Answer:
f(-1) = -4
Step-by-step explanation:
f(-1) simply means that what is f(x) when x = -1?
Just plug in -1 for <em>x</em> to find your answer:
f(-1) = -3(-1) + 2(-1) - 5
f(-1) = 3 - 2 - 5
f(-1) = 1 - 5
f(-1) = -4
Answer:
5
Step-by-step explanation:
4.5*10^-8/ 9*10^-9
1) Reduce the fraction, express 9 as a product of multiplying 4.5*2
4.5*10^-8/4.5*2*10^-9
2) Then notice the common factor of numerator and denominator( 4.5) , get rid of it in both numerator and dnominator
3) 10^-8/ 2*10^-9= 1/2*(10^-8/10^-9)= 0.5* (10^-8/10^-9)
10^-8/10^-9= 10^(-8-(-9))= 10^1=10.
so 0.5*10=5 (it is the answer written in scientific form)
Answer:
b
Step-by-step explanation:
Using it's concept, the probability that a card is a factor of 54 is given by:
P(Factor of 54) = 1.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem, we have that there are 3 total outcomes, which are the cards 1, 2 and 3.
The factors of 54 are given as follows:
{1, 2, 3, 6, 9, 18, 27, 54}.
All the three cards are factors of 54, hence the probability that a card is a factor of 54 is given by:
P(Factor of 54) = 1.
More can be learned about probabilities at brainly.com/question/14398287
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