Answer:
56.8 m²
Step-by-step explanation:
This shape is clearly a trapezium / trapezoid. So :
Area of a trapezium is given by the formula :
Substitute values given in diagram :
a = 4.2
b = 10
h = 8
7.1 × 8 = 56.8
Units will be m² as this is area
Giving us our final answer of 56.8 m²
Answer:
θ = 85.93° (≈ 86°)
Step-by-step explanation:
arc length : 2πr = θ : 360°
7.5 : 2πr = θ : 360°
θ = (7.5 * 360°) / (2π*5) = 2700 / 31.42 = 85.93°
θ ≈ 86°
Answer:
a) This will result in a binomial distribution.
b) This will not result in a binomial distribution.
Step-by-step explanation:
Binomial probability
The binomial probability is the probability of exactly x successes on n repeated trials, and each trial can only have two outcomes.
So:
(a) The National Health Institute checks on 100 people who had a certain type of cancer in the year 2000 and records whether they are alive or not.
Fixed number of trials(each person checked is a trial) with a fixed probability(there is a probability that the person who had that type of cancer is alive).
So it results in a binomial distribution.
(b) Calling all your friends until you have 2 people willing to play on your volleyball team.
There is not a fixed number of friends that are going to be asked, so this does not results in a binomial distribution.
<span>
<span>7.4
divided by 185 is 0.04. This means that 7.4 is four percent of 185, which is
seen when we multiply 0.04 by 100 to convert it to a percent.
So the answer is 185 lb ± 4%.</span>
</span>
