Answer:
X=32
Step-by-step explanation:
Answer:
The answer is 2940ft^2
Step-by-step explanation
First convert length and width to feet using the value given (7ft=1inch).
Multiply these values for the actual area.
The actual area of the lawn is 2940ft^2
(4x - 2)(6(2x + 7)) = 0
(4x - 2)(6(2x) + 6(7)) = 0
(4x - 2)(12x + 42) = 0
48x² + 168x - 24x - 84 = 0
48x² + 144x - 84 = 0
x = <u>-144 +/- √(144² - 4(48)(-84))</u>
2(48)
x = <u>-144 +/- √(20,736 - 16,128)</u>
96
x = <u>-144 +/- √(4,608)
</u> 96<u>
</u>x = <u>-144 +/- 67.88</u><u>
</u> 96
x = -1.5 +/- 0.707083
x = -1.5 + 0.707083 x = -1.5 - 0.707083
x = -0.792917 x = -2.207083
<u />
<span><span>18<span>x5</span></span><span>y2</span></span><span><span>2x</span>−<span>3<span>y</span></span></span>
=<span><span><span>18x5</span>y2</span><span>2x−<span>3y</span></span></span>
The answer is investment B.
Solution:
For investment A - the expected value of the investment is
($20,000) * 25% = ($5,000)
$80,000 * 25% = <u>$20,000</u>
$15,000
For investment B - the expected value of the investment is
($50,000) * 30% = ($15,000)
$180,000 * 20% = <u>$36,000
</u> $21,000
<u>
</u>So you can gain more by $6,000 if you choose investment B.<u>
</u>
