<span><span><span>x2</span>+2x−22=0</span><span><span>x2</span>+2x-22=0</span></span>Use the quadratic formula to find the solutions.<span><span><span>−b±<span>√<span><span>b2</span>−4<span>(ac)</span></span></span></span><span>2a</span></span><span><span>-b±<span><span>b2</span>-4<span>(ac)</span></span></span><span>2a</span></span></span>Substitute the values <span><span>a=1</span><span>a=1</span></span>, <span><span>b=2</span><span>b=2</span></span>, and <span><span>c=−22</span><span>c=-22</span></span> into the quadratic formula and solve for <span>xx</span>.<span><span><span>−2±<span>√<span><span>22</span>−4⋅<span>(1⋅−22)</span></span></span></span><span>2⋅1
there</span></span></span>
Answer:
The answer is be the intercept
Area = length x width
so times the two fractions and your answer is tbe area
Inversely proportional means that the relation between y and x is of the form
y = c/x
where c is a constant.
Get c from knowing y=42 when x=6.
42 = c/6
Then c = 6*42 = 252
Therefore,
y = 252 / x
For x=9,
y = 252/9 = 28
Part A+B: $360 ÷ 12 = $30
Her calculation is not reasonable, you will need to do 63/12 which is $5.25
5.25x12=63
