3 because length times width = area right. so 3x3=9.
Answer:
![3.84 * 10^{9}](https://tex.z-dn.net/?f=3.84%20%2A%2010%5E%7B9%7D)
Step-by-step explanation:
![\\\\(1.2 * 10^{4}) * (3.2 * 10^{5}) = 1.2 * 3.2 * 10^{4} * 10^{5} = 3.84 * 10^{4+5} = 3.84 * 10^{9} \\\\](https://tex.z-dn.net/?f=%5C%5C%5C%5C%281.2%20%2A%2010%5E%7B4%7D%29%20%2A%20%283.2%20%2A%2010%5E%7B5%7D%29%20%3D%201.2%20%2A%203.2%20%2A%2010%5E%7B4%7D%20%2A%2010%5E%7B5%7D%20%3D%203.84%20%2A%2010%5E%7B4%2B5%7D%20%3D%203.84%20%2A%2010%5E%7B9%7D%20%5C%5C%5C%5C)
The annual salary of Mrs. Fredrick is $ 39397.2
<u>Solution:</u>
Given, Mrs. Frederick is paid semimonthly.
Her semi-monthly salary is $1.641.55.
Now, let us find her monthly salary first.
<em>monthly salary = 2 x semi – monthly salary </em>
So, monthly salary = 2 x 1,641.55 = $ 3283.1
Since there 12 months in a year, we obtain the annual salary as follows:
Now, the<em> annual salary = 12 x monthly salary </em>
Annual salary = 12 x 3283.1 = $ 39397.2
Hence, the annual salary of Mrs. Fredrick is $ 39397.2
90-25.1=64.9
since complementary angles equal 90
hope this helped