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2 years ago

Question choices: A: I, IV B: II, III, IV C: III, IV D: II, III

Mathematics

1 answer:

gulaghasi [49]2 years ago

4 0

0Answer:

Step-by-step explanation:

Find the zeros by letting y = 0 , that is

x² - x - 6 = 0 ← in standard form

(x - 3)(x + 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 3 = 0 ⇒ x = 3

x + 2 = 0 ⇒ x = - 2

Since the coefficient of the x² term (a) > 0

Then the graph opens upwards and will be positive to the left of x = - 2 and to the right of x = 3 , that is in the intervals

(-∞, - 2) and (3, ∞ ) → option A

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mr_godi [17]

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I do 1 option for you as an example, you need to check the leftover by yourself.

Step-by-step explanation:

for d) y(0) = 0 and y'(pi) =0

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2 years ago

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2 years ago

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Answer: 41.5 min

Step-by-step explanation:

This problem can be solved with the Radioactive Half Life Formula:

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Where:

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So, we need to substitute the given values and find $t$ from (1):

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Applying natural logarithm in both sides:

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Clearing $t$ :

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