Answer:
A
Step-by-step explanation:
f(x) = 7x² - 15x + 2
A) f(1) = 7*1² - 15*1 +2 = - 6
f(1.5) = 7*(1.5)² -15*1.5 + 2 = - 4.75
B) f(2.2) = 7*(2.2)²-15*(2.2)+2 = 2.28
C) f(1) = 7*1² - 15*1 +2 = - 6
f(1) = 7*2² - 15*2 +2 = 0
D) not for all real numbers because we already have
f(2.2) = 7*(2.2)²-15*(2.2)+2 = 2.28 that is positive.
Answer:
n>19
Step-by-step explanation:
Answer:
C) At most one sample is mutated
Step-by-step explanation:
If there are 15 samples, it means that 15 is the total (100%) of samples. Then, if we know that there is a chance that 3% are mutated, then we calculate the 3% of 15:

This means that at most one sample is mutated, as this result is not zero (we discard answer A), and 0.45 is not more than half of the samples.