14/42 is 1/3, and 7/21 is also 1/3, so 7/21.
Answer:
B
Step-by-step explanation:
has a ratio of 6 to 1
Answer: 122 ft and 12.77 m
Step-by-step explanation:
First question answer = 100/cos35 = 122.07 = 122 ft
Second question answer = 12/sin70 = 12.77 m
<h2>
Answer:</h2>
The Maple tree.
<h2>
Step-by-step explanation:</h2>
The Sycamore is 15 and 2/3 feet tall, which is 15.667 feet.
The Oak is 14 and 3/4 feet tall, which is 14.75 feet.
The Maple is 15 and 3/4 feet tall, which is 15.75 feet.
The Birch is given as 15.72 feet.
Out of these, the tallest is the Maple, which is at 15.75 feet.
Answer:
a) 0.0821
b) 0.0111
c) 0.0041
Step-by-step explanation:
Exponential distribution:
The exponential probability distribution, with mean m, is described by the following equation:

In which
is the decay parameter.
The probability that x is lower or equal to a is given by:

Which has the following solution:

Either it lasts more 5 years or less, or it survives more than 5 years. The sum of the probabilities of these events is decimal 1. So

In all 3 cases, we want P(X > 5). So

In which

(a) lambda=.5


(b) lambda=0.9


(c) lambda=1.1

