Answer:
theres not alot of info it just says boys, and ends there
Step-by-step explanation:
Your expression is ambiguous.
Do you mean a + (2/5)a^2 + 3?
or perhaps a + 2 / (5a^2) + 3? Use parentheses for added clarity.
If you meant a + (2/5)a^2 + 3, then
(2/5)a^2 + 1a + 3 (this can't be simplified further)
Find the area of the larger rectangle around the shaded shape and subtract the 4 you congruent triangles from it.
8x18 - [4(1/2 x 4 x 4)
144 - 4(8)
144-32
112 sq. m
<h3>
Answer: Choice A</h3>
Explanation:
The square root undoes the squaring operation.
Think of a square that is 1 ft by 1 ft. Its area would be 1*1 = 1 sq ft.
Now imagine you told your friend "the area is 1 sq ft" and you didn't relay the side lengths. Your friend would use the square root to find the side length is 1 ft.
I'm not sure why your teacher is using plus minus notation when that is not correct. Saying 
is not true. The result of a square root is simply one value only. If your teacher meant 
, then it would be a true statement; however, there's no need to involve negative numbers for this problem.
x*(1.035) + (4,200-x)*(1.045) = 4,374.00
1.035x + 4,389.00 -1.045x = 4,374.00
15.00 = .01x
x = 1,500 so x (or 1,500) invested at 3.5% and
(4,200 - 1,500) (or 2,700) invested at 4.5%
