Answer:
$2090
Step-by-step explanation:
Amt = Principal x rate x time (in years)
A = 2000 x .09 x .5
The one of the left isn't too tricky, in the bottom left of it you have 1/2 of 1/4 of the shape, and on the bottom right you have 1/4 of 1/4. Imagine the whole shape was cut up like that bottom right bit into 16 triangles, then you would have three of them shaded (see my diagram).
The one on the right seems like guesswork to me, so I'm sorry if I'm wrong. It look like you just have to use your eyes to work out how much of the bottom half of the shape is shaded: looks like 1/16 to me (i.e. you can draw four of those along and four down, again, see my diagram.) So plus the top half, which is 8/16, you get 9/16.
Answers: left picture: 3/16.
right picture: 9/16.
38) -first you have to subtract 4-2=2
-then solve for 2^5=32
-subtract 32-20=12
-and finally multiply 12*3=36
40) -you have to solve for the numerator and denominator first
-the denominator is simple because you just have to do 2^3 which is 8
-to solve for the numerator you have to do what's in the parentheses first (3^4-7^2) which gives you 32
-the equation you should have now is 22+1^3+32 all divided by 8
-1^3 just equals 1and then you just solve for the numerator
-to solve for the numerator you have to add 22+1+32 which gives you 55 as the numerator
-since 55 cannot be divided by 8, your answer will be 55/8 or 6.875
42) -first you have to solve for the parentheses in the brackets so solve for (67-2^6) which equals to 3
-now your numerator should look like this: 2[8+(3)^3]
-you have to solve for 3^3 which is 27
-now you solve what you have left in the brackets [8+27] =35
-multiply 2*35 which gives you 70
-70 cannot be divided by 9 so your answer is 70/9 or 7.777777778
For this case you have the following advantages:
1) you can see the graph of both equations
2) you can see where the equations intersect
3) the point of intersection represents the solution to the system of equations.
4) You can solve the problem in much less time than doing it by hand
5) You can find very accurate solutions.