3 years ago

A survey of 30 students in line during registration revealed that 5 were Math majors,

Mathematics

1 answer:

Andreyy893 years ago

4 0

Answer:

23.333 percent

Step-by-step explanation:

7/30 of the students are undecided.

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Let's formulate an equation first. For exponential growth, we follow the formula. b = 800, r - 0.027. Hence,

y = 800(1+0.027)^t

Then, at t = 21, y will be determined
y = 800 (1+0.027)^21
y = 1399.81 = 1400

Thus, the amount of bacteria present after 21 hours is 1400.

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Answer:

Option C is the correct option.

Step-by-step explanation:

$f(x) = a {x}^{2} + bx + c$

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So , ${3}^{rd}$ option has real and distinct roots.

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