Answer:
x= 3 and x= -3
Step-by-step explanation:
x^2 -9 = 0
Factor x^2-9
(x+3)(x-3)
If x+3=0, then x= -3
If x-3=0, then x= 3
X+2y
Plug in the variables
4+2(7)
4+14
x+2y=18
Answer:
Sophia could chug 26 beverages in 2 seconds
Step-by-step explanation:
If Sophia can chug 13 beverages in 1 second.
then, For 2 seconds
13 × 2 = 26
Thus, Sophia could chug 26 beverages in 2 seconds
<u>-TheUnknownScientist</u>
3x² - 8x > 11
3x² - 8x - 11 > 11 - 11
3x² - 8x - 11 > 0
x > <u>-(-8) +/- √((-8)² - 4(3)(-11))</u>
2(3)
x > <u>8 +/- √(64 + 132)</u>
6
x ><u> 8 +/- √(196)
</u> 6
x > <u>8 +/- 14</u>
6
x > <u>8 + 14</u> x > <u>8 - 14</u>
6 6
x > <u>20</u> x > <u>-6</u>
6 6
x > 3.33 x > -1
<u />
If they have the same measure two circles are congruent if they have the same diameter
