Erica used friendly numbers to find 43-19 she added 1 to 19 and subtracted 1 from 43 what is erica's error? Explain
1 answer:
You might be interested in
Answer:
x = 2
Step-by-step explanation:
note that 4096 = , then
=
Since bases on both sides are equal, both 8 , then equate the exponents
2x = 4 ( divide both sides by 2 )
x = 2
Answer:
5
Step-by-step explanation:
distance formula
Answer:
The experimental probability of rolling a 4 in the next trial is .
Step-by-step explanation:
The experimental probability is the ratio of the favorable outcomes to the total number of outcomes.
That is, the probability of an event <em>E</em> is:
Here,
<em>n</em> (E) = favorable outcomes
<em>N</em> = total number of outcomes
It is provided that Deon rolled a six-sided die 40 times.
And in these 40 rolls, the number 4 appeared 15 times.
A six-sided die has an equal probability of landing on any of the six numbers.
The rolling a die is an independent event experiment, i.e. the result of the previous roll does not affect the result of next roll.
Let <em>X</em> = number on the face of the die
Compute the probability of rolling a 4 in the next trial as follows:
P (Rolling a 4) = P (X = 4)
Thus, the experimental probability of rolling a 4 in the next trial is .