Answer:
20
Step-by-step explanation:
The first step is to find out the similarity reason of the sides of the triangle, so we just divide the big side by the small side (12/4=3).
Now, for the similarity reason of the areas, we just square that number (3^2=9).
Then we just divide the area of the big triangle by 9, which is 180/9= 20.
Answer:a
Step-by-step explanation:did
Answer:
Step-by-step explanation:
-This is a binomial probability distribution problem.
-Given that p=0.86 and n=11, the sample variance can be calculated using the formula:
#We substitute the given parameters in the formula to solve for variance:
Hence, the sample variance is 1.32
The guarantee which should be given by the manufacturer in years is; 0.405years
<h3>Percentages and Averages</h3>
Since the average life of a scooter is 12 years with a standard deviation of 1.5 years.
Hence, the maximum life of any electric scooter is 13.5 years.
On this note, to offer a guarantee with the intention to replace only 3% of the scooters;
We must evaluate 3% of 13.5 years as follows;
- Guarantee offer = 3% of 13.5 years
- Guarantee offer = (3/100) × 13.5
Guarantee offer = 0.405 years
Read more on percentages;
brainly.com/question/24304697
E. he did not multiply 3 by -1 correctly
The simplify expression is 9 - 3 + 6x = 6 + 6x
