PLEASE HELP ME 12 POINTS

Mathematics

1 answer:

m_a_m_a [10]2 years ago

3 0

Answer:

∡A = 48°

∡B = 58°

∡BCA = 74°

Step-by-step explanation:

start by finding m∡BCA; this angle is supplementary with ∡BCD and the pair must add up to 180. therefore, m∡BCA = 74°

all three interior angles of a triangle must add up to 180:

74 + 4y + 3y + 22 = 180

96 + 7y = 180

7y = 84

y = 12

substitute '12' for 'y' in 3y + 22 to get 58

substitute '12' for '4y' to get 48

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Answer:

From 0 hours to 2 hours.

Step-by-step explanation:

From the attached graph, we can see that on the y-axis, denotes the level of ibuprofen in the patient’s bloodstream while the x-axis denotes the amount of hours after the ibuprofen was taken.

Now, looking at the graph, we can see that the curve goes up from a time of 0 hours which corresponds to 0 mg of ibuprofen to a time of 2 hours which corresponds to 400 mg of ibuprofen.

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