(1.636, 14.545) simply plug in the y=4x+8 into the second equation and then solve
Answer:
well just do area, and since it's the same in each side 12×4= 144
You must simplify
the expresision given, as it is shown below:
1. The exponents can be simplify if
they are divisible between index 4 of the root. So, let's decompose
the number 144:
144=(2˄4)(3˄2)
2. Now, you have to divide the exponents
between index 4.When you do this, you obtain:
[(144)(a˄12)(b˄3)]˄1/4
[(2˄4)(3˄2)(a˄12)(b˄3)]˄1/4
2a˄3[(3˄2)(b˄3)]˄1/4
2a˄3(9xb˄3)˄1/4
Then, the correct answer is the first
option: 2a˄3(9xb˄3)˄1/4
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Total investment = 12,000
Let x be invested in Stock at a return of 14%
The rest (12,000-x) invested at a loss of 6%
0.14*x - 0.06*(12,000-x) = 680
0.14x -720 +0.06x = 680
0.2x = 1400
x = 7000
So $7,000 was invested at a rate of 6% and $5,000 (12000-7000) was invested at a loss of 6%
