Answer:
Step-by-step explanation:
you have to do 49000 - 8200 which is 40800, and in scientific notation, that is 4.08 * 10^4
Answer:
90
Step-by-step explanation:
9^2 = 81 and 3^2 = 9
81 + 9 = 90
Solution

For this case we can take square root in both sides and we have:
![3x-5=\pm\sqrt[]{19}](https://tex.z-dn.net/?f=3x-5%3D%5Cpm%5Csqrt%5B%5D%7B19%7D)
And solving for x we got:
![x=\frac{5\pm\sqrt[]{19}}{3}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B5%5Cpm%5Csqrt%5B%5D%7B19%7D%7D%7B3%7D)
then the solutions for this case are:
B and E
Answer:
Step-by-step explanation:
Find the perimeter of an isosceles triangle whose equal sides have a size of 10 m each and the angle between them equal to 30°. We need to know all sides in order to find the perimeter of this triangle. Let x be the base of this isosceles triangle.
That would be the area of a circle of radius 12 miles
= pi r^2 = 452.4 square miles to nearest tenth.