2x - 5y = 10
2(-3.5) - 5y = 10
-7 - 5y = 10
<u>+7 +7</u>
<u>-5y</u> = <u>17</u>
-5 -5
y = -3.4
The value of y is equal to A. -3.4.
A square is an example of a regular quadrilateral.
Answer:
$90
Step-by-step explanation:
0.75*120
Using the discriminant from the quadratic formula (√b²-4ac) since that is the only way to get a solution to not be real (b²-4ac has to be negative), we get
m²-4*3*7=m²-84. Solving for m if m²-84=0, m²=84 and m=+-√84. Therefore, if m is positive, the highest possible value of m is √84. However, we have to find the integer value - with a bit of guess and check, we find that 9²=81 and is the integer you get by rounding down √84 (if we rounded up, 10 would have real solutions since we need the square to be less than 84 to get m²-84 negative). Therefore, 9 is our answer