrix, parabola will open open downwards.
Equation of the parabola will be in the form of,
y - k = -4p(x - h)²
Here, (h, k) is the vertex of the parabola
p = Distance between vertex and focus or distance between vertex and directrix
Since, distance between vertex and focus = Distance between vertex and directrix
Therefore, vertex of the parabola → (-5, 1)
Now distance (p) between vertex (-5, 0) and focus (-5, 1) = 1 unit
By substituting these values in the equation,
y - 1 = -4(1)[x - (-5)]²
y - 1 = -4(x + 5)²
y = -4(x + 5)² + 1
Option A will be the answer.
Answer:
We inject 60.9628 milliliters of dosage.
Step-by-step explanation:
Given : You are to give an injection of a drug. The dosage is 0.4 mg per kilogram of bod The concentration of the drug in vial is listed as 500 ug/ml. The patient's chart Hosts weight as 168 pounds.
To find : How many milliliters (= cc) are you to inject?
Solution :
We know that,
1 pound = 0.453592 kg,
Patient's weight = 168 pounds
Patient's weight in kg = kg
The dosage is 0.4 mg per kilogram of bod.
So, dosage of patient weight =
We know, 1 micro gram = 0.001 mg
Concentration of drug is given by,
Now we are supposed to find milliliters inject,
So, milliliters of dosage required to inject is
Therefore, We inject 60.9628 milliliters of dosage.