Answer:
7168
Step-by-step explanation:
The growth of the bacteria is expressed as:
<span>B(t) = 4 e^0.8t
</span>
where t is the time in units of hours. If the bacteria is allowed to grow for 8 hours then the number of bacteria present would be,
<span>B(t) = 4 e^0.8(8)
</span><span>B(t) = 2407</span>
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(Ⅰ) 2v² - 2v³ - 7 + 7v :
Standard Form → 2v³ + 2v² + 7v - 7v
Number of terms → Four (Polynomial)
Degree of Polynomial → Highest degree 3 (Cubic)
(Ⅱ) -3m -8m -7m²
Standard Form → -7m² - 8m - 3m
Number of terms → Three (Trinomial)
Degre of Polynomial → Highest degree 2 (Quadratic)
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9x - 3(x + 2) + 7
Multiply the bracket by -3
(-3)(x)=-3x
(-3)(2)=-6
9x-3x-6+7
Answer: 6x+1