Find the area of the right triangle. If necessary, round to the nearest tenth.
1 answer:
Answer:
a. 75 m
Step-by-step explanation:
Given,
Length of hypotenuse = 18m
Length of perpendicular = 10 m
To find:
Area of the right angled triangle
Formula to find area of the right angled triangle =
To find: Length of base
Hypotenuse² = Perpendicular² + Base²
Base² = Hypotenuse² - Perpendicular²
Base² = 18² - 10²
Base² = 324 - 100
Base² = 224
Base =
Base = 14.97 m
Area of the right angled triangle =
⇒
⇒ 74.85 m² or,
round to the nearest tenth = 75 m²
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The question is incomplete. Here is the complete question:
Samir is an expert marksman. When he takes aim at a particular target on the shooting range, there is a 0.95 probability that he will hit it. One day, Samir decides to attempt to hit 10 such targets in a row.
Assuming that Samir is equally likely to hit each of the 10 targets, what is the probability that he will miss at least one of them?
Answer:
40.13%
Step-by-step explanation:
Let 'A' be the event of not missing a target in 10 attempts.
Therefore, the complement of event 'A' is
Now, Samir is equally likely to hit each of the 10 targets. Therefore, probability of hitting each target each time is same and equal to 0.95.
Now,
We know that the sum of probability of an event and its complement is 1.
So,
Therefore, the probability of missing a target at least once in 10 attempts is 40.13%.