Special Right Triangles
1 answer:
Answer:
first option
Step-by-step explanation:
Using the sine/ cosine ratios in the right triangle and the exact values
sin30° = , cos30° =
sin30° = =
=
( cross- multiply )
2x = 32 ( divide both sides by 2 )
x = 16
----------------------------------------------------------
cos30° = =
=
( cross- multiply )
2y = 32 ( divide both sides by 2 )
y = 16
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Solution :
The monthly average salary and the standard deviation of the salaries of five different countries are provided. A person is interested in the relationship between the job performance, job satisfaction and the job compensation of the five different countries and try to compare them.
She calculated the z scores for accounting that makes $ ,500 per month as :
Country z-score for salary $ 1,500
Brazil
US
China
Slovakia
Kuwait
From above it is clear that an account from China getting z score of 53.83 will ne more pleased than other countries because the salary of $1,500 in one month for this particular country corresponds to the highest z score.
Answer:
(a)12%
(b)20%
(c)49%
Step-by-step explanation:
(a)In the age group 58 and above:
- Number in favor of building the skateboard ramps=6
- Number opposed to building the skateboard ramps=44
- Total = 50
Percentage of those in favor =
(b)In the age group 18-37
- Number in favor of building the skateboard ramps=40
- Number opposed to building the skateboard ramps=10
- Total = 50
Percentage of those opposed to it =
(c)
- Total Number of those in favor of building the skateboard ramps=73
- Total Number opposed to building the skateboard ramps=77
- Total = 150
Percentage of those in favour =
Given number is 78/14.
We have to find two whole numbers between which given number 78/14 lies.
Let's convert that into mixed fraction.
To do that we divide 78 by 14 to find the quotient.
We see that 14 goes 5 times into 78 and leaves remainder of 8.
So we can rewrite 78/14 as .
means little more than 5 but less than 6.
So required two whole numbers are 5 and 6.